π Uncooked to Cooked Rice Converter
Rice triples when cooked: 1 cup dry becomes 3 cups cooked. Convert either way.
Converted Rice
How Much Cooked Rice Will You Get?
Rice roughly triples in volume when cooked: 1 cup of uncooked white, jasmine, basmati, or brown rice becomes about 3 cups cooked. Wild rice quadruples. Enter cups in either direction and the calculator converts, with servings at 1 cup cooked per person and the water needed to cook it.
Choose the direction: uncooked to cooked when planning, cooked to uncooked when a recipe lists the finished amount.
Pick the rice type. White, jasmine, basmati, and brown all use the 3Γ multiple; wild rice uses 4Γ.
Enter the cups and read the converted volume, servings, and water needed.
Cook with the right water ratio for the type, rest 10 minutes, fluff, and serve.
The Rice Expansion Formula
Two cups of uncooked jasmine rice become 6 cups cooked. Six cups of cooked rice for a casserole means starting with 2 cups uncooked. Four cups of cooked wild rice needs just 1 cup uncooked. The multiple is stable across stovetop, rice cooker, and pressure cooker methods.
Worked Example: Burrito Bowls for Six
You need about 6 cups of cooked rice for six bowls. Select cooked to uncooked, enter 6. The calculator returns 2 cups of uncooked rice, which needs 3.5 cups of water for jasmine (1:1.75) or 4 cups for long-grain white (1:2). Cook, rest, fluff: 6 cups of rice, zero guesswork, and the bowls assemble in minutes.
Expansion vs Water Ratio
These are two different numbers that beginners confuse. The expansion multiple (3Γ) tells you how much cooked rice you get. The water ratio (1:2 for white, 1:2.5 for brown) tells you how much water to add. They are related but not the same: brown rice and white rice both expand 3Γ, but brown needs more water and time to get there because the bran resists absorption. Use the multiple for planning and the ratio for cooking.
Practical Tips for Rice Planning
Round up when feeding a crowd; leftover rice is tomorrow's fried rice, which specifically wants day-old refrigerated grains. For meal prep, cook once and portion into 1-cup containers: a single cup of uncooked rice fills 3 containers. Cool cooked rice within an hour and refrigerate promptly; Bacillus cereus is the unglamorous reason rice has stricter leftover rules than pasta. Freeze extras flat in bags for up to 6 months.
Fried rice is the reason to cook extra on purpose: it demands day-old refrigerated rice, whose firmed grains fry up distinct instead of mushy. Cook double, refrigerate half uncovered for an hour then covered overnight, and tomorrow's dinner is 15 minutes away. The 3x rule means the extra costs one more cup of dry rice and zero extra effort.
Meal Prep Rice Guide
Rice is the meal-prep champion because the 3x rule makes batch math trivial. One cup of uncooked rice fills 3 meal-prep containers at 1 cup cooked each (about 200 calories per container). Cook 3 cups uncooked on Sunday and you have 9 containers: lunches for the week. Cool the rice within an hour, portion into sealed containers, and refrigerate 4 days or freeze 6 months.
Reheat with a sprinkle of water and a lid: the steam revives the texture. Frozen rice reheats best straight from frozen in the microwave, 3 minutes with a damp paper towel over the container. Slightly undercook meal-prep rice by a minute; it firms up in the fridge and reheats to perfect. And the fried-rice bonus: day-old refrigerated rice is the required ingredient, so planned leftovers are a feature.
Sushi rice and sticky rice break the 3x rule in interesting ways. Short-grain sushi rice expands to about 3x but needs the 1:1.2 ratio and a 10-minute rest under a damp towel; the seasoning (rice vinegar, sugar, salt) goes in while warm. Glutinous "sticky" rice must soak overnight and steams rather than boils, yielding about 2.5x. Different rices, different rules, same planning principle.
Write the 3x rule on a sticky note inside your rice container: 1 cup dry makes 3 cups cooked. After a month of seeing it every time you cook, you will never look it up again.
Remember that rice doubles in the fridge overnight as it firms, so leftover rice looks like less than it is. One cup of cooked rice reheats into a full side portion for one person; plan leftovers by the cooked cup, not by the pan.
Common Mistakes to Avoid
Cooking the exact computed amount with no buffer leaves you short when someone takes seconds; add half a cup. Using the white-rice water ratio for brown gives crunchy centers. The third mistake is measuring cooked rice by the recipe's "cups" loosely: a packed cup versus a fluffy cup differs by 20%, so for baking-like precision (arancini, rice pudding), weigh the cooked rice instead.
Worked Example: Burrito Bowls for Six
Six burrito bowls need about 1.5 cups of cooked rice each: 9 cups total. White rice triples in volume, so 9 / 3 = 3 cups uncooked. Brown rice expands about 2.5x, so the same meal needs 3.6 cups uncooked. Water follows its own ratio: white rice wants 1.5 to 2 cups water per cup of rice (use 1.75 as the reliable middle), so 3 cups of rice needs about 5.25 cups of water. The calculator converts both directions: servings to uncooked cups, and uncooked cups to water.
