1 1/2 Cups of Brown Sugar in Grams
1 1/2 cups of brown sugar (packed) weighs 320 grams (about 11.3 oz), based on 213 g per US cup (packed into the cup). That's the same as 24 tablespoons of brown sugar (packed). When a recipe's outcome depends on accuracy — especially baking — weigh it instead of measuring by cup.
1 1/2 cups is one full cup plus a half (213 g + 107 g). At this size the fill method starts to matter: the error in each cup is added, not averaged.
How much is 1 1/2 cups of brown sugar (packed)?
| Grams | 320 g |
|---|---|
| Ounces (weight) | 11.3 oz |
| Tablespoons | 24 tbsp |
| Teaspoons | 72 tsp |
| Density used | 213 g per US cup |
No 1 1/2 cups measure? Use spoons
1 1/2 cups is exactly 24 tablespoons, which is 320 g of brown sugar (packed). Measuring spoons are stamped to a tighter tolerance than cups, so for small amounts the spoon route is usually the more accurate one even when you do own the cup.
Halving and doubling 1 1/2 cups
Scaling a recipe is the usual reason this conversion comes up, and grams scale cleanly where cup fractions do not:
| Recipe | Cups | Grams | Spoons |
|---|---|---|---|
| Half | ¾ cup | 160 g | 12 tablespoons |
| As written | 1 ½ cups | 320 g | 24 tablespoons |
| Double | 3 cups | 639 g | 48 tablespoons |
Nearby amounts
| Cups | Grams | Ounces |
|---|---|---|
| ¾ cups | 160 g | 5.6 oz |
| 1 cup | 213 g | 7.5 oz |
| 1½ cups | 320 g | 11.3 oz |
| 2 cups | 426 g | 15 oz |
| 3 cups | 639 g | 22.5 oz |
Every cup fraction of brown sugar in grams — the full chart.
How to measure 1 1/2 cup of brown sugar (packed)
Brown sugar is always measured packed: press it firmly into the cup until it holds the cup’s shape when turned out. Packed is 213 g per cup; loosely filled can weigh 25% less, which noticeably changes moisture and spread in cookies.
1 1/2 cup of other ingredients
- 1 1/2 cup all-purpose flour in grams — 180 g
- 1 1/2 cup granulated sugar in grams — 300 g
- 1 1/2 cup powdered sugar in grams — 180 g
- 1 1/2 cup honey in grams — 510 g
- 1 1/2 cup butter in grams — 341 g
Convert another amount
250 cups Light brown sugar (packed) = 53250 g
Based on 213 g per US cup.
Reverse conversion: grams of brown sugar to cups.
Density 213 g/cup — sources: King Arthur Baking ingredient weight chart, USDA FoodData Central. Data verified 2026-08-20. Methodology.