A bigger package is not always the better deal. Two brands of coffee, two bottles of detergent or two boxes of cereal often have different sizes and different prices, and the only fair way to compare them is by the price per unit. This calculator works that out instantly so you always buy the cheaper option.
Enter the total price and the quantity for each product, then pick the unit. The tool shows each product's unit price and highlights which one is the better deal, including how much you save in percentage.
What if the units differ? Compare only products with the same or convertible units, like g vs kg or ml vs L.
Why is unit price more reliable? It removes package-size differences so you compare like for like.
Is my data private? Yes. Calculations happen entirely in your browser.