Check the pot size before scaling: 3 cups of uncooked rice becomes 9 cups cooked, about 2.25 quarts, which needs a 4-quart pot minimum to avoid boil-over. Rice cookers are rated in uncooked cups for exactly this reason; a "10-cup" cooker handles 3 uncooked cups with room to spare. Scaling recipes without checking vessel size is how kitchens get starchy volcanoes.
Expansion vs Water Ratio
Expansion ratio and water ratio are different numbers and confusing them ruins rice. White long-grain expands 3x in volume but only absorbs about 1.75x its volume in water; the rest of the expansion is the grains swelling and separating. Jasmine and basmati run 1.5x water. Short-grain sushi rice wants 1.25x water for the sticky texture. Brown rice needs 2.5x water and 45 minutes because the bran layer slows absorption. Wild rice is the outlier at 3 to 4x water and a full hour.
The finger method (water to the first knuckle above the rice) works because it scales automatically with pot diameter, encoding roughly the 1.5x ratio for white rice. It fails for brown rice and large batches, where you need the real numbers. Resting matters as much as measuring: 10 minutes off the heat with the lid on lets moisture equalize, turning the bottom layer from mushy and the top from crunchy into uniform grains. Skip the rest and the texture is uneven no matter how precise the water was.
Meal Prep: Cooking Once for the Week
Weekly meal prep inverts the usual question: start from five days of lunches needing 2 cups of cooked rice each, 10 cups total, and work back to 3.33 cups uncooked white rice. Cook it Sunday in two batches (most home pots max out around 2 cups uncooked), cool it fast by spreading on sheet pans, and refrigerate within an hour. Cooked rice keeps 4 to 5 days refrigerated; freeze portions beyond that. Reheat with a sprinkle of water and a lid to re-steam, and day-five rice eats like day-one. The calculator's servings input handles the forward math; this is the backward version for planners.
Frequently Asked Questions
How much cooked rice does 1 cup uncooked make?
About 3 cups of cooked rice for white, jasmine, basmati, and brown rice. The grains absorb water and roughly triple in volume. Wild rice expands more, about 4 times. This 3Γ rule is the one number to memorize for meal planning.
How much uncooked rice for 4 cups cooked?
About 1 and 1/3 cups of uncooked rice: 4 divided by 3. In practice, most cooks round to 1.5 cups uncooked, which yields about 4.5 cups cooked, giving a small buffer. For exact meal prep portions, the 1.33 figure keeps containers consistent.
Does brown rice expand the same as white?
Nearly: 1 cup of uncooked brown rice also yields about 3 cups cooked. The difference is water and time, not expansion: brown needs a 1:2.5 water ratio and 40 to 45 minutes versus 1:2 and 18 minutes for white. The bran slows absorption but the final volume multiple is the same.
How much dry rice for 2 people?
One cup of uncooked rice, which cooks up to about 3 cups: 1.5 cups per person as a side. As a main-dish base for rice bowls, go to 1.5 cups uncooked for 2 people. Rice is cheap; running short mid-dinner is the expensive mistake.
Why did my rice triple but the recipe said double?
Some recipes understate, or they measure a different rice. Short-grain and parboiled rice expand closer to 2.5Γ; long-grain reliably hits 3Γ. Also, "1 cup cooked" in a recipe might mean packed, which reads smaller. When a recipe's yield seems off, trust the 3Γ rule and your eyes.
How many cups of cooked rice in a pound of uncooked?
About 8 to 9 cups cooked. A pound of long-grain white rice is roughly 2.5 cups uncooked (a cup is about 185 grams), and 2.5 Γ 3 = 7.5, plus a little fluff factor. For catering math, a pound of dry rice feeds 5 to 6 people as a side.
Does rice expand more in a rice cooker?
No, the expansion multiple is the same: about 3Γ. Rice cookers just use slightly less water (less steam escapes) and shut off automatically. One cooker-cup of dry rice (180 ml) still becomes about 3 cooker-cups cooked. The 3Γ rule holds across stovetop, cooker, and Instant Pot.
How do you measure cooked rice for meal prep?
Cook by the 3Γ rule, then portion: 1 cup of cooked rice per container is a standard meal-prep serving (about 200 calories). A single cup of uncooked rice preps 3 containers. Cool the rice within an hour, refrigerate, and use within 4 days, or freeze for months.
What is the ratio of dry to cooked wild rice?
About 1 to 4: wild rice expands more than true rice because the grains are longer and split open dramatically. One cup of uncooked wild rice yields about 4 cups cooked, and it needs about 3 cups of water per cup with a 45 to 55 minute simmer.
Can you cook extra rice on purpose?
Absolutely, and you should: deliberately cooking double gives you fried rice tomorrow, which genuinely needs day-old refrigerated rice for the right texture. Cool it fast, refrigerate within an hour, and the grains firm up perfectly for the wok. Planned leftovers beat accidental ones.