Grams of Flour to Cups
One US cup of all-purpose flour weighs 120 grams with the spoon-and-level method. To convert grams of all-purpose flour to cups, divide the grams by 120 — so 100 g is ⅞ cup and 120 g is exactly 1 cup.
250 g All-purpose flour = 2 ⅛ cups
Exactly 2.08 cups — or measure 2 cups + 1 tbsp.
Flour cups-to-grams chart
| Cups | Grams | Ounces |
|---|---|---|
| ¼ cups | 30 g | 1.1 oz |
| ⅓ cups | 40 g | 1.4 oz |
| ½ cups | 60 g | 2.1 oz |
| ⅔ cups | 80 g | 2.8 oz |
| ¾ cups | 90 g | 3.2 oz |
| 1 cup | 120 g | 4.2 oz |
| 1½ cups | 180 g | 6.3 oz |
| 2 cups | 240 g | 8.5 oz |
How to measure all-purpose flour
Spoon flour into the cup with a spoon, then level the top with a straight edge — never scoop the cup into the bag. Scooping compresses flour and can pack in 20–30% more (140 g+ instead of 120 g), which is the single most common reason baked goods turn out dry. Sifted flour runs lighter still, about 110 g per cup.
Grams of flour to cups — every amount
- 50 g to cups — ⅜ cup
- 100 g to cups — ⅞ cup
- 125 g to cups — 1 cup
- 150 g to cups — 1 ¼ cups
- 200 g to cups — 1 ⅔ cups
- 250 g to cups — 2 ⅛ cups
- 300 g to cups — 2 ½ cups
- 400 g to cups — 3 ⅓ cups
- 500 g to cups — 4 ⅛ cups
Other ingredients
- Grams of sugar to cups
- Grams of powdered sugar to cups
- Grams of brown sugar to cups
- Grams of honey to cups
- Grams of butter to cups
- Grams of milk to cups
- Grams of rice to cups
- Grams of oats to cups
- Grams of chocolate chips to cups
- Grams of cocoa powder to cups
- Grams of water to cups
Density 120 g/cup — sources: King Arthur Baking ingredient weight chart, USDA FoodData Central. Data verified 2026-08-20. Methodology.