Cooking Measurement Converter

Cups ↔ grams ↔ ml ↔ oz — with per-ingredient density for accuracy.

Edit any value — the others update. Volume ↔ weight conversion uses the selected ingredient density.

°C
°F
Gas mark

Standard cooking measurements

UnitVolume / weight
1 US cup240 ml (16 tbsp = 48 tsp)
1 tablespoon (US)15 ml (3 tsp)
1 teaspoon (US)5 ml
1 UK cup250 ml
1 US fl oz29.57 ml
1 UK fl oz28.41 ml
1 oz weight28.35 g
1 lb453.59 g

For baking — weigh, don't measure

The single biggest accuracy improvement in baking is switching from cups to grams. A "cup of flour" can be 100g to 160g depending on how you scoop. Weighing eliminates that 30-60% error.

Gas marks (UK ovens)

Roughly: gas mark 1 = 140°C / 275°F, gas mark 4 = 180°C / 350°F, gas mark 9 = 240°C / 475°F.

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