1 Cup of Flour in Grams
1 cup of all-purpose flour weighs 120 grams (about 4.2 oz), based on 120 g per US cup (spoon-and-level method). That's the same as 16 tablespoons of all-purpose flour. When a recipe's outcome depends on accuracy — especially baking — weigh it instead of measuring by cup.
One US cup is the reference every other fraction on this page derives from: 120 g of all-purpose flour (spoon-and-level method). Halve it for 60 g, double it for 240 g.
How much is 1 cup of all-purpose flour?
| Grams | 120 g |
|---|---|
| Ounces (weight) | 4.2 oz |
| Tablespoons | 16 tbsp |
| Teaspoons | 48 tsp |
| Density used | 120 g per US cup |
No 1 cup measure? Use spoons
1 cup is exactly 16 tablespoons, which is 120 g of all-purpose flour. Measuring spoons are stamped to a tighter tolerance than cups, so for small amounts the spoon route is usually the more accurate one even when you do own the cup.
Halving and doubling 1 cup
Scaling a recipe is the usual reason this conversion comes up, and grams scale cleanly where cup fractions do not:
| Recipe | Cups | Grams | Spoons |
|---|---|---|---|
| Half | ½ cup | 60 g | 8 tablespoons |
| As written | 1 cup | 120 g | 16 tablespoons |
| Double | 2 cups | 240 g | 32 tablespoons |
Nearby amounts
| Cups | Grams | Ounces |
|---|---|---|
| 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 |
Every cup fraction of flour in grams — the full chart.
How to measure 1 cup of 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.
1 cup of other ingredients
- 1 cup granulated sugar in grams — 200 g
- 1 cup powdered sugar in grams — 120 g
- 1 cup brown sugar (packed) in grams — 213 g
- 1 cup honey in grams — 340 g
- 1 cup butter in grams — 227 g
Convert another amount
250 cups All-purpose flour = 30000 g
Based on 120 g per US cup.
Reverse conversion: grams of flour to cups.
Density 120 g/cup — sources: King Arthur Baking ingredient weight chart, USDA FoodData Central. Data verified 2026-08-20. Methodology.