How many grams in a cup of unpacked brown sugar?
1 cup of unpacked brown sugar weighs 145 g.1 tablespoon: 9.1 g1 teaspoon: 3 g
Weights are for unpacked brown sugar, in US customary cups.
Convert any amount
= 145 g
Enter a number or fraction, such as 1/2 or 1 1/2.
Cups to grams
| Cups | Grams |
|---|---|
| ⅛ cup | 18 g |
| ¼ cup | 36 g |
| ⅓ cup | 48 g |
| ½ cup | 73 g |
| ⅔ cup | 97 g |
| ¾ cup | 109 g |
| 1 cup | 145 g |
| 1 ½ cups | 218 g |
| 2 cups | 290 g |
| 3 cups | 435 g |
Grams to cups
| Grams | US measure |
|---|---|
| 25 g | ≈ 2 tbsp + 2 ½ tsp |
| 50 g | ≈ ⅜ cup |
| 100 g | ½ cup + 3 tbsp |
| 150 g | ≈ 1 cup + 1 tbsp |
| 200 g | 1 ⅜ cups |
| 250 g | ≈ 1 ¾ cups |
| 500 g | 3 ¼ cups + 3 tbsp |
| 1,000 g | 6 ⅞ cups |
Rounded to amounts you can measure; ≈ marks a rounded answer.
Measuring unpacked brown sugar
These weights are for unpacked brown sugar. A different form, or a cup filled another way, weighs differently, so weigh it if the recipe gives grams.
Source
USDA FoodData Central, food 168833: “Sugars, brown”, 1 cup, unpacked = 145 g (USDA FoodData Central SR Legacy, April 2018). Other amounts are calculated with 1 cup = 16 tablespoons = 48 teaspoons. Data version 2026-10-17.1, reviewed 16 October 2026.
Scaling a recipe?
Paste the ingredients into the recipe scaler to double, halve or resize every amount at once.