Unit Price Calculator
Compare two products by their true price per unit to see which is the better deal.
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Formula
About this calculator
Stores often package the same product in different sizes, making it hard to tell which is actually cheaper. This calculator divides each product's price by its quantity to give the price per unit, then highlights the better value. Always enter both quantities in the same unit — grams, millilitres, sheets or individual items.
The lower price per unit is the better deal for that quantity, but remember to factor in whether you will actually use the larger pack before it spoils or expires. A lower unit price on a bulk size is only a saving if nothing goes to waste.
Frequently asked questions
Divide the total price by the quantity. The product with the smaller result costs less per gram, millilitre or item.
Usually, but not always — compare the unit prices. And only buy bulk if you will use it before it goes off.
Any unit works as long as both products use the same one, such as grams, millilitres or number of items.
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