Grams to Cups: All-Purpose Flour
If your recipe is written in cups but your scale reads grams — or the other way round — this page solves the conversion for all-purpose flour. One cup of all-purpose flour weighs about 125 grams, which works out to a density of 0.53 g/ml. From there, half a cup is roughly 63 g, a quarter cup about 31 g, and one tablespoon about 8 g.
Converting between weight and volume depends on density, and density is specific to each ingredient: a cup of all-purpose flour does not weigh the same as a cup of flour or sugar. That is why this tool uses the measured density of all-purpose flour, taken from the USDA FoodData Central database, rather than a one-size-fits-all figure.
Cooking measurement converter — All-Purpose Flour
Result
0.8 cups
Common measures — All-Purpose Flour
| Measure | Grams |
|---|---|
| 1 cup | 125 g |
| ¾ cup | 94 g |
| ½ cup | 63 g |
| ⅓ cup | 42 g |
| ¼ cup | 31 g |
| 1 tbsp | 7.8 g |
| 1 tsp | 2.6 g |
Data source: USDA FoodData Central
How to measure all-purpose flour accurately
How you fill the cup matters a lot with all-purpose flour. Spoon it into the cup and level the top with the back of a knife. If you scoop the cup straight from the bag you compact the contents and can add up to 20% more weight than the recipe intends — a common reason baked goods turn out dense.
That is why weighing in grams is always more reliable than cups for precise baking. This page gives you the exact equivalence both ways, so you can use whichever method you prefer.
Frequently asked questions
How many grams are in a cup of all-purpose flour?
One cup of all-purpose flour weighs about 125 grams. Half a cup is roughly 63 grams and a quarter cup about 31 grams.
How many cups is 100 grams of all-purpose flour?
100 grams of all-purpose flour is about 0.80 cups. Use the calculator above for any other amount.
Where does this value come from?
From the ingredient's measured density (0.53 g/ml), referenced to the USDA FoodData Central database. Bear in mind the real weight can vary slightly with brand and moisture.
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