calculatorgate.com
Home
/Unit Price Calculator

Unit Price Calculator

Compare the price per ounce, pound, kilo, liter or item of different pack sizes and see which one is cheaper.

Last updated: October 29, 2026

What Is Unit Price and How Do You Calculate It?

Compare different pack sizes fairly

The unit price is the price of one standard amount of a product: per ounce, pound, kilogram, liter or item. It lets you compare packs of different sizes fairly. The formula: Unit price = price ÷ quantity. A 16 oz jar for $3.49 costs about $0.22 per ounce; a 32 oz jar for $5.99 costs about $0.19 per ounce, so the bigger jar is cheaper. To compare correctly: • Bring both products to the same unit. This calculator converts oz, lb, fl oz, g, kg, ml and L automatically. • Only compare like with like: weight with weight, volume with volume, items with items. • For canned food in liquid use the drained weight; for detergent and paper use the number of loads or sheets. Bigger isn't always cheaper. Sale prices on small packs, multi-buy deals and store brands often beat the large size, which is why many stores print the unit price on the shelf tag. A lower unit price only saves money if you use the product before it goes bad.

Frequently Asked Questions

Common questions about unit price

Divide the price by the quantity. For a 16 oz jar at $3.49: 3.49 ÷ 16 = about $0.22 per ounce. Before comparing, convert every product to the same unit (for example ounces).

Related Calculators

More tools for smarter shopping