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Every free tool on RupayaTools, in one place — 653 calculators, converters and generators for salary, money, construction, math, home, health and files. Use the filter below to jump to the one you need, or browse by category. Every tool runs in your browser, with no sign-up and no downloads.

Salary Calculators (4 tools)

Construction Calculators (5 tools)

Finance Calculators (112 tools)

Finance Calculators

APR Calculator

Find the true annual percentage rate of a loan, with monthly payment.

Finance Calculators

Annuity Calculator

Work out the future value of regular payments, with interest.

Finance Calculators

Biweekly Mortgage Calculator

See how biweekly payments shorten a mortgage and save interest.

Finance Calculators

Break Even Calculator

Find your break-even point in units and revenue from costs and price.

Finance Calculators

CAGR Calculator

Measure the annual growth rate of your investments.

Finance Calculators

Cap Rate Calculator

Find the capitalisation rate and value of a rental property.

Finance Calculators

Capital Gains Calculator

Work out your total gain, per-share gain, and return on any sale.

Finance Calculators

Credit Card EMI Calculator

Turn a credit-card purchase into monthly installments — EMI, total interest, and a full amortisation table.

Finance Calculators

Credit Card Interest Calculator

Work out credit-card interest and payoff time from balance and APR.

Finance Calculators

Crypto Profit Calculator

Work out profit, loss and return on any crypto trade.

Finance Calculators

DSCR Calculator

Work out the debt service coverage ratio for a loan or property.

Finance Calculators

Diamond Price Calculator

Estimate a diamond’s value from carat, cut, colour and clarity.

Finance Calculators

Dividend Calculator

Estimate dividend income and yield from shares you own.

Finance Calculators

Emergency Fund Calculator

Find how many months of expenses your emergency fund should cover.

Finance Calculators

EMI Calculator

Calculate loan EMI, total interest and total repayment.

Finance Calculators

FD Calculator

Estimate the maturity value of your fixed deposit.

Finance Calculators

Freelance Rate Calculator

Turn a target salary into hourly, daily, and project rates.

Finance Calculators

Future Value Calculator

See what a lump sum plus monthly contributions grows to over time.

Finance Calculators

Gold Price Calculator

Price gold by karat and weight, and value scrap gold, with an editable spot price.

Finance Calculators

GST Calculator

Add or remove GST and split CGST and SGST amounts.

Finance Calculators

Hourly to Salary Calculator

Convert an hourly wage to an annual salary, with overtime.

Finance Calculators

Income Tax Calculator

Compare old vs new regime tax on your salary income.

Finance Calculators

Income Tax Slab Calculator

Calculate tax by brackets with the 2026 preset or your own editable slabs, for any filing status.

Finance Calculators

IRR Calculator

Find the internal rate of return of an investment, with a cash-flow table.

Finance Calculators

Leave Encashment Calculator

Calculate the payout for unused leave days from your salary, with a tax deduction and net amount.

Finance Calculators

Loan Against Property Calculator

Work out EMI, interest and eligibility for a loan against property.

Finance Calculators

Loan Prepayment Calculator

See how extra payments cut interest and shorten a loan.

Finance Calculators

Markup Calculator

Find markup, margin, and selling price from cost and profit.

Finance Calculators

Net Worth Calculator Online

Add up your assets and debts to find your net worth in seconds.

Finance Calculators

NPV Calculator

Value a project by its discounted cash flows, with a rate chart.

Finance Calculators

PPF Calculator

Project your Public Provident Fund corpus and interest.

Finance Calculators

Profit Percentage Calculator

Work out profit, loss, and margin on any sale.

Finance Calculators

RD Calculator

Plan a recurring deposit or regular monthly savings — maturity value, interest earned, and growth chart.

Finance Calculators

ROI Calculator

Measure the return on any investment in dollars and percent.

Finance Calculators

Refinance Calculator

See if refinancing saves money — new payment, interest, and break-even.

Finance Calculators

Retirement Savings Calculator

See how your nest egg grows by retirement age, with contributions.

Finance Calculators

Salary Hike (Raise) Calculator

Work out your new salary, hike amount, and percentage after a raise.

Finance Calculators

Savings Goal Calculator

Work out the monthly saving needed to reach any target amount.

Finance Calculators

SIP Calculator

Project mutual fund SIP growth with expected returns.

Finance Calculators

Silver Price Calculator

Find the value of silver by weight, purity and live price.

Finance Calculators

Stamp Duty Calculator

Work out property stamp duty for the UK, Australia, India, or any custom rate — with a full breakdown.

Finance Calculators

Stock Average Calculator

Average down a stock position and find the new break-even price.

Finance Calculators

VAT Calculator

Add or remove VAT from any price, with the tax split shown.

Finance Calculators

Churn Calculator

Find your customer churn rate, revenue churn, and average customer lifetime.

Finance Calculators

Debt Snowball Calculator

Pay off debts smallest-first and see your debt-free date.

Finance Calculators

Electricity Cost Calculator

Work out what your appliances cost to run each month.

Finance Calculators

Overtime Pay Calculator

Work out regular pay, overtime pay, and gross pay.

Finance Calculators

Purchasing Power Calculator

Use this free purchasing power calculator to see what your money will really be worth in the future.

Finance Calculators

Rent Increase Calculator

Work out a new rent after an increase, with caps and notice rules.

Finance Calculators

ARM Mortgage Calculator

Work out ARM payments with our free ARM mortgage calculator.

Finance Calculators

Balance Transfer Calculator

See how much a balance transfer saves you in interest.

Finance Calculators

Balloon Payment Calculator

Work out the monthly payment and balloon balance on a loan.

Finance Calculators

Construction Loan Calculator

Estimate interest-only payments during construction and the mortgage after.

Finance Calculators

Credit Card Minimum Payment Calculator

See how long minimum payments take to clear a card balance.

Finance Calculators

Credit Score Simulator

See how everyday actions could move your credit score up or down.

Finance Calculators

401k Calculator

Estimate how your 401(k) retirement savings can grow over time.

Finance Calculators

CD Calculator

See how much a certificate of deposit can earn by maturity.

Finance Calculators

IRA Calculator

Project how a traditional IRA can grow from yearly contributions.

Finance Calculators

Rental Yield Calculator

Work out gross and net rental yield with our free rental yield calculator.

Finance Calculators

Stock Profit Calculator

Find profit, ROI, and break-even price on any stock trade.

Finance Calculators

Take Home Salary Calculator

See your take-home pay after federal tax, FICA, and state tax, per paycheck.

Finance Calculators

Baby Cost Calculator

Estimate the first-year cost of a baby, month by month and in total.

Finance Calculators

Capital Gains Tax Calculator

Estimate tax on short-term and long-term capital gains with 2026 rates.

Finance Calculators

eBay Fee Calculator

Work out eBay final value and processing fees and your net proceeds.

Finance Calculators

Etsy Fee Calculator

Work out Etsy fees and your net profit per sale.

Finance Calculators

Freelance Tax Calculator

Estimate self-employment tax, income tax, and quarterly payments.

Finance Calculators

PMI Calculator

Find your LTV, down payment and monthly mortgage insurance.

Finance Calculators

401k Contribution Calculator

See your per-paycheck 401(k) contribution and employer match.

Finance Calculators

401k Withdrawal Calculator

Work out what a 401(k) withdrawal is worth after taxes and penalties.

Finance Calculators

529 Calculator

See how a 529 college savings plan can grow over the years.

Finance Calculators

Babysitting Rate Calculator

Work out fair babysitting pay from rate, hours, children, and evening multipliers.

Finance Calculators

Car Insurance Premium Calculator

Estimate your yearly car insurance premium from your car and profile.

Finance Calculators

Child Support Calculator

Estimate monthly child support from both parents' incomes.

Finance Calculators

Bike Insurance Premium Calculator

Enter your motorcycle's value, coverage type, rider age and experience to estimate your annual and monthly premium.

Finance Calculators

Cash on Cash Return Calculator

Work out your rental's cash on cash return with our free calculator.

Finance Calculators

Dropshipping Profit Calculator

Find profit per order and margin for a dropshipping product.

