Free browser tool
Unit price comparison calculator
Compare two pack sizes by the same unit and see which offers the lower price per quantity.
How to use this tool
Enter each pack’s final price and quantity using the same currency and measurement unit. For example, use grams for both packs, not grams for one and kilograms for the other. The result compares price ÷ quantity and the percentage difference. It does not account for waste, product quality, delivery fees or membership conditions unless you include them in the price.
Private by design
The calculation runs in your browser. There is no account requirement, input upload or subscription. Clear the fields when using a shared device.