Cup & Gram

Grams of Brown Sugar to Cups

One US cup of brown sugar (packed) weighs 213 grams. To convert grams of brown sugar (packed) to cups, divide the grams by 213 — so 100 g is ½ cup and 213 g is exactly 1 cup.

250 g Light brown sugar (packed) = 1 ⅛ cups

Exactly 1.17 cups — or measure 1 cup + 3 tbsp.

Brown Sugar cups-to-grams chart

US cups of brown sugar (packed) to grams (213 g per cup)
CupsGramsOunces
¼ cups 53 g 1.9 oz
⅓ cups 71 g 2.5 oz
½ cups 107 g 3.8 oz
⅔ cups 142 g 5 oz
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

How to measure 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.

Grams of brown sugar to cups — every amount

Other ingredients

Density 213 g/cup — sources: King Arthur Baking ingredient weight chart, USDA FoodData Central. Data verified 2026-08-20. Methodology.