Finance Calculators

Electric Car Savings Calculator

Compare an electric car with a petrol car — fuel costs, savings and break-even.

Finance Calculators

Escrow Calculator

Work out your monthly escrow for taxes and insurance.

Finance Calculators

Estate Tax Calculator

Estimate federal estate tax and what heirs receive.

Finance Calculators

Federal Income Tax Calculator

Estimate your 2026 federal tax, taxable income and effective rate.

Finance Calculators

Flood Insurance Calculator

Estimate yearly flood insurance from your zone and coverage.

Finance Calculators

Health Insurance Premium Calculator

Estimate monthly health insurance premiums by age, plan tier, and state.

Finance Calculators

HOA Fee Calculator

Estimate monthly HOA dues itemised by expense, or as a percentage of home value.

Finance Calculators

Home Depreciation Calculator

Work out annual rental-property depreciation and the full schedule.

Finance Calculators

Home Insurance Calculator

Estimate homeowners insurance premiums by home value, risk, and deductible.

Finance Calculators

House Flipping Calculator

Estimate profit, ROI, and the 70% rule on a flip.

Finance Calculators

I Bond Calculator

Project I Bond growth from fixed and inflation rates.

Finance Calculators

Index Fund Return Calculator

Project index fund growth from contributions, returns, and fees over time.

Finance Calculators

Lease vs Buy Car Calculator

Compare leasing vs buying a car over the same period.

Finance Calculators

Lifetime Value Calculator

Work out customer lifetime value and the LTV to CAC ratio.

Finance Calculators

Mortgage Points Calculator

See if buying mortgage points pays off, and when.

Finance Calculators

Motorcycle Loan Calculator

Work out monthly payments, interest, and total cost for a motorcycle loan.

Finance Calculators

Pension Calculator

Estimate your yearly and monthly pension from salary and service.

Finance Calculators

Pet Insurance Calculator

Estimate monthly pet insurance premiums by pet type, age, size and coverage.

Finance Calculators

Photography Pricing Calculator

Price a photo session from your costs, time, and profit margin.

Finance Calculators

Quarterly Tax Calculator

Estimate your federal tax and split it into four quarterly payments.

Finance Calculators

Real Estate Commission Calculator

Work out agent commission on any home sale price.

Finance Calculators

Rental Property Calculator

Analyse a rental property’s cash flow, cap rate, and cash-on-cash return.

Finance Calculators

Restaurant Tip Calculator

Work out the tip, total bill, and each person's share.

Finance Calculators

Roth Conversion Calculator

Compare converting an IRA to Roth versus leaving it alone.

Finance Calculators

Salary Negotiation Calculator

Compare an offer with your current pay and find your counter range.

Finance Calculators

Security Deposit Calculator

Work out a security deposit and the refund after deductions.

Finance Calculators

Self Employment Tax Calculator

Work out the 15.3% self-employment tax on net earnings, with the deductible half.

Finance Calculators

SEP IRA Calculator

Work out your SEP IRA contribution and projected retirement balance.

Finance Calculators

Shopify Profit Calculator

Find profit per order and margin on Shopify after fees, shipping, and discounts.

Finance Calculators

Stripe Fee Calculator

Work out Stripe fees instantly with our free Stripe fee calculator.

Finance Calculators

Tax Refund Calculator

Estimate your federal tax refund (or amount owed) from income and withholding.

Finance Calculators

Total Cost of Ownership Calculator

Add up purchase price, fuel, insurance, maintenance and resale to find a vehicle's true cost.

Finance Calculators

Travel Budget Calculator

Plan a trip budget by category and see the total, per-person, and per-day cost.

Finance Calculators

Customer Acquisition Cost Calculator

Find your CAC from sales and marketing spend, plus payback and LTV ratio.

Finance Calculators

Water Bill Calculator

Estimate your monthly water bill from usage and rates.

Finance Calculators

Wedding Budget Calculator

Plan your big day with our free wedding budget calculator.

Everyday Tools (15 tools)

Image & PDF Tools (8 tools)

Unit Converters (121 tools)

Unit Converters

Age Difference Calculator

Find the exact age gap between two people or dates.

Unit Converters

Amps to Watts Calculator

Convert amps to watts with voltage, and watts back to amps.

Unit Converters

Bandwidth Calculator

Work out download time from file size and connection speed.

Unit Converters

Battery Life Calculator

Estimate how long a battery lasts for any device and load.

Unit Converters

Celsius to Kelvin Converter

Convert Celsius to kelvin — board exam essential.

Unit Converters

CM to Feet Converter

Convert cm to feet and inches — handy for height on forms.

Unit Converters

CM to Inches Converter

Convert cm to inches, mm and feet — great for TV sizes.

Unit Converters

Clothing Size Converter

Convert clothing sizes between US, UK, EU and international charts.

Unit Converters

Data Usage Calculator

Estimate monthly GB from streaming, calls, browsing, and gaming.

Unit Converters

Download Speed Calculator

Work out download times from file size and connection speed.

Unit Converters

EUR to USD Converter

Convert euros to US dollars at the latest exchange rate.

Unit Converters

Fahrenheit to Kelvin Converter

Convert Fahrenheit to kelvin — physics made easy.

Unit Converters

Feet and Inches to CM Converter

Convert height like 5'7" to cm instantly.

Unit Converters

Feet to CM Converter

Convert feet to cm — handy for height on forms.

Unit Converters

Fuel Cost Calculator

Work out fuel cost, gallons used, and total for any trip.

Unit Converters

Fuel Efficiency Calculator

Find out how far your car really goes on a gallon or a litre.

Unit Converters

Grams to Cups Converter

Convert grams to cups for common ingredients, with densities.

Unit Converters

Grams to KG Converter

Convert grams to kg — for kitchen and parcels.

Unit Converters

Hat Size Calculator

Find your hat size from a head measurement, in US, UK and cm.

Unit Converters

Hex to RGB Converter

Convert hex to RGB and HSL, with a live color preview.

Unit Converters

Hijri Calendar Converter

Convert dates between the Hijri and Gregorian calendars.

Unit Converters

Kelvin to Celsius Converter

Convert kelvin to Celsius — for science class.

Unit Converters

Kelvin to Fahrenheit Converter

Convert kelvin to Fahrenheit — labs and US weather.

Unit Converters

KG to Grams Converter

Convert kg to grams — for recipes and diet plans.

Unit Converters

KG to Pounds Converter

Convert kg to pounds — gym, flights, shipping.

Unit Converters

Kilowatt to Unit Converter (Electricity)

kW to electricity units + bill estimate.

Unit Converters

KM to Miles Converter

Convert km to miles, meters, yards and feet instantly.

Unit Converters

Land Unit Converter (India)

Acre, bigha, guntha, sq ft — for land deals.

Unit Converters

Miles to Steps Calculator

Convert miles walked or run into steps, with stride length.

Unit Converters

MPH to KPH Converter

Convert mph to kph — car specs and movies.

Unit Converters

Military Time Converter

Convert 24-hour military time to 12-hour AM/PM time, and back.

Unit Converters

Months Between Dates Calculator

Count full months and days between any two dates.

Unit Converters

Nautical Miles to KM Converter

Convert nautical miles to km — for ships and flights.

Unit Converters

Notice Period Calculator

Work out your last working day from a resignation date and notice period.

Unit Converters

Ounces to Pounds Converter

Convert ounces to pounds — for US recipes.

Unit Converters

PPI Calculator

Find pixels per inch of any screen from resolution and size.

Unit Converters

Percent Off Calculator

Find the sale price and savings on any discount.

Unit Converters

Pounds to Ounces Converter

Convert pounds to ounces — 16 oz per pound.

Unit Converters

Pounds to Stone Converter

Convert pounds to stone — the British weight unit.

Unit Converters

Prayer Time Calculator

Find daily prayer times for any location and date.

Unit Converters

Quintal to Kg Converter

Convert quintals to kilograms, and kilograms to quintals.

Unit Converters

Ring Size Calculator

Find your ring size from diameter, circumference or another size.

Unit Converters

Roman Numerals Converter

Convert numbers to Roman numerals and Roman numerals back to numbers.

