All-Purpose Flour Weight Reference
All-purpose flour is the most commonly used flour in baking. Knowing its weight per cup is essential for consistent results. The standard weight is 120 grams (4.25 oz) per cup when measured using the spoon-and-level method.
Weight Reference
| Amount | Grams | Ounces |
|---|---|---|
| 1 tablespoon | 8 g | 0.28 oz |
| ¼ cup | 30 g | 1.06 oz |
| ⅓ cup | 40 g | 1.41 oz |
| ½ cup | 60 g | 2.12 oz |
| ⅔ cup | 80 g | 2.82 oz |
| ¾ cup | 90 g | 3.17 oz |
| 1 cup | 120 g | 4.25 oz |
| 2 cups | 240 g | 8.5 oz |
| 5 lb bag | 2268 g | 80 oz |
Common Equivalents
1 cup all-purpose flour = 120 g = 4.25 oz
1 pound of flour ≈ 3.6 cups
A 5-pound bag ≈ 18 cups
Measuring Notes
- Use the spoon-and-level method: spoon flour into the cup, then sweep a knife across the top.
- Do not scoop the cup into the flour bag — this packs the flour and can add 20–30% more.
- Sifted flour weighs less per cup (about 110 g) due to more air.
- For the best accuracy, use a digital kitchen scale.
FAQ
How much does 1 cup of flour weigh?+
1 cup of all-purpose flour weighs approximately 120 grams (4.25 ounces) when measured with the spoon-and-level method.
Why do different sources give different flour weights?+
Measurement method matters. Scooping can yield 140–160g per cup, while spoon-and-level gives about 120g. King Arthur Flour uses 120g; some older sources use 125g.
Related Ingredients
Bread Flour Weight Reference
Bread flour is slightly denser than all-purpose flour due to its higher protein content. One cup weighs about 127 grams (4.48 oz).
Cake Flour Weight Reference
Cake flour is lighter and finer than all-purpose flour, with lower protein content. One cup weighs about 114 grams (4 oz).
Whole Wheat Flour Weight Reference
Whole wheat flour is slightly heavier than all-purpose flour because it includes the bran and germ. One cup weighs about 128 grams (4.5 oz).