About Us

What is RupayaTools?

RupayaTools is a free set of online calculators built for everyone. We noticed most calculator websites are designed for a Western audience — dollar amounts, unfamiliar tax rules, and number formats that don't match how India counts. So we built a site where everything is in rupees, uses Indian digit grouping (lakh and crore), and follows the rules that actually apply here — from GST slabs to the Payment of Gratuity Act.

Our mission

Our mission is simple: give everyone fast, honest answers to everyday money and measurement questions — and ask for nothing in return. No sign-up, no paywalls, no app to install, no personal data collected. Salaried employee decoding a CTC offer? Homeowner estimating cement and bricks? First-time investor starting a SIP? You should get a reliable number in seconds — on any phone, on any connection.

What the tools cover

RupayaTools currently offers 57 free tools across these groups:

• Salary calculators — break down your CTC, estimate in-hand pay, work out gratuity and calculate HRA exemption.
• Construction calculators — estimate concrete, cement, sand, bricks and total project cost for Indian building sites.
• Finance calculators — project SIP growth, calculate loan EMIs, estimate FD and PPF maturity, measure investment returns, add or strip GST, and compare income tax under the old and new regimes.
• Unit converters — convert cm to feet, kg to pounds, land units (acre, marla, kanal, bigha, guntha) and more.
• Image & PDF tools — compress photos to exact KB targets, shrink PDFs, convert images, and generate UPI QR codes.
• Everyday utilities — convert numbers to words in Indian format, check your exact age, and solve percentage problems.

Privacy-first by design

RupayaTools is a static website. Every calculation happens in your own browser, on your own device. We set no cookies, run no analytics, and have no accounts or servers storing your inputs. What you type into a calculator stays on your device. Full details are in our privacy policy.

An honest note

Our calculators are planning tools, not professional advice. Tax rules change, interest rates move, and every personal situation is different. Treat results as estimates, and verify important decisions with a qualified professional. Please read our disclaimer before relying on any figure.

Spotted a mistake, or want a calculator we don't have yet? We'd love to hear from you on our contact page.