Cups to Grams: All-purpose flour

One US cup of all-purpose flour weighs 120 grams when spooned & leveled. Every other measure is below, in both directions.

1 cup of all-purpose flour

120 g

≈ 4.23 oz · spooned & leveled

Data & method: Density from the King Arthur Baking ingredient weight chart. Every number is checked by an automated test against its source. How we calculate →

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 cups
100 g	⅚ cups
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 measured spooned & leveled. Volume measurement is sensitive to how the cup is filled — packing or scooping changes how much fits, which is why the same "1 cup" can vary noticeably between two bakers. A scale removes the variable entirely, and it is the reason professional recipes are written in weight.

Convert any amount

Preset to all-purpose flour — change the amount, units or ingredient to convert anything else.

Amount From To Ingredient

Result

120 g

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

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 & leveled. This follows the King Arthur Baking ingredient weight chart, 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 — this figure assumes spooned & leveled. Scooping straight from the bag compacts all-purpose flour and can add a noticeable amount of extra weight per cup, which is exactly why recipes written in grams are more repeatable.