How many grams in a cup of bread flour?
1 cup of bread flour weighs 137 g.1 tablespoon: 8.6 g1 teaspoon: 2.9 g
Weights are for bread flour (unsifted), in US customary cups.
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= 137 g
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Cups to grams
| Cups | Grams |
|---|---|
| ⅛ cup | 17 g |
| ¼ cup | 34 g |
| ⅓ cup | 46 g |
| ½ cup | 69 g |
| ⅔ cup | 91 g |
| ¾ cup | 103 g |
| 1 cup | 137 g |
| 1 ½ cups | 206 g |
| 2 cups | 274 g |
| 3 cups | 411 g |
Grams to cups
| Grams | US measure |
|---|---|
| 25 g | ≈ 3 tbsp |
| 50 g | ≈ ⅜ cup |
| 100 g | ≈ ¾ cup |
| 150 g | ≈ 1 ⅛ cups |
| 200 g | ≈ 1 ¼ cups + 3 tbsp |
| 250 g | 1 ¾ cups + 1 tbsp |
| 500 g | 3 ⅝ cups |
| 1,000 g | 7 ¼ cups + 1 tbsp |
Rounded to amounts you can measure; ≈ marks a rounded answer.
Measuring bread flour
How the cup is filled changes the weight more than the type of flour does.
These weights are for bread flour (unsifted). A different form, or a cup filled another way, weighs differently, so weigh it if the recipe gives grams.
The King Arthur Baking ingredient weight chart gives 120 g per cup. Lower figure reflects a lightly filled cup. We use the USDA figure throughout.
Source
USDA FoodData Central, food 168896: “Wheat flour, white, bread, enriched”, 1 cup = 137 g (USDA FoodData Central SR Legacy, April 2018). Other amounts are calculated with 1 cup = 16 tablespoons = 48 teaspoons. Data version 2026-10-17.1, reviewed 16 October 2026.
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