Units and conversions

Base units, your own units, and the one assumption the app makes between grams and millilitres.

Last updated: 2026-09-04

Grams, cups and pieces

Flour lives in grams, cream in millilitres, eggs in pieces. Every ingredient has a base unit. A recipe measures it in that unit or in any other unit it carries. The picker groups units by mass, volume and pieces. The ones you use most sit on the first tab. In Settings you choose grams and millilitres or ounces and cups.

  • Mass, volume and pieces
  • One base unit per ingredient
  • Extra units per ingredient
  • Metric or US system in Settings

Only the conversions you need

Your flour is priced by the kilo and one recipe measures it in cups. The ingredient asks a single question: “1 cup = ? g”. A note says whether price, nutrition or both depend on the answer. The section appears only when a calculation is blocked. It asks the fewest questions that connect every unit you use.

Your own units

A sachet of vanilla sugar, a tin of condensed milk, a slice of sponge: what the picker lacks, you create with “Create custom unit”. A weight or volume unit takes a symbol and how much of the base unit it holds. A piece unit needs only a name. It asks one conversion question the first time a calculation needs it.

The one assumption the app makes

Between weight and volume the app fills in 1 g = 1 ml on its own, in grey, instead of stopping. Cost and calories are computed through it. The recipe’s weight total shows as approximate, with a note naming what was assumed. Type the real figure when you know it and it wins. Milk sits close to water. Honey does not.

Not in the app

Two things the units do not do:

  • Look up densities for you; the dictionary fills nutrition, not the weight of a cup
  • Answer a conversion once for everyone; a cup of flour and a cup of sugar weigh differently

Common questions

Can I change an ingredient’s base unit later?

Yes, unless a recipe already measures it in that unit. The dialog names those recipes. Change the unit in them first, and the ingredient follows.