Unit Converters

Speed Calculator

Find speed, distance, or time from the other two.

Unit Converters

Speed Distance Time Calculator

Solve for speed, distance, or time — any one of the three from the other two.

Unit Converters

Steps to Miles Calculator

Convert steps to miles or kilometres from your stride length.

Unit Converters

Stone to KG Converter

Convert stone to kg — British weights in kilos.

Unit Converters

Time Zone Converter

Convert times between time zones, including EST to IST and EST to PST.

Unit Converters

Tyre Size Calculator

Compare tyre sizes, diameter and speedometer difference.

Unit Converters

Week Number Calculator

Find the ISO week number and date range for any date.

Unit Converters

Yards to Meters Converter

Convert yards to meters — and meters back to yards.

Unit Converters

Altitude Calculator

Find altitude from air pressure, or pressure and boiling point from altitude.

Unit Converters

Dew Point Calculator

Find the dew point and frost point from temperature and humidity, with a comfort reading.

Unit Converters

Humidity Calculator

Find relative humidity, absolute humidity and dew point from temperature and moisture.

Unit Converters

Julian Date Converter

Convert Gregorian dates to Julian Day Numbers and back, with the day of the week.

Unit Converters

Resistor Color Code Calculator

Use this free resistor color code calculator to read the coloured bands on a resistor and find its resistance in ohms, its tolerance, and — for 6-band...

Unit Converters

Yeast Converter

Convert between fresh, active dry, and instant yeast by weight or spoon.

Unit Converters

Base64 Decoder Online

Decode base64 to text — or encode text to base64 — instantly in your browser.

Unit Converters

Base64 to Image Converter

Turn a base64 string into an image preview and download it.

Unit Converters

BTU to Joules Converter

Convert BTU to joules and more.

Unit Converters

Centimeters to Meters Converter

Convert centimeters to meters — and meters back to centimeters.

Unit Converters

CM Ruler Online

Measure anything on screen with a calibrated centimetre and inch ruler.

Unit Converters

Cubic Meters to Gallons Converter

Convert cubic meters to gallons, liters, and cubic feet.

Unit Converters

ETH to USD Converter

Convert Ethereum to US dollars at the price you enter.

Unit Converters

EV Charging Cost Calculator

Find what an EV charge costs and how long it takes at home or in public.

Unit Converters

Grams to Teaspoons Converter

Convert grams to teaspoons for water, sugar, salt and more.

Unit Converters

KB to MB Converter

Convert KB, MB, GB and TB in both directions.

Unit Converters

Liters to Cups Converter

Convert liters to US cups — and cups back to liters.

Unit Converters

Voltage Calculator

Solve Ohm's law for voltage, current, resistance, and power.

Unit Converters

BTU to Watts Converter

Convert BTU per hour to watts, kilowatts, and horsepower.

Unit Converters

Calories to Joules Converter

Convert calories, kilocalories, joules, BTU, and kWh.

Unit Converters

DMS to Decimal Converter

Convert degrees, minutes and seconds to decimal degrees — and back.

Unit Converters

Kbps to Mbps Converter

Convert kilobits to megabits per second — and other data rates.

Unit Converters

kW to HP Converter

Convert kilowatts, horsepower, and watts in any direction.

Unit Converters

RGB to CMYK Converter

Convert RGB colors to CMYK and back, with a live swatch.

Unit Converters

Battery Size Calculator

Size a battery bank in amp-hours and kilowatt-hours for solar, RV, or off-grid power.

Unit Converters

Belt Size Calculator

Enter your waist or pants size in inches or cm and get your belt size for men and women, plus US, EU and UK sizes.

Unit Converters

Bra Size Calculator

Find your US bra size from band and bust measurements, with sister sizes.

Unit Converters

Carat to Grams

Convert carats to grams and other gemstone weights.

Unit Converters

Cups to Pints Converter

Convert cups to pints — and pints back to cups.

Unit Converters

Days to Weeks Converter

Convert days to weeks, months, years, hours, and minutes.

Unit Converters

1km to Miles Converter

Convert kilometers to miles quickly and accurately.

Unit Converters

Glove Size Calculator

Measure your hand circumference and get your glove size in letter and numeric sizes.

Unit Converters

Inches to Pixels Converter

Convert inches to pixels at any DPI — and pixels back to inches.

Unit Converters

Km to Cm Converter

Convert kilometers to centimeters — and centimeters back to kilometers.

Unit Converters

Light Years to Km Converter

Convert light years, parsecs, and AU to kilometres, miles, and more.

Unit Converters

Liters to Milliliters Converter

Convert liters to milliliters — and milliliters back to liters.

Unit Converters

Grams to Milligrams Converter

Convert grams to milligrams and back, with kilograms and ounces too.

Unit Converters

Inches to Yards Converter

Convert inches to yards — and yards back to inches.

Unit Converters

Knots to MPH Converter

Convert knots to miles per hour for wind and boat speed.

Unit Converters

Liters to Cubic Feet

Convert liters to cubic feet and other volume units.

Unit Converters

Mg to mL Converter

Convert milligrams to milliliters for water and other liquids.

Unit Converters

Liters to Quarts Converter

Convert liters to quarts — and quarts back to liters.

Unit Converters

Millimeters to Inches Converter

Convert millimeters to inches for precise measurements.

Unit Converters

mmHg to PSI Converter

Convert mmHg, psi, kPa, bar, atm, torr, and pascals.

Unit Converters

MPH to Mach Converter

Convert miles per hour to Mach number at any altitude and temperature.

Unit Converters

MPH to m/s Converter

Convert mph, meters per second, ft/s, km/h, and knots.

Unit Converters

Nautical Miles to Km Converter

Convert nautical miles to kilometers, miles, and meters.

Unit Converters

Paper Weight Calculator

Convert paper weights between gsm and pounds, and work out ream weight.

Unit Converters

Pascal to PSI Converter

Use this free Pascal to PSI converter to change a pressure in pascals into pounds per square inch (PSI), or to change PSI back into pascals.

Unit Converters

Pints to Quarts Converter

Convert pints to quarts — and quarts back to pints.

Unit Converters

Pounds to Newtons Converter

Convert pounds-force to newtons — and newtons back to pounds.

Unit Converters

PSI to kPa Converter

Convert psi, kilopascals, bar, and atmospheres.

Unit Converters

Pt to Px Converter

Convert points to pixels at any DPI — and pixels back to points.

Unit Converters

Radians to Degrees Converter

Convert radians to degrees — and degrees back to radians.

Unit Converters

RPM to Rad/s

Convert RPM to radians per second and other angular speeds.

Unit Converters

Seconds to Minutes Converter

Convert seconds to minutes — and minutes back to seconds.

Unit Converters

Speaker Test Online

Test your speakers online for free.

Unit Converters

Square Meters to Acres Converter

Convert square meters to acres, hectares, and square feet.

Unit Converters

Subtract Days From Date Calculator

Add or subtract days, weeks, months, or years from any date.

Unit Converters

Tablespoons to Cups Converter

Convert tablespoons to cups for cooking and baking.

Unit Converters

TB to GB Converter

Convert terabytes to gigabytes — and gigabytes back to terabytes.

Unit Converters

Toll Calculator

Estimate trip tolls by distance, rate, and vehicle class, with turnpike presets.

Unit Converters

Tons to Kg Converter

Convert US tons, metric tonnes, and pounds to kilograms.

Unit Converters

Troy Ounces to Grams Converter

Convert troy ounces to grams, ounces, kilograms, and grains.

Unit Converters

Upload Speed Calculator

Find out how long a file will take to upload or download.

Unit Converters

Video Bitrate Calculator

Work out video bitrate from file size and duration — or file size from bitrate.

Unit Converters

Voltage Drop Calculator

Find the voltage drop and percent loss on any wire run.

Unit Converters

Wedding Anniversary Calculator

Find your next anniversary, years married, and milestone gift.

Unit Converters

Weeks to Years Converter

Convert weeks to years, months, days, and more.

Unit Converters

Wire Size Calculator

Find the right wire size (AWG) for any circuit from amps and length.

