Rice: Cups to Grams, Raw vs. Cooked
Why raw and cooked rice weigh completely differently, the actual gram weights for white, brown, and basmati rice per cup, and why recipes should always specify which state they mean.
Of every conversion mistake home cooks make, confusing raw and cooked rice weight is probably the most consequential, because the difference isn't a small margin like flour packing — it's close to a factor of three. Rice absorbs roughly its own weight in water (and then some) as it cooks, swelling from a dense, dry grain into a soft, water-saturated one, so '1 cup of rice' as a nutrition label ingredient, a recipe instruction, or a meal-prep portion means wildly different amounts of actual food depending on which state it's in. This matters most when you're counting calories or macros from a nutrition database (which usually lists cooked weight) but measuring your rice raw before cooking, or vice versa. This guide gives you real gram weights for raw and cooked rice across the common types, and the ratio you need to convert confidently between them.
Raw white rice: 185-200g per cup
One cup of raw, uncooked long-grain white rice weighs approximately 185-200 grams (USDA data puts long-grain white rice at about 185g/cup, though granularity varies slightly by rice length and how tightly the grains settle). This is the number you want when a recipe says '1 cup rice' as an ingredient to be cooked — it refers to the dry, raw measurement almost universally, since that's what you're actually adding to the pot.
Cooked white rice: 175-200g per cup — but it's a different cup's worth
Here's the part that trips people up: cooked white rice also weighs around 175-200g per cup, which looks similar to raw rice's weight — but that 1 cup of cooked rice came from roughly 1/3 cup of raw rice, not 1 full cup. Rice absorbs water at close to a 2:1 or 2.5:1 water-to-rice ratio during cooking and swells to fill roughly 3 cups of cooked volume for every 1 cup of raw rice. So the gram weight per cup looks deceptively stable, but the amount of dry rice grain represented in that cup has dropped to about a third.
💡 İpucu: If a recipe or nutrition label doesn't specify raw or cooked, and it's giving calories, assume cooked — nutrition databases almost always report cooked weight because that's what you actually eat.
The raw-to-cooked ratio: roughly 1 cup raw = 3 cups cooked
As a working rule, 1 cup of raw white rice (about 185g) yields close to 3 cups of cooked rice (about 550-600g total), because the rice absorbs roughly 2 to 2.25 cups of water during cooking and that water becomes part of the rice's final weight and volume. This 1:3 ratio is a reliable planning tool for meal prep: if you need 4 cups of cooked rice for a week of lunches, cook about 1.3 cups of raw rice, not 4.
Brown rice: similar raw weight, different cook ratio
Raw brown rice weighs almost the same as white rice per cup, about 185-190g, since the bran layer that distinguishes brown from white rice doesn't add much bulk. But brown rice absorbs water more slowly due to its intact bran, cooking to a slightly lower expansion ratio — closer to 1 cup raw yielding 2.5-2.75 cups cooked rather than white rice's roughly 3 cups — and needs about 15-20 more minutes of cook time to fully hydrate.
Basmati rice: lighter and less absorbent than short/medium grain
Basmati, a long, slender grain, weighs slightly less per cup raw than standard long-grain white rice — around 180g/cup — and its lower starch content means it expands to a slightly higher ratio, closer to 1 cup raw yielding just over 3 cups cooked, with distinct, separate grains rather than the stickier texture of short or medium-grain rice like sushi rice, which packs denser (200-210g/cup raw) and expands less due to its higher amylopectin content.
Why recipes should always specify raw or cooked
A recipe that lists '2 cups rice' without specifying raw or cooked is functionally ambiguous — it could mean anywhere from about 370g of dry grain (raw) to roughly 370g of a fully hydrated side dish that started as only 2/3 cup of raw rice (cooked). This site always specifies raw or cooked explicitly in ingredient lists for exactly this reason; when following any recipe that doesn't, the safest assumption is that a rice quantity given as an ingredient to be cooked means raw, while a rice quantity given as a serving or side portion means cooked.
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How many grams is 1 cup of cooked rice?
About 175-200 grams for cooked white rice, which is close to raw rice's per-cup weight but represents far less actual dry rice — roughly 1/3 cup of raw rice produces 1 cup of cooked rice, since rice absorbs about 2 to 2.5 times its weight in water while cooking.
Is 1 cup of raw rice the same as 1 cup of cooked rice?
No, they're very different amounts of food. 1 cup of raw rice (about 185-200g) expands to roughly 3 cups of cooked rice after absorbing water, so if a recipe means raw rice but you measure cooked rice instead (or vice versa), you'll end up with about a third or triple the intended amount.
How much does rice weigh after cooking compared to before?
Cooked rice weighs roughly 2.5 to 3 times its raw weight, because it absorbs water during cooking that becomes part of its final mass. 1 cup (185g) of raw white rice yields about 550-600g of cooked rice, spread across roughly 3 cups of cooked volume.
Does nutrition information for rice mean raw or cooked?
Nutrition labels and databases almost always report cooked weight, since that's the form you actually eat — 1 cup of cooked white rice is about 200-205 calories. If you're counting calories from raw rice you're about to cook, use raw-rice-specific data instead, since raw rice is far more calorie-dense per cup (about 675 calories per cup raw).
Does brown rice weigh the same as white rice per cup?
Raw brown and white rice weigh almost the same per cup, about 185-190g, since the bran layer on brown rice doesn't add significant bulk. The difference shows up in cooking: brown rice absorbs water more slowly and expands to a slightly lower ratio than white rice, needing 15-20 extra minutes to fully cook.
The rule to remember is roughly 1:3 — one cup of raw rice becomes about three cups of cooked rice, tripling in weight and volume as it absorbs water. Nutrition labels default to cooked weight, recipe ingredient lists default to raw weight, and the two are not interchangeable without doing that conversion first. When precision matters, like matching a target calorie count, weigh your rice raw before cooking and use standardized cooked-weight nutrition data rather than eyeballing a cooked cup.
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