Enter the number of people you're feeding, select whether rice is the primary dish or a side dish, and choose your preferred unit of measurement. The Rice Per Person Calculator tells you exactly how much uncooked rice you need — in grams, cups, or ounces — plus the estimated cooked rice yield and total calories.
Uncooked Rice Needed
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Cooked Rice Yield (g)
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Uncooked Rice (g)
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Uncooked Rice (US Cups)
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Uncooked Rice (Rice Cooker Cups)
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Total Calories
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As a general rule, plan for about 75–90g (roughly ⅓ cup) of uncooked rice per person when rice is a side dish, and around 100–125g (about ½ cup) when it's the main course. These amounts roughly triple in weight once cooked, giving each person a satisfying 225–375g serving of cooked rice.
Most varieties of white rice approximately triple in volume and weight when cooked, because the grains absorb water. So 100g of dry rice yields around 300g of cooked rice, and 1 cup of uncooked rice produces roughly 3 cups cooked. Brown rice expands slightly less, typically doubling in weight.
For a side dish, use about ¼ US cup (roughly 50g) of uncooked rice per person. For a primary dish, use around ½ US cup (100g) per person. These quantities will yield approximately ¾ to 1½ cups of cooked rice per person respectively.
Children aged 3–10 typically eat about half an adult portion, so around 35–50g of uncooked rice. Toddlers aged 1–2 need roughly a quarter of an adult portion, around 25g uncooked. Adjusting for age helps reduce food waste and ensures appropriate serving sizes.
The serving size in grams is roughly the same across most rice varieties. However, expansion ratios can differ slightly — white, jasmine, and basmati rice tend to triple in weight when cooked, while brown rice roughly doubles. The calculator uses standard white rice conversion ratios.
A standard US legal cup holds about 180–185g of uncooked white rice, while a rice cooker cup (180ml) holds around 150–160g. If you don't have a scale, use measuring cups and refer to the cup measurements provided by this calculator for an easy, accurate result.
Uncooked white rice contains roughly 350–365 kcal per 100g. A typical side-dish portion of 75g uncooked rice provides around 260–275 kcal, while a main-dish portion of 100g uncooked provides approximately 350 kcal. The calculator displays the estimated total calories for all your diners combined.
Yes — multiply the weight of uncooked rice by approximately 3 to get the cooked weight in grams (e.g. 200g uncooked × 3 = 600g cooked). For cups, 1 cup uncooked ≈ 3 cups cooked. This works reliably for most white rice varieties cooked by the absorption method.