Uncooked to Cooked Rice Converter
Calculate how much cooked rice you will get from uncooked rice. Different rice varieties absorb different amounts of water, so the expansion ratio varies from 2× for instant rice to 3.5× for wild rice. This converter gives you cooked volume, cooked weight, serving count, and the exact amount of water needed for perfect results. See also our Rice Water Ratio Calculator and Cooking Converter.
How to Convert Uncooked Rice to Cooked Rice
Rice expands significantly during cooking as it absorbs water. The expansion ratio depends on the rice variety, with long-grain rice typically tripling in volume and short-grain rice expanding about 2.5 times. Understanding these ratios helps you cook the right amount of rice for any number of people without waste.
- Measure your uncooked rice in cups or grams
- Identify the rice variety
- Multiply the uncooked amount by the variety-specific multiplier
- The result is the approximate cooked volume or weight
Formula:
Cooked Rice = Uncooked Rice × Multiplier
Example: 1 cup dry white long grain × 3 = 3 cups cooked rice
Why Different Rice Types Expand Differently
The expansion ratio depends on the starch composition and structure of the rice grain. Long-grain rice like basmati has more amylose starch, which absorbs water and expands significantly while remaining fluffy and separate. Short-grain rice has more amylopectin starch, which makes it stickier and slightly less expansive. Wild rice, which is technically a grass seed, has a very tough outer hull that absorbs water slowly, resulting in the highest expansion ratio (3.5×).
Instant rice has been pre-cooked and dehydrated, so it only needs to rehydrate rather than fully cook. This is why it has the lowest multiplier (2.0×) and the shortest cooking time. Brown rice retains its bran layer, which slows water absorption and requires more cooking time and water, but the final expansion is moderate (2.5×).
Worked Example: Rice for a Family of Four
A family of four wants rice as a side dish. Each person needs about ¾ cup of cooked rice. Total needed: 4 × 0.75 = 3 cups cooked. Using basmati rice (×3 multiplier): 3 cups cooked ÷ 3 = 1 cup dry basmati rice. Water needed: 1 cup × 1.75 ratio = 1.75 cups water. So cook 1 cup of dry basmati with 1¾ cups of water to get 3 cups of perfectly cooked rice for four people.
Uncooked to Cooked Rice Reference Table
| Rice Type | Multiplier | ½ Cup Dry → | 1 Cup Dry → | 2 Cups Dry → | Water Ratio |
|---|---|---|---|---|---|
| White Long Grain | ×3 | 1.5 cups | 3.0 cups | 6.0 cups | 2:1 |
| White Short Grain | ×2.5 | 1.3 cups | 2.5 cups | 5.0 cups | 1.5:1 |
| Brown Rice | ×2.5 | 1.3 cups | 2.5 cups | 5.0 cups | 2.5:1 |
| Basmati | ×3 | 1.5 cups | 3.0 cups | 6.0 cups | 1.75:1 |
| Jasmine | ×2.75 | 1.4 cups | 2.8 cups | 5.5 cups | 1.5:1 |
| Wild Rice | ×3.5 | 1.8 cups | 3.5 cups | 7.0 cups | 3:1 |
| Arborio (Risotto) | ×2.5 | 1.3 cups | 2.5 cups | 5.0 cups | 4:1 |
| Sushi Rice | ×2.5 | 1.3 cups | 2.5 cups | 5.0 cups | 1.2:1 |
| Instant Rice | ×2 | 1.0 cups | 2.0 cups | 4.0 cups | 1:1 |
Rice Serving Size Guide
The standard serving size for rice varies by context and culture. Here are common guidelines:
- USDA serving: ¼ cup dry (about ¾ cup cooked) = approximately 160-180 calories
- Side dish (Western): ⅓ cup dry (about 1 cup cooked)
- Main starch (Asian cuisine): ½ cup dry (about 1.5 cups cooked)
- Sushi rice per roll: About ⅓ cup cooked (slightly over ⅛ cup dry)
- Risotto serving: ⅓ cup dry arborio (about ¾ cup cooked with broth)
- Children (ages 4-8): 2-3 tablespoons dry (about ⅓-½ cup cooked)
