Two-Thirds Cup of Granulated Sugar in Grams
2/3 cup of granulated sugar weighs 133.33g (4.7 oz, 160ml) according to USDA FoodData Central (1 cup granulated sugar = 200g, spooned and leveled method). 2/3 cup = 0.6667 of a full cup (240ml). See the full conversion table below for all amounts from 1 tablespoon to 3 cups.
Granulated Sugar Cup-to-Gram Conversion Table
Full range from 1 tablespoon to 3 cups. The highlighted row shows 2/3 cup.
| Amount | Grams |
|---|---|
| 1 tbsp | 12.5g |
| 2 tbsp | 25g |
| 1/8 cup | 25g |
| 1/4 cup | 50g |
| 1/3 cup | 66.67g |
| 1/2 cup | 100g |
| 2/3 cupthis page | 133.33g |
| 3/4 cup | 150g |
| 1 cup | 200g |
| 1 1/4 cups | 250g |
| 1 1/2 cups | 300g |
| 1 3/4 cups | 350g |
| 2 cups | 400g |
| 2 1/2 cups | 500g |
| 3 cups | 600g |
Source: USDA FoodData Central (FDC ID: 19335). 1 US cup = 240ml. Values use spooned-and-leveled method.
2/3 Cup of Different Ingredients — Weight Comparison
2/3 cup of different ingredients varies widely in weight because each has a different density. This matters when substituting ingredients in recipes.
| Ingredient | 2/3 Cup (g) |
|---|---|
| Powdered Sugar | 80g |
| Granulated Sugarcurrent | 133.33g |
| Caster Sugar | 140g |
| Brown Sugar (packed) | 146.67g |
All values use USDA FoodData Central spooned-and-leveled method. Click any ingredient to see its full conversion table.
Measuring Granulated Sugar Accurately
Why weight matters: 2/3 cup of granulated sugar can weigh anywhere from 113g to 160g depending on how you measure it. The USDA standard is 133.33g (spooned and leveled). Scooping directly from the container can add 10–20% extra weight, which affects recipe results — especially in baking.
About granulated sugar density: Granulated white sugar is the most consistent of all sugars — 1 cup = 200g regardless of spooning or packing. The uniform crystal size makes it very consistent to measure. Standard sugar for most baking recipes.
About 2/3 Cup as a Measurement
2/3 cup = 10 tablespoons + 2 teaspoons = 160ml. This measure appears when scaling up 1/3 cup recipes by doubling. Use two 1/3-cup measures for accuracy, as 2/3 cup sets are less common.
Two-thirds cup is often seen in oatmeal cookie recipes, breakfast grain bowls, and rice cooker recipes for 2 servings. It equals exactly 160ml or approximately 5.4 fluid ounces.
Frequently Asked Questions
How many grams is 2/3 cup of granulated sugar?
2/3 cup of granulated sugar weighs 133.33 grams (4.7 oz, 160ml). Based on USDA FoodData Central: 1 cup granulated sugar = 200g, so 2/3 cup = 200 × 0.667 = 133.33g.
Is 2/3 cup of granulated sugar the same weight every time?
The weight can vary slightly depending on measuring technique. Spooned and leveled gives 133.33g. Scooped (packed) can be 10–20% heavier. Sifted gives a lighter weight. The USDA standard (spooned and leveled) of 133.33g is the most reliable baseline for recipes.
How do I accurately measure 2/3 cup of granulated sugar?
For accuracy, use a kitchen scale and weigh 133.33g of granulated sugar. If using measuring cups, spoon the granulated sugar lightly into a 2/3 Cup measuring cup and level off the top with a straight edge. Avoid scooping directly from the container, which compacts the ingredient and adds extra weight.
How does 2/3 cup of granulated sugar compare to other ingredients?
2/3 cup of different ingredients varies significantly: Powdered Sugar = 80g, Granulated Sugar = 133.33g, Caster Sugar = 140g. This is because each ingredient has a different density.