Kitchen conversions

How many grams in a cup of flour?

One cup of all-purpose flour weighs about 125 grams, bread flour about 137 grams and whole wheat flour about 120 grams (USDA FoodData Central).

Flour: grams per measure
Measure	All-purpose flour	Bread flour	Whole wheat flour
¼ cup	31 g	34 g	30 g
⅓ cup	42 g	46 g	40 g
½ cup	63 g	69 g	60 g
⅔ cup	83 g	91 g	80 g
¾ cup	94 g	103 g	90 g
1 cup	125 g	137 g	120 g
1 ½ cups	188 g	206 g	180 g
2 cups	250 g	274 g	240 g
3 cups	375 g	411 g	360 g
4 cups	500 g	548 g	480 g
1 tablespoon	7.8 g	8.6 g	7.5 g
1 teaspoon	2.6 g	2.9 g	2.5 g

How to measure flour by the cup

Stir or whisk the flour in its bag or bin to loosen it.
Spoon it into the measuring cup until it mounds over the top. Don't tap or shake the cup.
Sweep the top level with the back of a knife.
Scooping the cup straight into the bag packs flour down and can add a lot more than the recipe meant; a scale avoids the question.

And 72 more recipes.

On these recipes, cup measures show the weight in grams next to the ingredient.