Compare two grocery packages by price per ounce, pound, count or another matching unit. This free unit-price calculator helps you see past the package price when deciding which size offers better value.
How to use this calculator
Enter the price and quantity for Item A and Item B. Use the same measurement unit for both: convert pounds to ounces first if needed. Compare equivalent products and check whether you will use the whole package.
Which One Is Cheaper?
Compare two packages by ounce, pound, count or any matching grocery unit.
Calculations run in your browser. Values are not saved by this calculator. No signup required.
A worked example
A $4 package containing 16 ounces costs $0.25 per ounce. A $6 package containing 32 ounces costs $0.1875 per ounce. The second package costs less per ounce even though its package price is higher.
The calculation: Unit price = package price ÷ quantity. The lower unit price is cheaper per unit.
Is the cheaper unit price always the best purchase?
Not always. Quality, storage space, available cash and likely waste still matter. Unit prices are rounded for display, so very small differences may look equal. The calculator compares your entered figures, not current store prices.
Put the result into practice
Print a grocery price tracker →
Ask Professor Cheap for ideas to help you plan your next step. For current prices and purchase terms, check the retailer.