Math & Science (54 tools)

Math & Science

Algebra Calculator

Solve linear equations step by step, with the working shown.

Math & Science

Binary Calculator

Convert binary to decimal, hex, and octal — and back.

Math & Science

Circumference Calculator

Find circumference, area, radius, or diameter of any circle.

Math & Science

Cosine Calculator

Work out cosine, sine, tangent and angles in degrees or radians.

Math & Science

Decimal to Fraction Calculator

Turn any decimal into a simplified fraction, or back again.

Math & Science

Decimal to Percent Calculator

Convert decimals to percents, percents to decimals, and fractions to percents.

Math & Science

Equation Solver

Solve linear and quadratic equations step by step.

Math & Science

Exponent Calculator

Raise any base to any power, including negative exponents.

Math & Science

Factorial Calculator

Find n! exactly for n from 0 to 100, with a step-by-step expansion.

Math & Science

Fibonacci Calculator

Generate the Fibonacci sequence to any term, with the golden ratio.

Math & Science

Final Grade Calculator

Find the score you need on your final exam to reach your target grade.

Math & Science

Fraction to Decimal Calculator

Turn any fraction into a decimal or percent, including repeating decimals.

Math & Science

GCF Calculator

Find the greatest common factor of two or three numbers, with steps.

Math & Science

Half-Life Calculator

Find how much of a substance remains after any time, with a decay chart.

Math & Science

Log Calculator

Find log base 10, natural log, log base 2, or any custom base.

Math & Science

Median Calculator

Find the median, mean, mode, range, and standard deviation of any list.

Math & Science

Net Run Rate Calculator

Work out a cricket team’s net run rate from runs, overs and wickets.

Math & Science

Nth Root Calculator

Find the nth root of any number — square, cube, fourth root and beyond.

Math & Science

Permutation Calculator

Count permutations and combinations, with or without repetition.

Math & Science

Prime Factorization Calculator

Break any number into its prime factors, with a factor tree.

Math & Science

Prime Number Checker

Test if any number up to 10^18 is prime, find the next or previous prime, and list primes in a range.

Math & Science

Probability Calculator

Work out the probability of events, with odds and combinations.

Math & Science

Rounding Calculator

Round any number to decimal places, tens, hundreds, or significant figures.

Math & Science

Slope Calculator

Find the slope of a line from two points or rise over run.

Math & Science

Tangent Calculator

Find tangent, sine, cosine and angle values for any triangle.

Math & Science

Vector Calculator

Add, subtract, and dot vectors, with magnitudes and angles.

Math & Science

Volume Calculator

Compute the volume of boxes, cylinders, spheres, and cones.

Math & Science

Confidence Interval Calculator

Find the margin of error and confidence interval for a mean or a proportion.

Math & Science

Density Calculator

Solve for mass, volume or density with unit options and material presets for water, steel, aluminum, gold and more.

Math & Science

Golden Ratio Calculator

Find the golden ratio sides of any rectangle.

Math & Science

Scientific Notation Converter

Convert numbers to scientific, e-notation, and engineering form.

Math & Science

Z-Score Calculator

Find z-scores and percentiles from any value.

Math & Science

Decibel Calculator

Convert power and amplitude ratios to dB, add two sound levels, and compare dB, dBm and dBV values.

Math & Science

Ellipse Calculator

Find the area, perimeter, eccentricity, and foci of any ellipse.

Math & Science

Hex Calculator

Convert between hex, decimal, binary, and octal.

Math & Science

Limit Calculator

Evaluate limits of f(x) numerically from both sides, with approaching-values tables.

Math & Science

Linear Regression Calculator

Find the slope, intercept, and R² of a best-fit line from your data.

Math & Science

Pythagoras Calculator

Solve right triangles: hypotenuse, legs, area, and perimeter.

Math & Science

Variance Calculator

Find population and sample variance from any list of numbers.

Math & Science

Proportion Calculator

Solve a/b = c/d for the missing value with steps shown.

Math & Science

Number to Words Converter

Turn any number into words — cardinal, ordinal, or currency.

Math & Science

Midpoint Calculator

Find the midpoint of two points, in 2D or 3D, with distance.

Math & Science

Lottery Odds Calculator

Work out your odds of winning Powerball, Mega Millions, and more.

Math & Science

Modulo Calculator

Find remainders and modular inverses, step by step.

Math & Science

Moon Phase Calculator

Use this free moon phase calculator to find the phase of the moon on any date.

Math & Science

System of Equations Solver

Solve 2x2 and 3x3 linear systems step by step with Gaussian elimination.

Math & Science

Wavelength Calculator

Find wavelength from frequency, or frequency from wavelength.

Math & Science

Chmod Calculator

Convert between octal and symbolic file permissions.

Math & Science

Hex to ASCII Converter

Convert hexadecimal to ASCII text and back.

Math & Science

LED Resistor Calculator

Find the right resistor for any LED and supply voltage.

Math & Science

Mixed Number Calculator

Add, subtract, multiply, and divide mixed numbers.

Math & Science

Words to Numbers

Turn number words like 'one thousand two hundred' into digits.

Math & Science

Plate Calculator

Load your barbell fast with our free plate calculator.

Math & Science

Surface Area Calculator

Find the surface area of cubes, spheres, cylinders, and boxes.

Home & Construction (90 tools)

Home & Construction

Carpet Calculator

Work out square yards, strips, and seams for any carpeted room.

Home & Construction

Coffee Ratio Calculator

Find the perfect coffee-to-water ratio for any brew method.

Home & Construction

Deck Calculator

Work out boards, joists, and fasteners for any deck.

Home & Construction

Drywall Calculator

Work out drywall sheets, screws and compound for any room.

Home & Construction

Flooring Calculator

Find square feet, boxes, and pieces for laminate, hardwood, or vinyl.

Home & Construction

Generator Size Calculator

Size a generator from your appliances, with watts and kVA.

Home & Construction

Gravel Calculator

Find cubic yards and tons of gravel for any area.

Home & Construction

Moving Cost Calculator

Estimate the cost of a house move from distance and volume.

Home & Construction

Mulch Calculator

Find cubic yards and bags of mulch for any bed or garden.

Home & Construction

Paint Calculator

Work out how much paint, primer, and money a room needs, coats included.

Home & Construction

Pool Volume Calculator

Find pool volume in gallons and litres, any shape.

Home & Construction

Recipe Scaler

Scale any recipe up or down — ingredients adjust automatically.

Home & Construction

Registration Charges Calculator

Work out property registration charges from the value, rate, and fixed fees — with the effective rate.

Home & Construction

Roofing Calculator

Estimate roofing shingles and cost from roof size and pitch.

Home & Construction

Solar Panel Calculator

Size a solar panel system from your usage, with panels, cost, and payback.

Home & Construction

TV Distance Calculator

Find the best viewing distance for any TV size, or the right size.

Home & Construction

Tank Volume Calculator

Find any tank's capacity in gallons and liters, any shape.

Home & Construction

Tile Calculator

Work out how many tiles and boxes your floor or wall needs.

Home & Construction

Wallpaper Calculator

Work out rolls and square feet of wallpaper for any room.

Home & Construction

Backsplash Tile Calculator

Enter your wall size and tile size to get tiles needed, boxes to buy, and a grout estimate — with waste included.

Home & Construction

Countertop Calculator

Countertop area and cost for any material and layout.

Home & Construction

Lawn Seed Calculator

Work out how much grass seed your lawn needs, by area and grass type.

Home & Construction

Packing Calculator

Estimate boxes, tape, and wrap for your move.

Home & Construction

Asphalt Calculator

Calculate asphalt tonnage for driveways and parking areas.

Home & Construction

Bathroom Remodel Cost Calculator

Estimate the cost of a bathroom remodel by size and finish.

Home & Construction

Board Foot Calculator

Figure board feet for lumber projects and pricing.

Home & Construction

Concrete Footing Calculator

Work out concrete volume and bag counts for any footing.

Home & Construction

Brick Calculator

Find how many bricks and mortar bags a wall needs.

Home & Construction

Fence Post Calculator

Posts, panels, rails, and concrete for any fence run.

