How Many Grams in a Cup of Brown Sugar?
1 cup brown sugar = 213 g7.5 oz · firmly packed · ½ cup = 107 g · 1 tbsp = 13 g
Reference values Being verified with kitchen scale tests. Current figures follow the King Arthur Baking ingredient weight chart.
On this page: Chart, ⅛ to 4 cups · Grams to cups · Measuring tips
Brown Sugar cups to grams
213 g
1 cup brown sugar (packed) (firmly packed) ≈ 7.5 oz
Reference values Being verified with kitchen scale tests. Current figures follow the King Arthur Baking ingredient weight chart.
Why brown sugar has its own cups-to-grams number
US recipes almost always mean packed brown sugar: pressed into the cup firmly enough that it holds the cup’s shape when you tip it out. Measured loosely, the same cup weighs noticeably less, so “packed” matters. The reference value here is for firmly packed light or dark brown sugar.
Brown Sugar cups to grams chart
US cups and spoons, firmly packed. Grams are rounded to the nearest gram (0.1 g under 10 g).
| US measure | Grams | Ounces |
|---|---|---|
| 1 teaspoon | 4.4 g | 0.16 oz |
| 1 tablespoon | 13 g | 0.47 oz |
| ⅛ cup (2 tbsp) | 27 g | 0.94 oz |
| ¼ cup | 53 g | 1.88 oz |
| ⅓ cup | 71 g | 2.5 oz |
| ½ cup | 107 g | 3.76 oz |
| ⅔ cup | 142 g | 5.01 oz |
| ¾ cup | 160 g | 5.64 oz |
| 1 cup | 213 g | 7.51 oz |
| 1½ cups | 320 g | 11.3 oz |
| 2 cups | 426 g | 15 oz |
| 3 cups | 639 g | 22.5 oz |
| 4 cups | 852 g | 30.1 oz |
| Grams | US measures | Decimal cups |
|---|---|---|
| 50 g | 3 tbsp + 2¼ tsp | 0.23 cups |
| 100 g | ≈ ¼ cup + 3 tbsp + 1½ tsp | 0.47 cups |
| 250 g | ≈ 1 cup + 2 tbsp + 2¼ tsp + ⅛ tsp | 1.17 cups |
| 500 g | ≈ 2⅓ cups | 2.35 cups |
“≈” means the amount is rounded to the nearest ⅛ teaspoon you can measure.
How to measure brown sugar for this conversion
- Press the sugar into the cup with your fingers or the back of a spoon, then level the top.
- A properly packed cup turns out like a sandcastle.
- Hard, lumpy brown sugar won’t pack evenly. Soften it first (an airtight container with a slice of bread or a damp paper towel overnight is the usual fix).
- If a recipe from outside the US gives brown sugar by weight, weigh it — it skips the packing question entirely.
Out of brown sugar? The homepage has a quick swap using granulated sugar and molasses.
Source: King Arthur Baking Ingredient Weight Chart (reference value, not yet scale-tested by Measure Pantry).