Compatible units, one fair baseline

Compare price per kg, litre, metre, area, or item

Use the units printed on each package. Compatible measurements are normalized before prices are ranked.

One fair comparison

Package comparison

Use a dot for decimals. The API uses a deterministic DECIMAL128 calculation and displays six decimal places.
Package 1
Package 2

All packages must measure the same kind of thing. Multipack quantity is quantity × number of packs.