Cups of flour to grams converter
The ingredient is set to all-purpose flour. Type a value in either box, and the answer shows it in the other unit as you type.
- Grams (g)
- 125
1 cup = 125 g (All-purpose flour, 125 g per cup).
Grams (g): 125. 1 cup = 125 g (All-purpose flour, 125 g per cup).
Grams (g) by cups (cup)
How to calculate
Converts cups of flour to grams and back, from the weight of 1 cup (all-purpose flour: 125 g).
Example with the default inputs (Cups (cup) 1, Ingredient All-purpose flour, 125 g per cup): 1 cup = 125 g (All-purpose flour, 125 g per cup).
Formula: grams = cups × 125, where grams per cup depends on the ingredient (all-purpose flour: 125 g)
- Grams per cup are USDA FoodData Central (SR Legacy) portion weights for one level US cup (8 US fluid ounces): all-purpose flour 125 g (FDC 168894), granulated sugar 200 g (FDC 169655), brown sugar, packed 220 g (FDC 168833), powdered sugar, unsifted 120 g (FDC 169656), whole milk 244 g (FDC 171265), butter 227 g (FDC 173410), olive oil 216 g (FDC 171413), honey 339 g (FDC 169640), white rice, uncooked 185 g (FDC 169756).
- Water is pure water: 0.999975 kg per liter at 4 °C and 0.998207 kg per liter at 20 °C, from the Tanaka et al. (2001) density formula.
- How you fill the cup changes the weight: packed, sifted, or scooped flour can differ by 20% or more.
- The answer shows at most 6 decimal places (6 significant digits below 0.0001), rounded half up; the calculation keeps full precision.
Worked examples
Each example is checked against the calculator on every build.
- Cups (cup) 1, Ingredient All-purpose flour, 125 g per cup gives Grams (g) 125.Source: USDA FoodData Central SR Legacy 168894: 1 cup = 125 g
- Cups (cup) 2, Ingredient Granulated sugar, 200 g per cup gives Grams (g) 400.Source: USDA FoodData Central SR Legacy 169655: 1 cup = 200 g
Other questions people ask
How many grams are in a cup of flour?
125 grams: USDA FoodData Central lists 1 level US cup at 125 g (all-purpose flour, FDC 168894). So 1/2 cup is 62.5 grams, and 2 cups is 250 grams.
How do I convert cups of flour to grams?
grams = cups × 125, where grams per cup depends on the ingredient (all-purpose flour: 125 g). For example, 2 cups of flour is 250 grams.
Why does my cup of flour weigh a different amount?
Flour packs down. Spooned and levelled flour weighs about 125 g a cup, but a scooped or packed cup can weigh 20% more. For baking, weighing is more accurate than measuring by volume.
How many grams is 1 cup of another ingredient?
It depends on the ingredient, because a volume does not fix the weight. 1 cup is about, in grams: granulated sugar 200; brown sugar, packed 220; powdered sugar, unsifted 120; water at 4 °C 236.6; water at 20 °C 236.2; whole milk 244; butter 227; olive oil 216; honey 339; white rice, uncooked 185. Pick the ingredient in the converter for its exact answer.