Home & Construction

Insulation Calculator

Work out how many bags, batts, or kits insulate a space.

Home & Construction

Sand Calculator

Find cubic yards, tons, and bags of sand for any area.

Home & Construction

Deck Cost Calculator

Estimate your deck cost with our deck cost calculator.

Home & Construction

Garage Size Calculator

Find the right garage size for your vehicles and storage.

Home & Construction

Kitchen Remodel Cost Calculator

Estimate a kitchen remodel from size and finish level.

Home & Construction

Patio Cost Calculator

Estimate patio cost by size, material, and finish.

Home & Construction

AC Tonnage Calculator

Size your air conditioner with our AC tonnage calculator.

Home & Construction

Aquarium Calculator

Work out aquarium gallons, glass, and fish capacity.

Home & Construction

Baseboard Calculator

Figure out how many baseboards you need with our baseboard calculator.

Home & Construction

Book Spine Calculator

Work out a book's spine width from pages and paper thickness.

Home & Construction

Bread Hydration Calculator

Find water, salt, and starter weights for any hydration level from your flour.

Home & Construction

BTU Calculator

Work out the heating and cooling BTU your room needs.

Home & Construction

Compost Calculator

Work out the right greens-to-browns mix for compost.

Home & Construction

Egg Timer

A simple egg timer with soft, medium, and hard presets.

Home & Construction

Fabric Yardage Calculator

Work out how much fabric you need for any sewing project.

Home & Construction

Candle Burn Time Calculator

Work out how long a candle will burn from its wax and wick.

Home & Construction

Candle Wax Calculator

Find wax, fragrance, and wicks for handmade candles in any jar.

Home & Construction

Chicken Coop Calculator

Size a chicken coop and run for your flock.

Home & Construction

Curtain Size Calculator

Work out curtain width, length, and fabric for any window.

Home & Construction

Fertilizer Calculator

Find how much fertilizer your lawn or garden needs.

Home & Construction

Firewood Calculator

Work out how much firewood you have with our firewood calculator.

Home & Construction

Furnace Size Calculator

Find the right furnace BTU size for your home.

Home & Construction

Hardwood Floor Cost Calculator

Estimate hardwood flooring costs — materials, labour and boxes.

Home & Construction

Home Renovation Cost Calculator

Pick a project type, size and finish level to get a low-high cost range with a per-sq-ft breakdown.

Home & Construction

Knitting Gauge Calculator

Turn your gauge swatch into cast-on stitches, rows needed, and a yarn estimate for any project.

Home & Construction

Lotion Calculator

Formulate a DIY lotion batch with exact grams for each phase.

Home & Construction

Lumber Calculator

Work out board feet and cost for any lumber list.

Home & Construction

Oil Change Cost Calculator

Work out the cost of an oil change by oil type, capacity, filter and labour — DIY or garage.

Home & Construction

Paver Calculator

Count pavers, gravel, sand, and edging for a patio or driveway, with cost.

Home & Construction

Pergola Calculator

Estimate lumber and cost for a backyard pergola.

Home & Construction

Pipe Size Calculator

Find the right pipe diameter from flow rate and velocity, with friction loss.

Home & Construction

Pizza Dough Calculator

Scale pizza dough by flour, water, salt, and yeast for any number of pizzas.

Home & Construction

Pool Chemical Calculator

Work out chlorine, pH, and alkalinity doses for your pool.

Home & Construction

Projector Throw Calculator

Find the right projector distance for any screen size and throw ratio.

Home & Construction

Quilt Calculator

Find fabric yardage, blocks, backing, and binding for any quilt size.

Home & Construction

Rafter Calculator

Find rafter length, ridge height, and birdsmouth cuts for any roof.

Home & Construction

Raised Bed Soil Calculator

Work out soil, compost, and bags for a raised bed.

Home & Construction

Rebar Calculator

Calculate rebar length, bars, and weight for slabs and footings.

Home & Construction

Resin Calculator

Find how much resin you need with our resin calculator.

Home & Construction

Retaining Wall Calculator

Find blocks, cap, gravel, and cost for a retaining wall.

Home & Construction

Roof Shingle Calculator

Estimate shingle bundles and squares for any roof.

Home & Construction

Seed Calculator

Pick a vegetable, enter row length and rows, and get seeds needed, packets to buy, and expected plants after germination.

Home & Construction

Shed Size Calculator

Find the right shed size for your tools, bikes, and mower.

Home & Construction

Siding Calculator

Estimate siding squares, boxes, and pieces for any wall.

Home & Construction

Snow Removal Calculator

Estimate snow volume, weight, clearing time, and de-icer for your driveway.

Home & Construction

Soap Calculator

Work out lye and water for cold-process soap recipes.

Home & Construction

Sod Calculator

Estimate sod rolls or pallets for any lawn, with waste included.

Home & Construction

Sourdough Calculator

Work out flour, water, starter, and salt for the perfect sourdough loaf.

Home & Construction

Sprinkler Calculator

Work out sprinkler heads, zones, and water use for your lawn.

Home & Construction

Storage Unit Size Calculator

Find the right storage unit size for your rooms and boxes.

Home & Construction

Stud Calculator

Count wall studs and plate lumber for any wall length.

Home & Construction

Tire Pressure Calculator

This free tire pressure calculator finds the recommended tire pressure for your vehicle, adjusts it for the load you are carrying and the temperature...

Home & Construction

Towing Capacity Calculator

Check if your vehicle can safely tow a trailer.

Home & Construction

Turkey Cooking Time Calculator

Cooking time, thawing time, and done-by time for any turkey.

Home & Construction

Window Replacement Cost Calculator

Estimate the cost of replacing windows in your home.

Home & Construction

Yarn Calculator

Find how much yarn your knitting or crochet project needs.

Home & Construction

Crown Molding Calculator

Enter room size, molding size, corners and waste to get linear feet, pieces to buy, and estimated cost by material.

Home & Construction

Gutter Calculator

Enter roof area, rainfall intensity and gutter length to get the right gutter size, downspouts needed, and estimated cost.

Home & Construction

Joist Calculator

Enter span, spacing, loads and species to find the required floor joist size and max span, based on published design values.

Home & Construction

Roof Pitch Calculator

Find roof pitch, angle, and slope from rise and run.

Home & Construction

Stair Calculator

Work out risers, riser height, treads, and total run for stairs.

Generators & Text Tools (136 tools)

Generators & Text Tools

Case Converter

Change text to UPPERCASE, lowercase, Title Case, camelCase, and more.

Generators & Text Tools

How Old Am I

Find your exact age in years, months, and days from your birth date.

Generators & Text Tools

Love Calculator

Enter two names to get a love compatibility score, verdict, and lucky number.

Generators & Text Tools

Morse Code Translator

Translate text to Morse code and back, with audio playback.

Generators & Text Tools

Palindrome Checker

Check if any word, phrase, or number reads the same backwards.

Generators & Text Tools

Qibla Direction Finder

Find the direction of the Kaaba from anywhere in the world, with a compass, bearing, and distance.

Generators & Text Tools

Quote Generator

Get an inspiring quote — new one every time you click.

Generators & Text Tools

Random Color Generator

Generate random hex and RGB colours, with copy and lock.

Generators & Text Tools

Random Number Generator

Generate random numbers in any range, with or without duplicates.

Generators & Text Tools

Random String Generator

Generate random strings of letters, numbers and symbols.

Generators & Text Tools

Random Team Generator

Split names into random balanced teams in one click.

Generators & Text Tools

Salary Slip Generator

Build a clean, printable payslip with earnings, deductions, and net pay — no sign-up, nothing uploaded.

Generators & Text Tools

Text to Binary

Convert text to binary code and binary back to text.

Generators & Text Tools

UUID Generator

Generate UUID v1, v4, or v7 values in your browser, up to 50 at once.

Generators & Text Tools

Urdu Keyboard Online

Type in Urdu online with an on-screen keyboard, and copy the text.

Generators & Text Tools

WiFi Password Generator

Generate a strong, random WiFi password — choose 8–63 characters, letters, numbers and symbols.

Generators & Text Tools

Word Frequency Counter

Count words, frequency, and top words in any text.

