Two-Thirds Cup of Brown Sugar (packed) in Grams
2/3 cup of brown sugar (packed) weighs 146.67g (5.17 oz, 160ml) according to USDA FoodData Central (1 cup brown sugar (packed) = 220g, 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.
Brown Sugar (packed) Cup-to-Gram Conversion Table
Full range from 1 tablespoon to 3 cups. The highlighted row shows 2/3 cup.
| Amount | Grams |
|---|---|
| 1 tbsp | 13.75g |
| 2 tbsp | 27.5g |
| 1/8 cup | 27.5g |
| 1/4 cup | 55g |
| 1/3 cup | 73.33g |
| 1/2 cup | 110g |
| 2/3 cupthis page | 146.67g |
| 3/4 cup | 165g |
| 1 cup | 220g |
| 1 1/4 cups | 275g |
| 1 1/2 cups | 330g |
| 1 3/4 cups | 385g |
| 2 cups | 440g |
| 2 1/2 cups | 550g |
| 3 cups | 660g |
Source: USDA FoodData Central (FDC ID: 19334). 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 Sugar | 133.33g |
| Caster Sugar | 140g |
| Brown Sugar (packed)current | 146.67g |
All values use USDA FoodData Central spooned-and-leveled method. Click any ingredient to see its full conversion table.
Measuring Brown Sugar (packed) Accurately
Why weight matters: 2/3 cup of brown sugar (packed) can weigh anywhere from 125g to 176g depending on how you measure it. The USDA standard is 146.67g (spooned and leveled). Scooping directly from the container can add 10–20% extra weight, which affects recipe results — especially in baking.
About brown sugar (packed) density: Brown sugar is almost always measured packed. Press firmly into the cup — it should hold its shape when turned out. 1 cup packed = 220g. Light brown: ~200g. Dark brown: ~220g. The molasses coating makes it sticky and dense.
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 brown sugar (packed)?
2/3 cup of brown sugar (packed) weighs 146.67 grams (5.17 oz, 160ml). Based on USDA FoodData Central: 1 cup brown sugar (packed) = 220g, so 2/3 cup = 220 × 0.667 = 146.67g.
Is 2/3 cup of brown sugar (packed) the same weight every time?
The weight can vary slightly depending on measuring technique. Spooned and leveled gives 146.67g. Scooped (packed) can be 10–20% heavier. Sifted gives a lighter weight. The USDA standard (spooned and leveled) of 146.67g is the most reliable baseline for recipes.
How do I accurately measure 2/3 cup of brown sugar (packed)?
For accuracy, use a kitchen scale and weigh 146.67g of brown sugar (packed). If using measuring cups, spoon the brown sugar (packed) 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 brown sugar (packed) 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.