Cups to Grams Converter for Baking (Flour, Sugar, Butter)

Common baking conversions

Grams for the most used baking ingredients, rounded to the nearest gram.

Ingredient	1 cup	3/4 cup	2/3 cup	1/2 cup	1/3 cup	1/4 cup
All-purpose flour	120 g	90 g	80 g	60 g	40 g	30 g
Granulated sugar	198 g	149 g	132 g	99 g	66 g	50 g
Brown sugar, packed	213 g	160 g	142 g	107 g	71 g	53 g
Powdered (confectioners') sugar	113 g	85 g	75 g	57 g	38 g	28 g
Butter	226 g	170 g	151 g	113 g	75 g	57 g
Milk	227 g	170 g	151 g	114 g	76 g	57 g
Vegetable oil	198 g	149 g	132 g	99 g	66 g	50 g
Cocoa powder, unsweetened	84 g	63 g	56 g	42 g	28 g	21 g
Rolled oats	113 g	85 g	75 g	57 g	38 g	28 g
Chocolate chips	170 g	128 g	113 g	85 g	57 g	43 g

Why bakers weigh ingredients

The same cup of flour can weigh anywhere from about 110 to 150 grams depending on how it is filled. That difference is the most common reason cookies spread too much or cakes turn out dry. A digital scale removes the guesswork and means fewer dishes, since you can measure everything into one bowl.

Useful spoon measures

1 cup = 16 tablespoons = 48 teaspoons
1 tablespoon = 3 teaspoons
1 US cup = 236.6 milliliters
1 ounce (weight) = 28.35 grams

Weights based on the King Arthur Baking ingredient weight chart.

Frequently asked questions

How many grams is 1 cup of flour?

One cup of all-purpose flour weighs about 120 grams when it is spooned into the cup and leveled. Scooping straight from the bag can pack in 140 g or more.

How many grams is 1 cup of sugar?

One cup of granulated sugar weighs about 198 grams. Packed brown sugar is heavier at about 213 grams, and powdered sugar is lighter at about 113 grams.

How many grams is a stick of butter?

One US stick of butter is 1/2 cup, or 8 tablespoons, and weighs 113 grams.

Why does one cup weigh differently for each ingredient?

A cup measures volume, not weight. Dense ingredients like honey weigh far more per cup than light ones like flour or cocoa, so you need an ingredient-specific conversion.

Where do these numbers come from?

The weights follow King Arthur Baking's published ingredient weight chart, a widely used baking reference. That chart rounds 1 cup of water or milk to 227 grams.