Flour Cups to Grams

The single most-searched ingredient conversion in baking — and the one where measuring technique (spooned vs. scooped) changes the answer more than people expect.

Result
125 g

Spooned vs. scooped — the 25% gap that ruins bakes

This is the single biggest source of inconsistent baking results, and it has nothing to do with the recipe — it's entirely about technique. Scooping a measuring cup directly into a bag or canister of flour compacts and packs the flour, typically yielding 156g or more per cup. Spooning flour lightly into the cup (fluffing it first, then spooning without pressing, then leveling with a straight edge) yields the lighter, more standard 125g per cup that most published recipes assume. That's a roughly 25% difference from measuring method alone — enough to make a cake dense and dry if you habitually scoop while the recipe was written and tested by someone who spoons.

Why flour type changes the number too

Bread flour is milled slightly differently and packs a bit denser than all-purpose; cake flour is milled finer and lighter, giving delicate cakes their characteristic tender crumb; whole wheat flour includes the bran and germ, making it noticeably denser per cup than refined white flour. If a recipe doesn't specify which flour or measuring method it assumes, "spooned all-purpose" (125g/cup) is the safest default most published recipes use.

Quick reference chart (all-purpose, spooned)

CupsGrams
¼ cup31g
⅓ cup42g
½ cup63g
1 cup125g
2 cups250g
4 cups500g

FAQ

Which method do most recipes assume? Spooned and leveled, unless stated otherwise — it's the standard baking-reference convention.

Is a kitchen scale more reliable than either cup method? Yes — weighing flour removes the measuring-technique variable entirely, which is why serious bakers increasingly favor gram measurements over cups for consistency.