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Cups to Grams Converter

All-purpose flour is 120 g per US cup (Spooned and levelled, not scooped.). A US cup is 240 ml, so grams scale with cup size. UK and Australian cups are larger than the US legal cup of 240 ml.

Quick Summary & Direct Answer
Kitchen

How many grams are in a cup of all-purpose flour?

One US cup of all-purpose flour is 120 g. A UK cup (284 ml) is 142 g. Spooned and levelled, not scooped.

Key Takeaways

  • Spoon-and-level flour is 120 g per US cup, not 150 g scooped.
  • Butter is 227 g per US cup (two sticks).
  • Rice figures are for uncooked grain.
  • Weighing beats cups for bread dough.
butterfloursugarrice

1 cup

120 g

120 g1 cups
g per cup120
ml240

Results can be wrong. This calculator is unofficial. Figures can be incomplete, rounded, or not updated. Use them at your own risk and check a tape, datasheet, ball band, or official chart before cutting, mixing, buying, or publishing. Limits of liability are in the terms of service.

Frequently asked questions

120 g per US cup. Spooned and levelled, not scooped.

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Publisher notes · reviewed 29 October 2026

Each ingredient has its own grams per US cup

US legal cup is 240 ml. UK 284 ml and Australian 250 ml scale that density. All-purpose flour is 120 g spooned and levelled. Butter is 227 g (two sticks). Uncooked rice is 185 g.

Scooped flour

Scooping packs flour toward 140–150 g. This page uses spoon-and-level 120 g.

Worked examples

  • 1 US cup flour

    120 g. 1 UK cup is 142 g at the same density.

Limits of this page

  • Cooked rice is not the uncooked figure.
  • Brown sugar is packed; granulated is not.

Sources