Generators & Text Tools

ASCII Art Generator

Turn words into big ASCII art letters in four styles.

Generators & Text Tools

CSS Minifier

Shrink CSS by removing comments and whitespace, with before and after sizes.

Generators & Text Tools

Markdown Table Generator

Build markdown tables with alignment and download the .md file.

Generators & Text Tools

Acronym Generator

Turn any phrase into an acronym, or expand an acronym into words.

Generators & Text Tools

API Key Generator

Generate secure API keys in hex, base64, alphanumeric, or UUID form.

Generators & Text Tools

ASCII to Text

Convert ASCII codes to text in decimal or hex, instantly.

Generators & Text Tools

JSON Minifier

Minify or beautify JSON and see the bytes saved.

Generators & Text Tools

MD5 Generator Online

Generate MD5 hashes from text or files, instantly and in your browser.

Generators & Text Tools

Regex Tester

Test regular expressions live and see every match.

Generators & Text Tools

Bcrypt Generator

Hash passwords with bcrypt in your browser.

Generators & Text Tools

JWT Generator

Create a signed JSON Web Token (HS256) right in your browser.

Generators & Text Tools

SHA256 Generator

Hash any text or file with SHA-256, free and private.

Generators & Text Tools

Backwards Text Generator

Flip any text backwards in seconds with this free backwards text generator, also known as a reverse text generator.

Generators & Text Tools

Band Name Generator

Get five band name ideas in rock, metal, indie, and more.

Generators & Text Tools

Bar Graph Maker Online

Make a bar graph from your data and download it as a PNG image.

Generators & Text Tools

Attendance Calculator

Work out your attendance percentage and how many classes you can miss.

Generators & Text Tools

Big Five Personality Test

Take this free Big Five personality test and discover your scores for openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Generators & Text Tools

Birthday Card Maker

Design a birthday card with themes and download it as a PNG.

Generators & Text Tools

Blog Title Generator

Generate catchy blog titles by topic, tone, and style.

Generators & Text Tools

Border Radius Generator

Design rounded corners with a live preview and copy the CSS.

Generators & Text Tools

Birthday Wish Generator

Generate birthday wishes by tone and relationship, ready to copy.

Generators & Text Tools

Birthstone Finder

Find your birthstone by month or birth date, with its meaning.

Generators & Text Tools

Box Shadow Generator

Build CSS box shadows with a live preview and copy the code.

Generators & Text Tools

Cat Name Generator

Generate cat names by sex and style — cute, classic, or funny.

Generators & Text Tools

Certificate Generator Online

Make a printable achievement certificate and download it as a PNG.

Generators & Text Tools

Character Name Generator

Generate character names for modern, fantasy, and sci-fi stories.

Generators & Text Tools

ChatGPT Prompts

Ready-made ChatGPT prompts for writing, coding, business, and learning.

Generators & Text Tools

Chinese Zodiac Calculator

Find your Chinese zodiac animal and element from your birth year.

Generators & Text Tools

Cover Letter Generator

Write a tailored cover letter from your job details in seconds.

Generators & Text Tools

Cron Expression Generator

Build cron expressions and see them in plain English.

Generators & Text Tools

CSS Grid Generator

Build a CSS grid visually with this free CSS grid generator.

Generators & Text Tools

Days Until Birthday

Count down the days until your next birthday — and see the age you will turn.

Generators & Text Tools

Dead Pixel Test

Test your screen for dead or stuck pixels with fullscreen color slides.

Generators & Text Tools

DJ Name Generator

Generate DJ names by style — EDM, house, techno, hip-hop, and more.

Generators & Text Tools

Dog Name Generator

Find the perfect name for your dog by gender and style.

Generators & Text Tools

Fancy Font Generator

Turn plain text into fancy Unicode fonts to copy and paste.

Generators & Text Tools

Flexbox Generator

Build CSS flexbox layouts live and copy the code.

Generators & Text Tools

Font Pairing Generator

Find heading and body font pairs that look great together.

Generators & Text Tools

Free Fire Name Generator

Generate stylish, pro, and funny Free Fire names with symbols.

Generators & Text Tools

Friendship Calculator

Get a fun friendship score for two names — just for fun.

Generators & Text Tools

Gamertag Generator

Generate cool, funny, and fantasy gamertags for your next game.

Generators & Text Tools

Guitar Chord Finder

Find any guitar chord with fingering diagrams, notes, and barre voicings.

Generators & Text Tools

Habit Tracker Online

Track daily habits, build streaks and see your progress week by week.

Generators & Text Tools

Haiku Generator

Create a true 5-7-5 haiku in nature, seasons, city, or love themes — every line syllable-checked.

Generators & Text Tools

Horoscope Online

Get your free daily horoscope by zodiac sign.

Generators & Text Tools

HTML Decoder

Decode HTML entities instantly — & to &, © to ©, and more.

Generators & Text Tools

HTML Table Generator

Build clean HTML tables with headers, captions, and styling in seconds.

Generators & Text Tools

Instagram Bio Generator

Generate a ready-to-copy Instagram bio from your name and niche.

Generators & Text Tools

Instagram Name Generator

Generate Instagram handles from any keyword, in four styles.

Generators & Text Tools

Invisible Character Copy

Copy invisible characters and find hidden ones in your text.

Generators & Text Tools

IQ Test for Kids

A fun 10-question brain quiz for kids — not a clinical test.

Generators & Text Tools

ISBN Barcode Generator

Generate a real EAN-13 barcode from any ISBN.

Generators & Text Tools

Italic Text Generator

Turn plain text into italic Unicode text for bios and posts.

Generators & Text Tools

JWT Decoder Online

Decode any JWT to read its header and payload — no signature check.

Generators & Text Tools

Kanban Board

A simple kanban board to organize tasks, saved in your browser.

Generators & Text Tools

Lease Agreement Generator

Create a plain-English residential lease agreement from your details.

Generators & Text Tools

Leet Speak Translator

Translate text to and from leet speak (1337).

Generators & Text Tools

LinkedIn Headline Generator

Write a LinkedIn headline that gets noticed.

Generators & Text Tools

Logo Size Guide

Find the right logo dimensions for every platform, plus an aspect-ratio scaler.

Generators & Text Tools

Love Language Quiz

A fun 10-question quiz to find your love language.

Generators & Text Tools

Memory Test Online

Test your memory with a growing number sequence — how far can you go?

Generators & Text Tools

Meta Tag Generator

Build SEO title, description, Open Graph, and Twitter card tags in seconds, with a live search preview.

Generators & Text Tools

Metronome Online

Use this free metronome online to keep perfect time while you practise.

Generators & Text Tools

Mouse Test Online

Test your clicks per second (CPS) in 5 or 10 seconds.

Generators & Text Tools

NDA Generator

Create a non-disclosure agreement from your details and download it.

Generators & Text Tools

Nickname Generator

Generate cute, cool, or funny nicknames for anyone.

Generators & Text Tools

Numerology Calculator

Find your Life Path, Destiny, and Soul Urge numbers from name and birth date.

Generators & Text Tools

OTP Generator Online

Generate one-time passcodes of any length, securely in your browser.

Generators & Text Tools

Paragraph Counter

Count paragraphs, sentences, words, and characters instantly.

Generators & Text Tools

Passphrase Generator

Generate a strong, memorable passphrase from random words.

Generators & Text Tools

Pet Name Generator

Find the perfect name for your new best friend.

Generators & Text Tools

Pig Latin Translator

Translate English to Pig Latin and back, instantly.

Generators & Text Tools

PIN Generator

Generate secure random PIN codes of any length, with no repeats or sequences.

Generators & Text Tools

Pixel Art Generator

Draw pixel art on a grid and download it as a PNG.

Generators & Text Tools

Podcast Name Generator

Generate podcast name ideas by topic and tone.

Generators & Text Tools

Quotation Generator

Build a professional price quotation with line items, tax, and totals.

Generators & Text Tools

Random Animal Generator

Get a random animal with a fun fact for games and ideas.

Generators & Text Tools

Random Date Generator

Pick random dates between any two dates, in any format.

