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Rice Cup to Gram Converter

Enter the number of cups and choose the rice type.

How it is calculated

The tool multiplies the number of cups by a fixed weight per cup of uncooked rice: grams = cups × g_per_cup, then ounces = grams / 28.3495. The weights per cup are 185 g for white, 180 g for basmati, 190 g for brown, 185 g for jasmine and 200 g for arborio. An unrecognized type falls back to 185 g. Cups must be zero or more, and decimals such as 1.5 are fine. Grams are rounded to one decimal and ounces to two. The figures are averages for a level US-style cup; how firmly the rice is packed and the brand change the real weight, and cooked rice weighs far more, so this is for dry rice only.

Worked example

A recipe needs 1.5 cups of basmati rice. Basmati is set at 180 g per cup, so grams = 1.5 × 180 = 270.0 g. Ounces: 270 / 28.3495 = 9.52 oz. If you picked arborio at 200 g per cup, the same 1.5 cups would be 300 g, so the rice type changes the weight by more than 10 percent.

Try this example →

Common mistakes

  • Entering cups of cooked rice; the weights are for dry, uncooked grains, and cooked rice is much heavier per cup.
  • Leaving the type on white when the recipe uses basmati or arborio, which shifts the weight by 5 to 15 g per cup.
  • Using a rice-cooker cup (often about 180 mL) instead of a standard measuring cup; the tool assumes a US-style measuring cup.
  • Scooping a heaping or tightly packed cup, which is heavier than the level-cup figure the tool uses.

About this calculator

Because uncooked rice grains vary in size, shape, and density, a single “cup” doesn't weigh the same across rice types — this converter applies a different grams-per-US-cup figure depending on whether you select long-grain white, basmati, jasmine, brown, or arborio, then multiplies it by your number of cups to give grams (and ounces).

Recipes and nutrition labels often mix volume and weight measurements, so home cooks scaling a recipe, meal preppers portioning rice by weight, and people tracking calories or carbs use this to convert a recipe's “1 cup rice” into an accurate gram figure rather than relying on a generic 180-200g rule of thumb that can be off by 10% or more for a lighter long grain like basmati versus a denser short-grain variety such as arborio.

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Comments (1)

  • Editorial team

    The cup itself is the biggest unknown. The figures assume a US cup of about 240 mL, so a recipe written with a 250 mL metric cup holds roughly 4% more rice, and a rice-cooker cup is smaller still. If accuracy matters, weigh one level cup of your rice on a kitchen scale once and use that number for future conversions. Which rice and which measuring cup do you use at home, and how close was the result to your scale?

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