Cups of white rice to grams

What the sources say about a cup of white rice

Two published sources, side by side. Where a source lists several forms or ways of measuring, each is a row.

Spread across sources: 7% between USDA and King Arthur for the main entry. Ingredient weights vary by brand, packing and humidity; the table is a reference, not a guarantee.

Why this number: 185 g per US cup

We use the USDA measured weight, because for liquids, fats, syrups and free-flowing grains a measured weight is more reliable than a rounded ounce value. Where the two sources disagree, both figures are in the table above and in the calculator, so you can switch to the one your recipe was written with.

This page is for uncooked rice. USDA measures 185 g for a cup of raw long-grain white rice (and the same 185 g for raw long-grain brown rice); King Arthur lists 99 g for half a cup, which is 198 g a cup, a 7% gap. Rice grains pour into a cup and settle, so the measure is much more repeatable than for flour.

A cup of cooked rice is a different quantity: USDA lists 202 g for cooked long-grain brown rice and King Arthur lists 170 g for cooked brown rice. Rice absorbs water, so a recipe that says "1 cup rice" nearly always means uncooked unless it says cooked.

A common rice-cooker "cup" is not a US cup: the measuring cup supplied with Japanese rice cookers is traditionally 180 ml (1 go), so check before using the figures here for such recipes.

Cups of white rice to grams chart

Grams of white rice to cups

US cup, metric cup and spoons

One US cup of white rice at our default weight is 185 g. A 250 ml metric cup, used in Australia, New Zealand, Canada and many metric recipes, holds the same volume plus 5.7%, which is 195 g. A US legal (nutrition label) cup of 240 ml is 188 g. These all assume the same packing as the US cup; read about it on US cup vs metric cup.

Sources and when they were checked

• USDA FoodData Central, SR Legacy (April 2018 release), food Rice, white, long-grain, regular, raw, enriched (FDC ID 168877). Gram weights per household measure as published; per-cup figures where USDA lists a different amount (such as 2 tablespoons) are scaled.
• King Arthur Baking, Ingredient Weight Chart, row(s): Rice (long grain, dry), Brown rice (cooked). Chart rows that list a quarter cup, half cup or tablespoon are scaled to a full cup on this page; the original listing is shown in the table above.
• Cup volumes: the US customary cup is exactly 236.5882365 ml; the US nutrition-label cup is defined in US law as 240 ml (21 CFR 101.9); the metric cup is 250 ml (see US cup vs metric cup).

Last checked 27 October 2026. Weights are for reference: ingredients vary by brand, humidity and how they are packed. If your recipe gives gram weights, use those.

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