1/3 Cup of Sugar in Grams
1/3 cup of granulated sugar weighs 67 grams (about 2.4 oz), based on 200 g per US cup (level cup). That's the same as 5.3 tablespoons of granulated sugar. When a recipe's outcome depends on accuracy — especially baking — weigh it instead of measuring by cup.
Sugar — all cup fractions in grams
| Cups | Grams | Ounces |
|---|---|---|
| ¼ cups | 50 g | 1.8 oz |
| 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 |
| 1½ cups | 300 g | 10.6 oz |
| 2 cups | 400 g | 14.1 oz |
How to measure 1/3 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.
1/3 cup of other ingredients
- 1/3 cup all-purpose flour in grams — 40 g
- 1/3 cup powdered sugar in grams — 40 g
- 1/3 cup brown sugar (packed) in grams — 71 g
- 1/3 cup honey in grams — 113 g
- 1/3 cup butter in grams — 76 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.