White Rice Cups to Grams
The 198 g-per-US-cup reference is for dry uncooked long-grain white rice. A rice cooker's own plastic cup is often smaller than the US cup used here.
Reference measurement
198 grams per US cup
Measure dry long-grain rice in a dry US cup and level.
King Arthur Baking lists 1/2 cup dry long-grain rice as 99 g; normalized to 198 g per US cup. Source note
This value is for uncooked long-grain rice. Cooked rice absorbs water and has a different cup weight.
Common White Rice measurements
| US cups | Grams |
|---|---|
| 0.25 US cups | 49.5 grams |
| 0.333 US cups | 66 grams |
| 0.5 US cups | 99 grams |
| 0.667 US cups | 132 grams |
| 0.75 US cups | 148.5 grams |
| 1 US cup | 198 grams |
| 1.5 US cups | 297 grams |
| 2 US cups | 396 grams |
Practical examples
- 1/2 US cup = 99 grams.
- 1 US tablespoon = 12.38 grams.
- 3 US teaspoons = 12.38 grams.
Measuring note
Measure dry long-grain rice in a dry US cup and level.
This value is for uncooked long-grain rice. Cooked rice absorbs water and has a different cup weight.
The cup from a rice cooker is a different measure
King Arthur's dry long-grain rice entry is 99 g for half a US cup, implying 198 g for a full US cup. Zojirushi's manufacturer FAQ explains that its included rice measuring cup is about six fluid ounces, or approximately three-quarters of a standard US cup. The two volumes cannot be treated as equal.
Two US cups of dry long-grain rice give 396 g under the King Arthur chart. Two smaller cooker cups are only about one and a half US cups by volume; about 297 g would follow only if the same rice and filling method scaled linearly. That conditional illustration is not a certified weight for every cooker cup.
Dry rice and cooked servings are not the same ingredient state
Fill and level a dry measuring cup with uncooked long-grain white rice before rinsing or cooking. After cooking, water changes the grain mass and volume: a cup of cooked rice must not be assigned the dry reference's 198 g mass.
Grain shape and cooker pan markings vary; use the appliance's own measuring vessel together with its water-level instructions rather than mixing a cooker's cup with a US-cup recipe water ratio. A kitchen scale avoids confusion when the recipe specifies dry rice by weight.