2/3 Cup of Butter in Grams
2/3 cup of butter weighs 151 grams (about 5.3 oz), based on 227 g per US cup (level cup). That's the same as 10.7 tablespoons of butter. 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 (76 g each). Without a 1/3 measure either, 10 tablespoons + 2 teaspoons is exact.
How much is 2/3 cup of butter?
| Grams | 151 g |
|---|---|
| Ounces (weight) | 5.3 oz |
| Tablespoons | 10.7 tbsp |
| Teaspoons | 32 tsp |
| Density used | 227 g per US cup |
No 2/3 cup measure? Use spoons
2/3 cup is exactly 10 tablespoons + 2 teaspoons, which is 151 g of butter. 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 | 76 g | 5 tablespoons + 1 teaspoon |
| As written | ⅔ cup | 151 g | 10 tablespoons + 2 teaspoons |
| Double | 1 ⅓ cups | 303 g | 21 tablespoons + 1 teaspoon |
Nearby amounts
| Cups | Grams | Ounces |
|---|---|---|
| ⅓ cups | 76 g | 2.7 oz |
| ½ cups | 114 g | 4 oz |
| ⅔ cups | 151 g | 5.3 oz |
| ¾ cups | 170 g | 6 oz |
| 1 cup | 227 g | 8 oz |
Every cup fraction of butter in grams — the full chart.
How to measure 2/3 cup of butter
In the US, butter is easiest to measure by the wrapper: one stick is ½ cup = 8 tbsp = 113 g, and the wrapper is printed with tablespoon marks. For amounts that aren’t clean stick fractions, weigh it — cutting soft butter into a measuring cup traps air pockets.
2/3 cup of other ingredients
- 2/3 cup all-purpose flour in grams — 80 g
- 2/3 cup granulated sugar in grams — 133 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
Convert another amount
250 cups Butter = 56750 g
Based on 227 g per US cup.
Reverse conversion: grams of butter to cups.
Density 227 g/cup — sources: King Arthur Baking ingredient weight chart, USDA FoodData Central. Data verified 2026-08-20. Methodology.