All-purpose Flour Cups to Grams

Updated: March 1, 2026 · Source: King Arthur Baking – Ingredient Weight Chart (All-purpose Flour: 1 cup = 120 g)

Snapshot

1 cup of all-purpose flour equals 120 grams. Conversion Encyclopedia keeps one fixed ingredient basis on this page so the calculator, common values, and reverse page stay aligned.

  • Reference basis: 120 g per 1 US cup.
  • Example: 2 cups = 240 g.
  • Source basis: King Arthur Baking – Ingredient Weight Chart.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Converter Calculator

120 Grams

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120 grams

With 1 cup of All-purpose Flour, that equals 120 grams.

Explanation

Use this page when a recipe gives all-purpose flour in cups and you need a repeatable gram target. The converter keeps the assumption explicit: 1 level US cup of all-purpose flour = 120 grams.

That makes recipe scaling easier without switching between inconsistent cup charts. The page stays anchored to the US cup standard (236.588 mL). This basis assumes the common spoon-and-level method, where flour is spooned into the cup and leveled rather than packed down.

Method & Cup Basis

  • Method basis: cup-to-weight conversion anchored to the US customary cup (≈236.6 mL).
  • Applied formula: grams = cups × 120.
  • Consistency rule: snapshot, calculator, FAQ, and table use the same ingredient-specific basis.
  • Source: King Arthur Baking – Ingredient Weight Chart (All-purpose Flour: 1 cup = 120 g)

Common Conversion Values

CupGrams
1/4 30
1/3 40
1/2 60
1 120
1 1/2 180
2 240
3 360

Frequently Asked Questions

How many grams are in 1 cup of All-purpose Flour?

1 level US cup of All-purpose Flour weighs 120 grams in this converter.

Does this use a US cup?

Yes. The factor is tied to the US cup definition (236.588 mL), not a metric cup.

Do scoop style or settling change the result for All-purpose Flour?

All-purpose Flour keeps one spoon-and-level reference basis here, but scoop style, aeration, and settling can change practical density. Spooned, packed, and sifted flour do not weigh the same by volume.

How many grams are in 2 cups of All-purpose Flour?

2 cups of All-purpose Flour are 240 g using 120 g per cup.

How do I convert All-purpose Flour grams back to cups?

Use the mirror Grams To Cups page; divide grams by 120 to return cups.