Unit Price Calculator — Compare Price per 100g/100ml
CalculatorA unit price calculator divides price by quantity for two products and tells you which one costs less per 100 units (g, ml, or count).
What is it
The unit price converts package prices to the same quantity basis, like the “per 100g” labels on store shelves. Dividing price by quantity shows whether the bulk or the small package is actually the better deal. Any unit works — grams, milliliters, sheets, or counts — as long as both products use the same unit.
unit price = price ÷ quantity; price per 100 units = price ÷ quantity × 100
How to use
- 1Enter the price and quantity of product A.
- 2Enter the price and quantity of product B in the same unit.
- 3Check the per-100-unit prices, the cheaper product, and the difference.
Reference
| Product | Price | Per 100ml | Verdict |
|---|---|---|---|
| A shampoo 500ml | 4500 | 900 | — |
| B shampoo 1,000ml | 7900 | 790 | B is about 12% cheaper |
Sources & standards
FAQ
Which is cheaper: 500ml for 4,500 or 1L for 7,900?
The prices per 100ml are 900 and 790, so the 1L product is about 12% cheaper.
Can I compare products with different units?
No. Both quantities must use the same unit. If one is in kg and the other in g, convert first (1kg = 1,000g) and enter both in the same unit.
Is unit price calculator input sent to a server?
No. This tool runs in your browser and does not send input to a server.