How Many Grams in a Cup of All-Purpose Flour?

1 cup of all-purpose flour weighs 120 grams, spooned into the cup and leveled. Every other measure is below, in both directions.

1 cup of all-purpose flour

120 g

≈ 4.23 oz · spooned & leveled

Data & method: From the King Arthur Baking ingredient weight chart. An automated test pins the figure to that published source. How we calculate →

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Amount From To Ingredient

Result

120 g

All-purpose flour: 120 g per cup (spooned & leveled)

Recipe now in grams? Next: scale it to your batch →

All-Purpose Flour: cups to grams chart

All-purpose flour	Grams	Ounces
¼ cup	30 g	1.06 oz
⅓ cup	40 g	1.41 oz
½ cup	60 g	2.12 oz
⅔ cup	80 g	2.82 oz
¾ cup	90 g	3.17 oz
1 cup	120 g	4.23 oz
1½ cups	180 g	6.35 oz
2 cups	240 g	8.47 oz
3 cups	360 g	12.7 oz
1 tablespoon	7.5 g	0.26 oz
1 teaspoon	2.5 g	0.09 oz

Grams to cups: all-purpose flour

Working the other way — a recipe in grams, and cups are what you have in the drawer:

Grams of all-purpose flour	Cups (approx.)
50 g	0.42 cup
100 g	⅚ cup
125 g	1.04 cups
200 g	1⅔ cups
250 g	2.08 cups
500 g	4⅙ cups

Why the measuring method matters

The 120 g figure assumes all-purpose flour spooned into the cup and leveled. Scooping the cup straight into the bag compacts all-purpose flour and adds weight — King Arthur says a compacted cup of all-purpose flour can hold up to 160 g. That is why recipes written in grams are more repeatable. A scale removes the variable entirely, and it is the reason professional recipes are written in weight.

Other flours & dry bases

See the full CrumbCalc ingredient weight chart →

Frequently Asked Questions

How many grams is 1 cup of all-purpose flour?

One US cup of all-purpose flour weighs 120 grams (about 4.23 ounces), measured spooned into the cup and leveled. This is the King Arthur Baking ingredient weight chart figure, the reference most US test kitchens use.

How many grams is a tablespoon of all-purpose flour?

A tablespoon of all-purpose flour is about 7.5 grams, since one cup holds 16 tablespoons. A teaspoon is about 2.5 grams.

How many cups is 250 g of all-purpose flour?

250 grams of all-purpose flour is about 2.08 cups (250 ÷ 120). Weighing is more reliable than measuring by cup, because how you fill the cup changes the amount.

Does how I measure all-purpose flour change the weight?

Yes — the 120 g figure assumes all-purpose flour spooned into the cup and leveled. Scooping the cup straight into the bag compacts all-purpose flour and adds weight — King Arthur says a compacted cup of all-purpose flour can hold up to 160 g. That is why recipes written in grams are more repeatable.