Generators & Text Tools

Random Emoji Generator

Generate random emojis by category, ready to copy.

Generators & Text Tools

Random Letter Generator

Generate random letters with vowel, case, and no-repeat options.

Generators & Text Tools

Random Paragraph Generator

Generate random paragraphs for mockups, writing practice, and testing.

Generators & Text Tools

Random Sentence Generator

Create random sentences in seconds.

Generators & Text Tools

Rap Name Generator

Get a rap stage name in classic, trap, or funny styles.

Generators & Text Tools

Reading Time Calculator

Find how long any text takes to read or speak aloud.

Generators & Text Tools

Receipt Generator

Build a clean, printable receipt with items, tax, and tip.

Generators & Text Tools

Remove Duplicate Lines

Paste your text, keep the first copy of each line, and copy or download the clean, unique list.

Generators & Text Tools

Remove Line Breaks

Remove line breaks from any text in seconds.

Generators & Text Tools

Rent Receipt Generator

Create a printable rent receipt with landlord, tenant, and amount.

Generators & Text Tools

Resignation Letter Generator

Write a professional resignation letter in minutes.

Generators & Text Tools

Restaurant Name Generator

Generate restaurant names by cuisine, from Italian to café.

Generators & Text Tools

Rhyming Words Finder

Type any word and get perfect and near rhymes instantly, with syllable and result-count filters.

Generators & Text Tools

Robots.txt Generator

Build a robots.txt file for your website in seconds with this free robots.txt generator.

Generators & Text Tools

Schema Markup Generator

Generate valid JSON-LD schema markup for your pages.

Generators & Text Tools

Sentence Counter

Count sentences, words, and characters in any text instantly.

Generators & Text Tools

SHA-1 Generator

Hash text or a file in your browser and get the 40-character SHA-1 checksum instantly.

Generators & Text Tools

Small Text Generator

Convert text to small caps or superscript tiny text.

Generators & Text Tools

Speaking Time Calculator

Find out how long your speech takes to say with this free speaking time calculator.

Generators & Text Tools

Strikethrough Text Generator

Cross out text with Unicode strikethrough, double strike, slash, or tilde styles.

Generators & Text Tools

Superhero Name Generator

Create a superhero name, alias, and power from your choices.

Generators & Text Tools

Team Name Generator

Generate fun, fierce, or professional team names in one click.

Generators & Text Tools

Town Name Generator

Generate town names for stories, games, and world-building.

Generators & Text Tools

UPC Barcode Generator

Create a scannable UPC-A barcode from 11 or 12 digits and download it as PNG.

Generators & Text Tools

Upside Down Text Generator

Flip your text upside down with Unicode characters.

Generators & Text Tools

URL Decoder

Decode percent-encoded URLs and encode text back, right in your browser.

Generators & Text Tools

vCard QR Code Generator

Make a QR code that shares your contact details.

Generators & Text Tools

Venn Diagram Maker

Build 2- or 3-circle Venn diagrams from your own sets and download them as PNG.

Generators & Text Tools

Villain Name Generator

Generate villain names in classic, sci-fi, fantasy, and modern styles.

Generators & Text Tools

Visiting Card Maker

Design a business visiting card and download it as a PNG.

Generators & Text Tools

Wedding Hashtag Generator

Create a wedding hashtag from your names and date.

Generators & Text Tools

Wedding Planner Printable

Plan your wedding with a 12-month checklist, budget tracker, and printout.

Generators & Text Tools

What Is My Browser

See your browser, version, operating system and screen details instantly.

Generators & Text Tools

Wide Text Generator

Convert text to wide fullwidth characters and back.

Generators & Text Tools

WiFi QR Code Generator

Make a QR code that connects any phone to your WiFi.

Generators & Text Tools

Writing Prompt Generator

Pick a genre and get an original story prompt with a character, setting, conflict, and twist.

Generators & Text Tools

Yes No Oracle

Ask a yes or no question and let the oracle decide.

Generators & Text Tools

YouTube Name Generator

Generate catchy YouTube channel name ideas by niche.

Generators & Text Tools

YouTube Thumbnail Size

Check your thumbnail is the right 1280×720 size and 16:9 ratio.

Generators & Text Tools

YouTube Title Generator

Generate clickable YouTube video titles for any topic.

Generators & Text Tools

Zalgo Text Generator

Turn plain text into creepy glitched zalgo text with adjustable intensity.

Health, Fitness & Education (66 tools)

Health, Fitness & Education

Baby Percentile Calculator

Check a baby's weight and height against WHO growth percentiles.

Health, Fitness & Education

Blood Pressure Calculator

Use this free blood pressure calculator to find what your reading means.

Health, Fitness & Education

Body Surface Area Calculator

Calculate body surface area with Mosteller, Du Bois, or Haycock.

Health, Fitness & Education

Caffeine Calculator

Estimate caffeine in your system from coffee, tea, and energy drinks.

Health, Fitness & Education

Child Height Predictor

Predict your child's adult height from parents' heights.

Health, Fitness & Education

Dog Food Calculator

Work out how much food your dog needs each day by weight and age.

Health, Fitness & Education

GPA to Percentage Calculator

Convert GPA to percentage for Indian and international grading scales.

Health, Fitness & Education

Keto Calculator

Use this free keto calculator to find your daily calories and keto macros in grams.

Health, Fitness & Education

Lean Body Mass Calculator

Find lean mass, body fat percentage, and fat mass from height and weight.

Health, Fitness & Education

Marathon Pace Calculator

Find your pace, splits and finish time for any race distance.

Health, Fitness & Education

Max Heart Rate Calculator

Find your maximum heart rate and training zones by age.

Health, Fitness & Education

Resting Heart Rate Calculator

Check your resting heart rate and what it means for fitness.

Health, Fitness & Education

Sleep Debt Calculator

Work out your sleep debt and a catch-up plan.

Health, Fitness & Education

Steps to Calories Calculator

Estimate calories burned from steps, weight, and pace.

Health, Fitness & Education

TDEE Calculator Online

Find your total daily energy expenditure and calorie targets.

Health, Fitness & Education

Test Score Calculator

Convert test marks into percentages, grades and GPA.

Health, Fitness & Education

VO2 Max Calculator

Estimate VO2 max from a walk test, run test, or resting heart rate.

Health, Fitness & Education

Water Intake Calculator

Find your daily water intake from weight and activity.

Health, Fitness & Education

Workout Plan Generator

Build a weekly training plan for muscle, strength, or weight loss.

Health, Fitness & Education

Blood Type Calculator

Find the possible blood types of a child from both parents' blood types.

Health, Fitness & Education

Cholesterol Calculator

Enter total cholesterol, HDL, LDL, and triglycerides in mg/dL or mmol/L to get your ratios, non-HDL cholesterol, and ATP III category.

Health, Fitness & Education

Period Calculator

Predict your next period and fertile window from your cycle.

Health, Fitness & Education

Stress Test Online

Answer 10 quick questions and get a stress score with coping tips.

Health, Fitness & Education

ACT Score Calculator

Turn four ACT section scores into your composite score.

Health, Fitness & Education

Alcohol Units Calculator

Work out the alcohol units and calories in your drinks.

Health, Fitness & Education

Anxiety Test Online

A 7-question self-check for anxiety symptoms over the past two weeks.

Health, Fitness & Education

Baby Gender Predictor

Predict your baby’s gender the fun way — Chinese calendar and Mayan methods.

Health, Fitness & Education

Body Fat Percentage Calculator

Estimate body fat with the US Navy method or a BMI estimate.

Health, Fitness & Education

Intermittent Fasting Calculator

Plan your fast with our free intermittent fasting calculator.

Health, Fitness & Education

SAT Score Calculator

Convert raw SAT section scores to the 400–1600 scale.

Health, Fitness & Education

Weight Loss Percentage Calculator

Track your weight-loss percentage and time to goal.

Health, Fitness & Education

BAC Calculator

Estimate blood alcohol content from drinks, weight, and time — with safety guidance.

Health, Fitness & Education

Bench Press Calculator

Estimate your one-rep max and training weights.

Health, Fitness & Education

GMAT Score Calculator

Estimate your GMAT total score from quant, verbal, and data insights.

