All-purpose flour conversion chart
| Food / method | Grams / US cup | Source portion |
|---|---|---|
| Wheat flour, white, all-purpose, unenriched · cup |
All-purpose flour: source and method comparison
1 US customary cup of all-purpose flour weighs approximately 125 grams.
US cup: 236.588 mL. The food form and measuring method affect its weight.
Default food reference: Wheat flour, white, all-purpose, unenriched
View the USDA food recordThe USDA unenriched all-purpose flour reference gives 125g per cup. King Arthur’s own chart uses 120g. This page keeps those references visible and lets you choose the one matching your recipe.
Recipe weights take priority
If a recipe states grams, use those grams. For a cup-only recipe, choose its source or brand where possible, fill consistently and level the measure. A source comparison is more useful than declaring one cup weight correct for every flour and method.
Common questions
Is one cup of flour 120g or 125g?
Both values appear in identified references on this page. King Arthur uses 120g; the selected USDA unenriched all-purpose reference uses 125g. Match the reference to your recipe.
Reference review: 12 October 2026. How we verify measurements. Report a measurement issue.