Water-to-Rice Ratios by Type
Getting the water ratio right is crucial for perfectly cooked rice. Too much water makes rice mushy; too little leaves it crunchy. These ratios are for stovetop cooking with a lid:
- White long grain: 2 cups water per 1 cup rice — fluffy, separate grains
- White short grain: 1.5 cups water per 1 cup rice — slightly sticky
- Basmati: 1.75 cups water per 1 cup rice — light and aromatic
- Jasmine: 1.5 cups water per 1 cup rice — slightly sticky and fragrant
- Brown rice: 2.5 cups water per 1 cup rice — needs longer cooking (40-45 min)
- Wild rice: 3 cups water per 1 cup rice — longest cooking time (45-60 min)
- Arborio (risotto): 4 cups broth per 1 cup rice — added gradually while stirring
- Sushi rice: 1.2 cups water per 1 cup rice — firm and sticky
- Instant rice: 1 cup water per 1 cup rice — just needs rehydrating
Tips for Cooking Perfect Rice
- Rinse first: Rinse rice 2-3 times until water runs clear to remove excess starch (except for risotto)
- Soak basmati: Soak basmati rice for 20-30 minutes before cooking for longer, fluffier grains
- Do not lift the lid: Keep the lid on during cooking to maintain steam pressure
- Rest after cooking: Let rice sit covered for 5-10 minutes after turning off heat
- Fluff with a fork: Use a fork (not a spoon) to separate grains without crushing them
- Rice cooker adjustment: Rice cookers typically need slightly less water than stovetop methods
Frequently Asked Questions
How much cooked rice does 1 cup of dry rice make?
It depends on the rice type. White long grain rice triples to about 3 cups cooked. Basmati also triples. Short grain and brown rice yield about 2.5 cups. Wild rice yields about 3.5 cups. Instant rice only doubles to 2 cups. One cup of dry rice (185g) generally feeds 3-4 people as a side dish.
How much dry rice do I need for 2 cups of cooked rice?
For white long grain or basmati rice (×3 multiplier): 2 cups cooked ÷ 3 = about ⅔ cup dry rice. For brown rice or short grain (×2.5): 2 cups ÷ 2.5 = about ⅘ cup dry. For instant rice (×2): 2 cups ÷ 2 = 1 cup dry. Always round up slightly to ensure you have enough.
How many grams is 1 cup of uncooked rice?
One cup of uncooked rice weighs approximately 185 grams (6.5 ounces). This is fairly consistent across rice types, though wild rice is slightly lighter at about 160g per cup due to its elongated shape creating more air space. Cooked rice weighs about 185g × the multiplier (e.g., 555g for cooked white long grain).
Does rinsing rice affect the cooked volume?
Rinsing removes surface starch but does not significantly change the cooked volume or weight. However, rinsed rice produces fluffier, more separate grains, while unrinsed rice is stickier. For sushi rice, some stickiness is desirable. For pilaf or biryani, thorough rinsing is essential for separate grains.
How long does cooked rice last in the refrigerator?
Cooked rice lasts 4-6 days in the refrigerator when stored in an airtight container. Cool rice to room temperature within 1 hour of cooking before refrigerating (do not leave at room temperature longer than 1 hour due to Bacillus cereus bacteria risk). Frozen cooked rice lasts up to 6 months and reheats well in the microwave with a splash of water.
Why does my rice come out mushy or crunchy?
Mushy rice means too much water or too long cooking time. Crunchy rice means not enough water or not enough cooking time. Use the exact water ratios for your rice type, bring to a boil then reduce to lowest heat, keep the lid on, and do not stir during cooking. After the cooking time, let it rest 5-10 minutes with the lid on to finish steaming.