Uncooked to Cooked Rice Converter

Dry rice kernels swell into a cooked volume

A cup of dry long-grain white rice usually becomes about 3 cups cooked. Brown rice and wild rice keep more bran and typically land near 3.5 cups cooked per cup dry. Those multipliers are what this page applies to the dry cups you enter.

USDA Food Buying Guide yield notes for child-nutrition kitchens track pounds of dry rice to cups cooked. A home pot is smaller, but the same idea holds: you buy dry and serve wet. Maryland Extension's household rice page tells families to read the bag and, as a general stove method, to cook 1 cup of rice in 2 cups of water for everyday white rice.

Batch-cooking on Sunday only works if the cooked-cup estimate is in the right neighborhood. A 2-cup dry pot of white rice is about 6 cups cooked, enough for several kid lunches if you cool it safely.

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How to use uncooked to cooked rice

Enter dry cups. Choose white long grain, brown, or wild. Read cooked cups. The water line uses 2 cups water per cup dry for white and 2.25 for brown (wild uses the same water hint as brown on this tool).

Rinsed rice packs differently in the cup. Level the dry cup before you rinse, or weigh using 185 g per cup of uncooked white rice if you want less air error.

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Formula and a 2 cup dry pot

Cooked cups = dry cups × 3 for white long grain. Cooked cups = dry cups × 3.5 for brown or wild. Water cups = dry cups × 2 for white, or dry cups × 2.25 for brown.

Two cups dry white rice: cooked = 2 × 3 = 6.0 cups. Water = 2 × 2 = 4.00 cups. Two cups dry brown: cooked = 7.0 cups. Water = 4.50 cups.

Food Buying Guide figures for some brown rice products run near 3 5/8 cups cooked per cup dry. This tool's 3.5 is the rounded home number next to that institutional range.

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Measuring dry rice so the yield matches

Use a dry cup, not a liquid pitcher, and level with a knife. Converted rice and instant rice are already processed. Their bag directions beat this 3× model.

Sushi rice and jasmine belong on the water-ratio page if the question is absorption, not leftover volume. Their cooked-cup yield is still in the 2.5 to 3 cup range, but the water they want is less than long-grain white.

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How much to pack in a thermos

A young child may eat 1/2 to 3/4 cup cooked rice with beans or chicken. That is about 1/6 to 1/4 cup dry white rice going into the pot for that one lunch, which is why people cook a larger pot and portion after.

If the cooked result is 6 cups and you only needed 2, plan leftovers on purpose. Cooling and storage matter more than the extra rice.

A rice bowl for a teenage athlete can be 1.5 to 2 cups cooked. That is 1/2 to 2/3 cup dry white rice. The toddler next to them may eat 1/3 cup cooked. Cook for the larger appetite and portion down. Do not cook two pots unless the types differ.

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Leftover rice is a food-safety food

Cooked rice is a known vehicle for Bacillus cereus toxin when it sits warm. ARS and FSIS researchers measured growth during slow cooling of rice and pasta. Home practice is simpler than their time-temperature curves: get the pot out of the danger zone.

FSIS leftover guidance: refrigerate within 2 hours of cooking (1 hour above 90 °F), use shallow containers, keep 3 to 4 days, reheat until steaming. Do not leave a rice cooker on "warm" overnight and then pack that rice into a Tuesday lunch.

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Rice is a grain, not a sugar tool

Dietary Guidelines count cooked rice in the grain group. Brown rice keeps more fiber. White rice is still a grain ounce-equivalent. Neither number on this page is an added-sugar result. Sweet rice pudding is a different label.

FoodData Central lists cooked white and brown rice per cup for nutrient lookups after you know the cooked volume.

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What to do with the extra cooked cups

Six cups of leftover white rice can become fried rice if you chill it first. Day-old rice fries better than fresh sticky rice. That chill is also the safety step. Do not fry rice that sat in the pot on the stove from lunch to bedtime.

Freeze cooked rice in 1 cup bags. A 1 cup bag is a kid lunch plus a little for you to taste. Flatten the bag so it thaws in the fridge overnight. Microwave from frozen only if you will eat it immediately and it steams all the way through.

Rice and beans in a thermos is a complete-looking lunch. The cooked-cup number tells you whether Tuesday and Wednesday are covered. Season with herbs from the herb converter rather than a sweet teriyaki sauce if you are already watching added sugars.

Brown rice in a thermos stays hotter longer than a thin soup, but it also sits in the danger zone longer if the thermos was never preheated. Pour boiling water in the thermos, dump it, then add the hot rice. The yield number did not change. The temperature did.

Wild rice blends sold for holidays include dried fruit in some boxes. That fruit can be sweetened. The 3.5× yield still estimates the grain. It does not count the fruit bits as extra cups of rice.

Rice cereal for infants is a different product. Do not use the 3× cooked-cup model to mix a bottle. Follow the cereal label and pediatric guidance. Those scoops are for infants, not for leftover fried rice packed on a Monday.

Seasoned rice packets can list added sugars. The yield math still runs. The sugar math belongs on the label-sugar page beside the pouch, not in the rice-yield box.

A burrito lunch that uses 3/4 cup cooked rice is 1/4 cup dry white rice going into the pot if you cook just one burrito. Nobody does that. Cook 1 cup dry, use 3 cups cooked across the week, and freeze the rest. The yield page exists so the week has a number.

Sticky short-grain rice for onigiri packs into shapes. The cooked-cup yield is still near 3×, but the water-ratio page should be on sushi if that is the grain you bought. Mixing the two pages is how you get either soup or chalk.

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Limits of 3× and 3.5×

A tight lid, a wide skillet, and a rinsed versus unrinsed cup all move yield. Parboiled (converted) rice often yields a little less fluffy volume. Wild rice blends sold with seasoning packets include salt and sometimes sugar. Read that packet.

Rice cookers mark water by their own lines. Those lines already include boil-off for that machine. If you use the cooker, trust the pot marks and use this page only to guess leftover cups.

NIST volume units define the cup. They do not swell the kernel. The swell is food science, and it varies by variety.

Rice cooked in broth is still leftover rice. Broth does not buy you extra hours on the counter. Cool it the same way, in a shallow box, within 2 hours.

A "ready rice" pouch is already cooked. Do not run 1 pouch through the dry-cup field as if it were 1 cup dry. You would invent a week of rice that is not in the house. Heat the pouch and count it as cooked cups only.

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How it works

Starch granules swell. Rinse, pot tightness, and rest time change the cup yield.

Frequently asked questions

• Is leftover rice safe for kids?

  Cool quickly and refrigerate. Reheat until steaming. Do not leave cooked rice at room temperature.

Related calculators

References

1. USDA Agricultural Research Service. FoodData Central
2. USDA Food and Nutrition Service. Food Buying Guide for Child Nutrition Programs
3. University of Maryland Extension. Cooking with Rice
4. NIST. SI Units - Volume
5. USDA and HHS. Dietary Guidelines for Americans, 2020-2025
6. USDA FSIS. Leftovers and Food Safety
7. Juneja, Mohr, Silverman, Snyder / USDA ARS and FSIS. Influence of cooling rate on growth of Bacillus cereus in cooked rice, beans, and pasta
8. USDA ARS. Measurement conversion tables