How many grams in a cup of uncooked white rice?

1 cup of uncooked long-grain white rice weighs 185 g by USDA's figure. King Arthur Baking lists 99 g per half cup, which is 198 g per cup.

Sources: USDA FoodData Central, King Arthur Baking ingredient weight chart · Checked October 10, 2026

Amount

Unit

185 g 6.5 oz

Sources range from 185 g to 198 g for 1 cup.

Converting a whole recipe?

Sous Chef converts every ingredient in a recipe to grams and millilitres in one tap, rounded to amounts you would actually weigh.

White rice cups to grams table

Using 185 g per US cup. A US cup is 236.6 mL; 1 cup is 16 tablespoons.

White rice cups to grams
US cups	Grams	Ounces	Tablespoons
⅛ cup	23 g	0.8 oz	2
¼ cup	46 g	1.6 oz	4
⅓ cup	62 g	2.2 oz	5.3
½ cup	93 g	3.3 oz	8
⅔ cup	123 g	4.4 oz	10.7
¾ cup	139 g	4.9 oz	12
1 cup	185 g	6.5 oz	16
1½ cups	278 g	9.8 oz	24
2 cups	370 g	13.1 oz	32
3 cups	555 g	19.6 oz	48
4 cups	740 g	26.1 oz	64

Why sources disagree

Rice grains pack differently depending on grain size and how the cup is filled, so the sources are 13 g apart. These weights are for dry rice; cooked rice holds water and weighs much more per cup.

Source	Listed as	Grams per cup
USDA FoodData Central Rice, white, long-grain, regular, raw, enriched	1 cup = 185 g	185 g
King Arthur Baking ingredient weight chart Rice (long grain, dry)	½ cup = 99 g	198 g

Bold row is the figure the calculator uses. Figures listed for a smaller measure are multiplied up to one cup.

How to measure uncooked white rice accurately

Measure dry rice before rinsing or cooking, since cooked rice weighs far more per cup.
Weigh on a digital scale when you can, since cup scoops vary from cook to cook.
If you use cups, fill the same way every time so your results stay consistent.

Convert the whole recipe, not one line

Converting a recipe one ingredient at a time is where mistakes slip in. Sous Chef imports a recipe from a link or pasted text, then converts every ingredient at once: dry ingredients and butter to grams, liquids to millilitres. Tap again to go back to cups.

US recipe

2¼ cups all-purpose flour
1 cup butter, softened
¾ cup brown sugar, packed
1½ cups milk

In Sous Chef, after "Convert to metric"

275 g all-purpose flour
225 g butter, softened
170 g brown sugar, packed
350 ml milk

Example output. Sous Chef rounds to amounts you would actually weigh, so its numbers can differ by a few grams from the table above.

Common questions

How many grams is half a cup of uncooked white rice?

Half a cup of uncooked white rice is about 93 g, using 185 g per cup.

How many grams is 1 tablespoon of uncooked white rice?

1 tablespoon of uncooked white rice is about 12 g, since 1 cup is 16 tablespoons and 185 g per cup divided by 16 is 12 g.

More conversions

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