2/3 Cup of Sugar in Grams
2/3 cup of granulated sugar weighs 133 grams (about 4.7 oz), based on 200 g per US cup (level cup). That's the same as 10.7 tablespoons of granulated sugar. When a recipe's outcome depends on accuracy — especially baking — weigh it instead of measuring by cup.
Few measuring sets include a 2/3 cup, so this is normally 2 × 1/3 cup (67 g each). Without a 1/3 measure either, 10 tablespoons + 2 teaspoons is exact.
How much is 2/3 cup of granulated sugar?
| Grams | 133 g |
|---|---|
| Ounces (weight) | 4.7 oz |
| Tablespoons | 10.7 tbsp |
| Teaspoons | 32 tsp |
| Density used | 200 g per US cup |
No 2/3 cup measure? Use spoons
2/3 cup is exactly 10 tablespoons + 2 teaspoons, which is 133 g of granulated sugar. 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 2/3 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 | ⅓ cup | 67 g | 5 tablespoons + 1 teaspoon |
| As written | ⅔ cup | 133 g | 10 tablespoons + 2 teaspoons |
| Double | 1 ⅓ cups | 267 g | 21 tablespoons + 1 teaspoon |
Nearby amounts
| Cups | Grams | Ounces |
|---|---|---|
| ⅓ cups | 67 g | 2.4 oz |
| ½ cups | 100 g | 3.5 oz |
| ⅔ cups | 133 g | 4.7 oz |
| ¾ cups | 150 g | 5.3 oz |
| 1 cup | 200 g | 7.1 oz |
Every cup fraction of sugar in grams — the full chart.
How to measure 2/3 cup of granulated sugar
Granulated sugar flows evenly, so scoop-and-level is fine — it settles to nearly the same weight however you fill the cup. That makes sugar the most forgiving ingredient to measure by volume; a level cup is 200 g within a gram or two.
2/3 cup of other ingredients
- 2/3 cup all-purpose flour in grams — 80 g
- 2/3 cup powdered sugar in grams — 80 g
- 2/3 cup brown sugar (packed) in grams — 142 g
- 2/3 cup honey in grams — 227 g
- 2/3 cup butter in grams — 151 g
Convert another amount
250 cups Granulated sugar = 50000 g
Based on 200 g per US cup.
Reverse conversion: grams of sugar to cups.
Density 200 g/cup — sources: USDA FoodData Central, King Arthur Baking ingredient weight chart. Data verified 2026-08-20. Methodology.