Unit Price Calculator
Stop guessing at the kirana shop — compare two packs by their real per-unit price.
Better deal
Price per unit
How to use it
- Enter Pack A price and quantity (e.g. ₹120 for 500 g).
- Enter Pack B price and quantity.
- Set the unit name (g, ml, pcs) — the tool shows which pack is cheaper per unit.
The formula
Unit price = pack price ÷ pack quantity. Compare the two unit prices — lower wins. Example: ₹120/500 g = ₹0.24/g vs ₹210/1000 g = ₹0.21/g → the 1 kg pack wins.
Beat the marketing
Brands love "family packs" that cost more per gram than the small pack, and "combo offers" with filler quantities. BigBazaar-style shelf tags show per-unit rates, but kirana shops and quick-commerce apps often don't. Thirty seconds here can save real money every month.
Frequently asked questions
How do I know which pack is cheaper?
Divide each pack's price by its quantity — the lower per-unit price wins. This tool does it for you.
Is the bigger pack always cheaper?
No! Sometimes the small pack has the better per-unit rate. Always compare.
What unit should I use?
Whatever is on the label — grams for atta, ml for oil, pieces for diapers. Just use the same unit for both packs.
Does this work for services too?
Yes — compare data plans (₹/GB), print shops (₹/page) or anything sold in two sizes.