Price Per Unit Calculator
The big box isn't always the better deal. Compare honestly.
Option A
Option B
Option A per unit:
Option B per unit:
Better deal:
How to use this calculator
Enter the price and package size for two options, then press Compare. Price per unit for each and the better deal are shown.
What the result means
Price per unit normalizes different package sizes so you're comparing the same thing. The bigger box isn't always the better deal.
Frequently asked questions
What unit should I use?
Any consistent unit works — ounces, grams, items. Just use the same unit for both options.
Are bigger packages always cheaper per unit?
Often, but not always. Volume discounts vary by brand and store — always check.