Cup & Gram

Grams of Rice to Cups

One US cup of uncooked white rice weighs 185 grams. To convert grams of uncooked white rice to cups, divide the grams by 185 — so 100 g is ½ cup and 185 g is exactly 1 cup.

250 g White rice, uncooked (long grain) = 1 ⅓ cups

Exactly 1.35 cups — or measure 1 cup + 6 tbsp.

Rice cups-to-grams chart

US cups of uncooked white rice to grams (185 g per cup)
CupsGramsOunces
¼ cups 46 g 1.6 oz
⅓ cups 62 g 2.2 oz
½ cups 93 g 3.3 oz
⅔ cups 123 g 4.3 oz
¾ cups 139 g 4.9 oz
1 cup 185 g 6.5 oz
1½ cups 278 g 9.8 oz
2 cups 370 g 13.1 oz

How to measure uncooked white rice

Uncooked long-grain white rice is about 185 g per level cup. Rice roughly triples in weight when cooked, so 1 cup uncooked (185 g) yields around 3 cups cooked.

Grams of rice to cups — every amount

Other ingredients

Density 185 g/cup — sources: USDA FoodData Central, King Arthur Baking ingredient weight chart. Data verified 2026-08-20. Methodology.