Assayhouse · Free tool

Unit price calculator

Pack sizes are not standardized, so shelf prices are often not comparable. Enter two or three products of the same type and see the price per 100 ml or per 100 g. Everything stays on your device.

Weight and volume are never compared with each other: a per-ml figure and a per-gram figure are different things.

A lower price per 100 ml or 100 g says nothing about quality, concentration, or how much of the pack you will actually use.

Educational material about labelling. Makes no purchase recommendation and names no brands. Nothing you type here is sent or stored. The Field Guides explain why the rate, not the price, is the comparison that works: see the six volumes.
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