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Unit Price Calculator

Compare two or three products by their true cost per unit — per ounce, per load, per roll, per item. The cheapest per unit is highlighted automatically.

Compare prices

enter price & size
enter price & size
enter price & size

Use the same unit in each box (all ounces, or all loads). Nothing is saved or sent anywhere — it runs entirely in your browser.

How to use unit price to save money

The unit price is the price per standard amount — per ounce, per load, per roll. Comparing unit prices (instead of the sticker price) is the single fastest way to tell which package is really the better deal, because pack sizes are designed to be hard to compare at a glance.

Enter the price and the size or count for each option above. We divide one by the other and highlight the lowest cost per unit. Tip: the "family" or "bulk" size is not always cheaper per unit — checking is the whole point.

Frequently asked questions

What is unit price?
Unit price is the cost per standard amount — per ounce, per load, per roll, per item — instead of the total package price. It lets you compare two different-sized packages fairly.
How do I calculate unit price?
Divide the price by the size or count. For example, $12 for 64 loads is $0.1875 per load. This calculator does it for you and tells you which option wins.
Is the bigger package always cheaper per unit?
No — that's the trap. "Bulk" and "family" sizes are sometimes priced higher per unit than the standard size. Always check the unit price before assuming bigger is cheaper.