How many grams are in 1 cup of all-purpose flour?

1 US cup of all-purpose flour weighs 120 grams (4.2 ounces). Spooned into the cup and leveled — scooping from the bag can add 20–30 g.

How many grams are in 2 cups of all-purpose flour?

2 US cups of all-purpose flour weigh 240 grams (8.5 ounces).

1 cup of all-purpose flour = 120 g (4.2 oz)

Spooned into the cup and leveled — scooping from the bag can add 20–30 g.

Ingredient

Amount

Unit

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grams

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ounces

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cups

Weights use the standard reference value of 120 g per US cup for all-purpose flour. For baking, weighing beats scooping every time.