| US cup amount | Weight |
|---|---|
| 1/8 cup | 23 g |
| 1/4 cup | 46 g |
| 1/3 cup | 62 g |
| 1/2 cup | 92 g |
| 3/4 cup | 139 g |
| 1 cup | 185 g |
| 1 1/2 cups | 278 g |
| 2 cups | 370 g |
Rice Grams to Cups
1 US cup of white rice weighs 185 grams. One US cup of uncooked long-grain white rice weighs about 185 grams. This page is for dry rice before cooking, because cooked rice has absorbed water and uses a different relationship.
Use the converter and charts below for uncooked long-grain white rice.
Grams to Cups Converter
Choose the ingredient before converting because every ingredient has a different weight per cup.
Grams to Cups Converter
Results use the documented ingredient state and one US customary cup.
Divide the gram amount by 185 to calculate US cups. The practical fraction is a measuring aid, not a replacement for the exact gram weight.
| Grams | US cups | Practical reference |
|---|---|---|
| 25 g | 0.14 cups | about 1/8 cup |
| 30 g | 0.16 cups | about 1/8 cup |
| 40 g | 0.22 cups | about 1/4 cup |
| 50 g | 0.27 cups | about 1/4 cup |
| 60 g | 0.32 cups | about 1/3 cup |
| 75 g | 0.41 cups | about 3/8 cup |
| 80 g | 0.43 cups | about 3/8 cup |
| 100 g | 0.54 cups | about 1/2 cup |
| 120 g | 0.65 cups | about 2/3 cup |
| 125 g | 0.68 cups | about 2/3 cup |
| 150 g | 0.81 cups | about 3/4 cup |
| 200 g | 1.08 cups | about 1 1/8 cup |
| 250 g | 1.35 cups | about 1 1/3 cup |
| 300 g | 1.62 cups | about 1 5/8 cup |
| 400 g | 2.16 cups | about 2 1/8 cup |
| 500 g | 2.7 cups | about 2 2/3 cup |
Pour dry rice into a cup and level the top without crushing the grains. Check the package instructions when using basmati, jasmine, short-grain or parboiled rice because grain size changes how the cup fills.
Grams = cups × 185
One cup is 185 grams, one-half cup is about 92 grams and one-quarter cup is about 46 grams.
Common uses
- Pilaf and rice bowls
- Casseroles
- Meal-prep portions
Rice varieties do not share one exact cup weight. The selected value is a practical reference for uncooked long-grain white rice, and the page keeps that state visible beside the result.
The converter does not assume that every cup weighs 237 or 250 grams. It uses the documented value for the exact ingredient and state selected.
If a product label or recipe publisher supplies a different gram weight for one cup, follow that recipe-specific value for the closest match to the original testing.
Method and source
How this conversion was checked
This page uses 185 grams per US cup for uncooked long-grain white rice. Rice weight varies by grain variety; this value is for uncooked long-grain white rice.
Primary reference: USDA FoodData Central
Cup standard: NIST US customary cup reference
How many grams are in one cup of white rice?
One US cup of uncooked long-grain white rice uses a working reference of 185 grams on GramstoCup.co.
How many cups is 100 grams of white rice?
100 grams of uncooked long-grain white rice is 0.54 US cups.
How many grams is half a cup of white rice?
Half a US cup is approximately 92 grams using the 185 gram full-cup reference.
Can the result vary by brand or method?
Yes. Rice weight varies by grain variety; this value is for uncooked long-grain white rice. Use the original recipe weight when precision is important.
Are these US cups or metric cups?
The results use a US customary cup. A metric cup is 250 milliliters and can produce a different answer.
Other Ingredient Guides
Each guide uses its own grams-per-cup standard.
Editorial review
Reviewed for clarity and consistency
Written and reviewed by William Leo. Ingredient values are checked against the methodology and sources listed on this page.
Last reviewed
August 23, 2026