Rice Water Ratio Calculator
Enter how much rice you are cooking and your water ratio to get the exact amount of water — so the rice comes out fluffy instead of mushy or dry.
Water for any amount of rice
Enter the rice amount and your water ratio and the calculator returns the water you need — 1 cup of rice at 2:1 takes 2 cups of water.
Match the rice
The ratio depends on the grain — about 2:1 for white rice, 1.5:1 for basmati, and 2.5:1 for brown rice. Pick the one that fits your rice.
What is the rice water ratio?
Water per part of rice
The rice water ratio is how much water you use for each part of rice, and it is the single number that decides whether your rice turns out fluffy, mushy, or dry. The rice water ratio calculator turns two figures — the amount of rice you are cooking and your chosen ratio — into the exact amount of water to add. Because a ratio is just a proportion, it works the same in cups, grams, or millilitres, as long as you measure rice and water in the same unit. It is the number behind every reliable pot of rice, from a quick weeknight side to a batch of basmati for biryani.
Enter the amount of rice and your water ratio to get the exact amount of water instantly.
The water you need is simply the amount of rice multiplied by the water ratio — the parts of water per part of rice.
water = rice × ratioThe ratio is the lever: a higher ratio adds more water and softer rice, a lower ratio gives firmer, drier grains. Keep the same unit for both the rice and the water, and the answer comes back in that unit — cups of rice in, cups of water out.
Suppose you are cooking 1 cup of long-grain white rice at the classic 2:1 ratio.
Start with the rice amount
1 cup of dry rice — the amount you measured into the pot.
Pick the water ratio
2 — two parts water per part rice, the usual choice for white rice.
Multiply
1 × 2 = 2 cups of water — the amount to add to the pot before you simmer.
The water amount is the figure to pour into the pot, and the right ratio depends mostly on the type of rice. Long-grain white rice is typically around 2:1 — two cups of water for every cup of rice. Basmati, especially when rinsed or soaked, needs less and sits closer to 1.5:1, which keeps the long grains separate rather than sticky. Brown rice keeps its bran layer, absorbs water more slowly, and needs more liquid at about 2.5:1 along with a longer cook. Within each type you can nudge the ratio to taste: a touch more water for softer, stickier rice, a touch less for firmer grains. Because the formula is a straight proportion, doubling the rice doubles the water — 2 cups of white rice at 2:1 simply needs 4 cups of water — so the calculator scales cleanly from a single portion to a large batch.
The ratio gives you a dependable starting point, but a few real-world factors shift how much water actually ends up in the rice.
Absorption method, evaporation, and rinsing
These ratios assume the absorption method, where all the water is soaked up in a covered pot — if you boil rice in plenty of water and drain it like pasta, the ratio no longer applies. Your pot, lid, heat, and altitude change how much water evaporates: a loose lid or high heat boils more off and leaves rice dry, while a tight lid and gentle simmer hold more in. Rinsing rice first removes surface starch and can change how much water it needs, so treat the calculated amount as a starting point and fine-tune to your kitchen.