Health, Fitness & Education

GRE Score Calculator

Convert old GRE scores (200–800) to the new 130–170 scale, with percentile estimates and total score.

Health, Fitness & Education

Bike Frame Size Calculator

Find your road, mountain, or hybrid frame size.

Health, Fitness & Education

Body Shape Calculator

Find your body shape from bust, waist, and hip measurements.

Health, Fitness & Education

Cat Calorie Calculator

Use this free cat calorie calculator to find how many calories your cat needs each day.

Health, Fitness & Education

Cycling Power Calculator

Estimate the watts needed to ride at any speed, weight and gradient.

Health, Fitness & Education

Breathing Exercise Timer

Guided breathing exercises with a visual timer.

Health, Fitness & Education

Deadlift Calculator

Estimate your one-rep max deadlift from any set.

Health, Fitness & Education

FFMI Calculator

Measure fat-free mass index and see where you stand.

Health, Fitness & Education

Fiber Intake Calculator

Enter your age, sex, and daily calories to get your recommended daily fiber in grams, plus high-fiber foods.

Health, Fitness & Education

Cat Pregnancy Calculator

Enter the mating date and get the expected due date, a 63–65 day window, and week-by-week milestones.

Health, Fitness & Education

Dog Pregnancy Calculator

Work out your dog's due date and whelping window.

Health, Fitness & Education

Face Shape Finder

Find your face shape from four simple measurements.

Health, Fitness & Education

Fantasy Points Calculator

Calculate fantasy points for NFL, NBA, MLB, and soccer.

Health, Fitness & Education

Fat Intake Calculator

Work out how many grams of fat to eat each day with our free fat intake calculator.

Health, Fitness & Education

Golf Handicap Calculator

Work out your WHS handicap index from your last 20 rounds.

Health, Fitness & Education

Hearing Test Online

Test your hearing range ear by ear with tones from 250 Hz to 8,000 Hz.

Health, Fitness & Education

Horse Feed Calculator

Work out daily hay, grain, and water for your horse by weight and workload.

Health, Fitness & Education

Horse Weight Calculator

Estimate a horse's weight from heart girth and body length.

Health, Fitness & Education

Interval Timer

A workout interval timer with work, rest, and rounds.

Health, Fitness & Education

Jet Lag Calculator

Estimate how long jet lag will last with our free jet lag calculator.

Health, Fitness & Education

LSAT Score Calculator

Estimate your LSAT scaled score from your raw score.

Health, Fitness & Education

Mental Age Calculator

Take a quick 10-question quiz and estimate your mental age.

Health, Fitness & Education

Metabolic Age Calculator

Estimate your metabolic age from BMR, age, and activity.

Health, Fitness & Education

Nap Calculator

Find the best nap start and wake times in sleep cycles.

Health, Fitness & Education

Pet Age Calculator

Convert your pet's age to human years.

Health, Fitness & Education

Reaction Time Test

Test your reaction time — click when the screen turns green.

Health, Fitness & Education

Screen Time Calculator

Track daily screen time across devices and compare with limits.

Health, Fitness & Education

Triathlon Pace Calculator

Plan your race time for Sprint, Olympic, Half Ironman or Full Ironman distances.

Health, Fitness & Education

Vision Test Online

Check your eyesight at home with a Snellen chart calibrated to your screen.

Health, Fitness & Education

Weighted GPA Calculator

Calculate your weighted and unweighted GPA from your courses.

Health, Fitness & Education

Wilks Calculator

Find your Wilks score from bodyweight and total lifted.

Health, Fitness & Education

Puppy Weight Calculator

Estimate your puppy's adult weight from its age and weight.

File & PDF Tools (42 tools)

File & PDF Tools

CSV to Excel Converter

Turn CSV files into real Excel spreadsheets, in your browser.

File & PDF Tools

CSV to XML Converter

Convert CSV data into XML, in your browser.

File & PDF Tools

DOCX to TXT Converter

Turn Word documents into clean plain text, in your browser.

File & PDF Tools

ICO to PNG Converter

Turn Windows icon files back into PNG images, in your browser.

File & PDF Tools

JPEG to PNG Converter

Turn JPG photos into lossless PNG images, right in your browser.

File & PDF Tools

JSON to CSV Converter

Convert JSON data into CSV spreadsheets, in your browser.

File & PDF Tools

PNG to ICO Converter

Turn any PNG into a Windows icon file, with transparency kept.

File & PDF Tools

PNG to JPG Converter

Convert PNG images to JPG format right in your browser.

File & PDF Tools

PNG to PDF Converter

Turn PNG images into a PDF, several images per page, right in your browser.

File & PDF Tools

PNG to WebP Converter

Convert PNG images to WebP, right in your browser.

File & PDF Tools

TXT to PDF Converter

Turn plain text into a real PDF file, right in your browser.

File & PDF Tools

Excel to CSV Converter

Convert Excel spreadsheets to CSV files with your choice of delimiter.

File & PDF Tools

YAML to JSON Converter

Convert YAML data to JSON instantly, in your browser.

File & PDF Tools

AVIF to JPG Converter

Convert AVIF images to JPG with a quality slider, in your browser.

File & PDF Tools

Blur Image Online

Blur an image with an adjustable slider and download the result.

File & PDF Tools

GIF to JPG Converter

Convert GIF images to JPG, PNG, or WebP in your browser.

File & PDF Tools

JSON to XML Converter

Free JSON to XML converter in your browser.

File & PDF Tools

CSV to PDF Converter

Turn a CSV file into a formatted PDF table in your browser.

File & PDF Tools

JSON to PDF Converter

Turn JSON data into a formatted PDF.

File & PDF Tools

Audio Joiner Online

This free audio joiner online merges two or more MP3 and WAV files into one audio file, right in your browser.

File & PDF Tools

BMP to JPG Converter

Convert BMP images to JPG with quality and resize controls.

File & PDF Tools

GIF to WebP Converter

Free GIF to WebP converter in your browser.

File & PDF Tools

Grayscale Image Converter

Turn any photo black and white in your browser and download the result.

File & PDF Tools

Image Color Extractor

Pull the dominant colours out of any image, with HEX and RGB values.

File & PDF Tools

Image Flipper

Flip an image horizontally or vertically in one click.

File & PDF Tools

Invert Image Colors

Flip any image into a photographic negative, right in your browser.

File & PDF Tools

JPG to AVIF Converter

Convert JPG images to the smaller AVIF format, free and in your browser.

File & PDF Tools

JSON to YAML Converter

Convert JSON to YAML in your browser.

File & PDF Tools

MP3 to WAV Converter

Convert MP3 audio to WAV files in your browser — no uploads.

File & PDF Tools

Photo Size Calculator

Find print size from photo pixels and DPI, or the pixels a print size needs.

File & PDF Tools

Pixelate Image

This free pixelate image tool turns a photo into big, chunky blocks of color in your browser.

File & PDF Tools

Rotate Image Online

Rotate any image 90°, 180°, or by a custom angle and download it.

File & PDF Tools

Round Image Corners

Free round image corners tool in your browser.

File & PDF Tools

SVG Compressor

Shrink SVG files by removing comments and extra precision.

File & PDF Tools

TSV to CSV Converter

Convert tab-separated data to CSV in your browser — paste or upload a file.

File & PDF Tools

WAV to MP3 Converter

Convert WAV audio to MP3 right in your browser.

File & PDF Tools

WebP to GIF Converter

Turn WebP images into GIFs without uploading anything.

File & PDF Tools

XML to CSV Converter

Turn XML data into a CSV spreadsheet in seconds.

File & PDF Tools

XML to JSON Converter

Convert XML data to JSON instantly, with validation.

File & PDF Tools

XML Validator

Check XML for errors and pretty-print it in your browser.

File & PDF Tools

YAML to XML Converter

Convert YAML to XML in your browser — paste or upload, no sign-up.

File & PDF Tools

SVG to JPG Converter

Turn SVG graphics into JPG images with a background colour of your choice.

Can't find what you need? Try the search box at the top of the homepage, or browse a category above — new tools are added regularly, and this list grows with them.