Cups to Grams
How many grams a US cup of flour, sugar, butter, rice or another ingredient weighs — by USDA data
"Cups to Grams" Calculator
How to convert cups to grams
Worked example: 1/2 US cup of butter, level
1/2 cup × 227 g = 113.5 g
grams = cups × the weight of one US cup of the ingredient
level US cup, 236.6 ml · one US cup of butter weighs 227 g (USDA FoodData Central) · 1/2 metric cup (250 ml) would hold 119.9 g
Traps
- Packed or loose. A US cup of packed brown sugar weighs 220 g, loosely spooned 145 g; powdered sugar unsifted 120 g, sifted 100 g. Each state is its own choice in the form.
- US or metric cup. The metric cup of 250 ml (Australia, New Zealand, Canada) holds 5.7 % more than the US cup of 236.6 ml; nutrition labels use a “legal” cup of 240 ml.
- Water. 1 ml of water weighs 1 g, so one US cup of water weighs its volume, 236.6 g; every other liquid uses its own USDA weight.
Weights: USDA FoodData Central, SR Legacy; the US cup is 236.6 ml, the tablespoon 1/16 cup, the teaspoon 1/48 cup; water is counted from its volume.
See Also
- Grams to Cups - How many US cups a weight of flour, sugar, butter, rice or another ingredient fills — by USDA cup weights
- Cups to Ml - Convert Cups to Milliliters
- Ml to Cups - Convert Milliliters to Cups
- Cups to Tablespoons - Convert Cups to Tablespoons
- Oz to Grams - Convert Ounces to Grams
- Gallons to Pounds - How much a gallon of water, milk, gasoline, diesel, oil or propane weighs in pounds — by density
- Tablespoons to Grams - How many grams a US tablespoon of butter, sugar, flour, honey or another ingredient weighs — by USDA data
FAQ
How many grams are in a cup?
It depends on what is in the cup: a cup is a volume, and each ingredient packs a different weight into it. A US cup holds 125 grams of all-purpose flour, 200 grams of granulated sugar, 227 grams of butter and 236.6 grams of water.
How many grams is 1/2 cup of butter?
113.5 grams — half of the 227 grams a full US cup of butter weighs, which is one standard US stick of butter.
How do you convert cups to grams?
Multiply the cups by the weight of one cup of that ingredient. For 2 1/2 cups of flour that is 2.5 × 125 = 312.5 grams. Fractions work the same way: 1/3 cup is a third of the cup weight.
Why does my recipe give a different weight for a cup of flour?
Because flour is scooped, and how it is scooped changes the weight. This page uses the USDA figure of 125 grams per cup; King Arthur Baking uses 120 g for flour spooned in lightly, and flour packed down weighs more. For baking, weighing is always more exact than a cup.