Rice Water Ratio Calculator
Water, cooked yield, and servings from dry rice cups and type.
What it does
Rice scales on two ratios: water in and cooked rice out. White rice simmers 1 cup dry in 2 cups water and lands near 3 cups cooked, so 2 cups dry with 4 cups water feeds 12 half cup servings. The tool above runs both ratios for white and brown.
The default is a family dinner of white: 2 cups dry, 4 cups water, 6 cups cooked, 12 servings. Brown runs thirstier and longer at 2.5 waters per cup with about 4 cooked cups back, chewy from the intact bran. Both start with a boil, then a covered simmer until absorbed.
Extension kitchens agree on the stovetop numbers. Maryland guidance cooks 1 cup rice in 2 cups water with 1 cup dry equaling 3 cooked, while Utah State tables give white 1 to 2 yielding 3 cups and brown 1 to 2.5 yielding 4 cups in 45 minutes. Package directions still win for parboiled and aromatic varieties.
Servings here mean half cup cooked scoops, the standard side portion. Mains want double, near a full cup each, so halve the servings line for bowls and burritos. Leftovers chill fast and reheat past steaming for safety.
How to use
- Type dry rice in cups.
- Pick white or brown.
- Read water first and measure it.
- Read cooked cups to pick the pot.
- Read servings to plan the table.
Formula
- water
- Cups of cold water or broth.
- cooked
- Cups after simmering and resting.
- servings
- Half cup cooked portions.
Stovetop covered simmer. Rice cookers and pressure cookers lose less steam and need less water; packages override these ratios.
Worked example
Example: 2 cups dry white rice
Defaults: 2 cups, white.
- Water: 2 x 2 = 4 cups.
- Cooked: 2 x 3 = 6 cups.
- Servings: 6 x 2 = 12 servings.
- Method: boil, low simmer covered, rest off heat.
- Tool shows 4 cups, 6 cups, 12 servings.
Reference table
| Dry | Water | Cooked |
|---|---|---|
| 1 cup | 2 cups | 3 cups |
| 2 cups | 4 cups | 6 cups |
| 3 cups | 6 cups | 9 cups |
| 4 cups | 8 cups | 12 cups |
Limits
- Stovetop ratios; cookers and altitude differ.
- White and brown only; wild and parboiled vary.
- Servings assume half cup sides.
- Rinsing and soaking shift absorption slightly.
Common mistakes
- Lifting the lid to peek during simmer.
- Stirring after the boil, which gums grains.
- Eyeballing water instead of measuring.
- Cooking brown on white timing.
- Leaving cooked rice warm for hours.
Try it yourself
Quick checks. Answers sit tucked under each question.
1 cup dry brown rice?
2.5 cups water, 4 cups cooked, 8 servings.
3 cups dry white rice?
6 cups water, 9 cups cooked, 18 servings.
Half cup dry white?
1 cup water, 1.5 cups cooked, 3 servings.
Questions
Water for 2 cups white rice?
4 cups water for about 6 cups cooked.
Brown rice ratio?
1 to 2.5 with about 45 minutes simmer.
How much does 1 cup dry make?
3 cups cooked white, 4 cups brown.
Do I rinse first?
Rinsing clears surface starch for fluffier grains.
Why rest off heat?
5 to 10 minutes evens moisture without packing.
How long do leftovers keep?
Chill fast, refrigerate days, reheat steaming.