Unit price calculator (which is cheaper)
Compare two products by unit price (kg, liter, item) and see which is the better deal.
Better deal
Product B
Unit price A$0.02
Unit price B$0.02
You save10%
Use the same unit for both (e.g. grams for A and B).
How the calculation works
Unit price is price ÷ quantity. The product with the lower unit price is the better deal, even if its total price is higher.
Frequently asked questions
Is the bigger pack always cheaper?
Not always — that is why you compare the unit price.
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Updated on June 18, 2026 · by Rafael Rossi · Methodology & sources