How Many Grams Is a Cup of Rice | Weight That Matches Your Recipe

One US cup of uncooked long-grain white rice weighs 185 grams, though the weight varies by grain type from 150 to 210 grams per cup.

A bag of flour, a jar of sugar, a scoop of rice — volume measurements work fine until they don’t. The difference between a packed cup and a level one can swing a rice dish from fluffy to gummy. The number behind “how many grams is a cup of rice” depends on which rice you reach for and how you fill the cup, but a kitchen scale settles the question for good.

The Gram Weight by Rice Variety

Rice grains differ in size, shape, and density, so a cup of one variety can outweigh another by 60 grams — enough to throw off the water ratio in a pilaf or a sushi batch. The table below gives the standard US cup (240 mL) weights for the most common types.

If a recipe calls for “one cup of rice” without specifying the type, the 185-gram standard for long-grain white is the safest bet. Basmati and jasmine run close, while short-grain and brown rice push higher, and arborio is the heavyweight at 210 grams per cup.

Why the Weight Changes With Your Scoop

Digging the measuring cup straight into the bag packs the grains tighter. Scooping adds roughly 15–20 extra grams compared to the spoon-and-level method — enough to turn a measured 185 grams into 200-plus grams. Spooning means filling the cup with a spoon or scoop and leveling off the top with a straight edge. That’s the technique behind all the weights listed above.

Moisture and humidity also shift the scale. Rice stored in dry pantry conditions matches the standard figures closely. A bag left open in a humid kitchen can gain a few grams, though not enough to affect most cooking.

The Rice Cooker Cup Trap

Japanese rice cookers ship with a plastic “rice cup” that holds 180 mL, not the 240 mL of a standard US measuring cup. One rice cooker cup of long-grain white rice comes in at about 140–150 grams, roughly two-thirds of a US cup. Using a full 240 mL cup in a recipe designed for a rice cooker cup adds about 25% more rice than intended, and the cooker’s water line may not adjust for it.

Check the manual that came with your appliance. Many manufacturers write their instructions for the 180 mL standard, so measuring with the included cup keeps the ratio honest.

When You Should Weigh Instead of Measure

Diet tracking and baking-style precision are the two places volume falls short. A 20-gram swing in uncooked rice changes the calorie count by roughly 70–80 calories per serving. For meal prep or calorie-conscious cooking, a scale delivers the same result every time. The protocol takes ten seconds: set a bowl on the scale, zero it, and add rice until the display reads 185 grams for standard white rice (180 for basmati, 195 for sushi, 210 for arborio).

For everyday family cooking, the cup method works fine when you use the same scoop and the same leveling style. The scale is a fix for inconsistency, not a requirement for every pot of rice.