Unit price and price per kilo

In short: The unit price is the price per kilogram, litre or piece. It makes products in different pack sizes comparable.

In more detail: The German price indication ordinance requires retailers to state the unit price next to the selling price, usually per kilogram or litre (per 100 g or 100 ml for small quantities). It shows that a big pack is not always cheaper.

Our context: The product scanner calculates the price per kg or per litre from the typical price and the pack size.

In Depth

• Calculating: price ÷ quantity × reference quantity. €3.19 for 450 g is €7.09 per kg.
• Shrinkflation: The maker shrinks the pack at the same price. The unit price reveals it.
• Promotions: Discounts are only comparable at the same weight.
• Drained weight: For tins with liquid, the drained weight counts, not the filled weight.

See also: Open Food Facts