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Rice to Water Ratio Calculator

Get the right rice to water ratio for your rice type, plus simmer time and cooked yield. Enter cups of rice and cook with confidence every time.

Rice to Water Ratio Calculator

Result will appear here...

SIMILAR TOOLS


Last updated: June 11, 2026

Created by: Eon Tools Dev Team

Reviewed by: Radu Vasile


What this does

So you have got the rice but you are never quite sure how much water to add, and the answer is not the same for every kind. This calculator sorts it out. Pick your rice type, tell it how many cups you are cooking, and it gives you the water to use, a simmer time, and roughly how much cooked rice you will end up with.

How to use it

  1. Select your rice type from the list.
  2. Enter the number of cups of rice.
  3. Press Calculate to see the water, simmer time, and cooked yield.

The amounts are for stove top cooking, where the lid stays on and the rice steams gently.

How the maths works

Each rice type has its own water ratio, and the tool multiplies your rice by it:

water = rice × ratio for that rice type

So white long grain rice uses about twice its volume in water, meaning 1 cup of rice to roughly 2 cups of water. Basmati is lighter on water, closer to 1.5 cups, sushi rice less again, and brown rice wants more water and a longer cook because of its bran. The cooked yield is an estimate of how much rice you will get once it has absorbed the water and expanded.

Why ratios vary

You may have heard the rule that rice always takes twice its volume in water. It is a handy starting point, but it is not the whole truth, which is why the tool asks for the type. Long grain, short grain, brown, and aromatic rices all drink different amounts.

And the type is not the only thing that shifts the number. Your pot and how well its lid seals, the strength of your simmer, your altitude, and even how old the rice is all change how much water evaporates versus soaks in. So treat the tool's figure as a reliable starting point, then nudge it up or down a little once you see how your own kitchen behaves. The packet your rice came in is worth a glance too.

Tips for better rice

A few habits go a long way. Rinse most rice under cold water until it runs clear, which washes off surface starch and stops the grains gluing together. Keep a tight lid on while it simmers so the steam stays in and the rice cooks evenly, and resist lifting it to peek. When the time is up, let it rest off the heat with the lid on for five to ten minutes before fluffing, which lets the grains finish and firm up. That rest is the step most people skip, and it is the one that gives you separate, fluffy rice.

Questions people ask

How much water for 1 cup of rice?

It depends on the type. Roughly 2 cups for white long grain, about 1.5 for basmati, and more again for brown rice. Pick the type and the tool gives you the right amount.

Should I rinse my rice?

For most rice, yes. Rinsing until the water runs clear removes excess starch and gives you fluffier, less sticky grains. Sushi rice is one where a little stickiness is wanted.

Why does brown rice need more water and time?

Because its bran layer is tougher and slower to absorb water, so it needs a bit more liquid and a longer simmer to cook through.


Radu Vasile

Radu Vasile is a gluten-free food creator from Romania who runs The GF Recipes and has built a global community of more than 100,000 followers across his blog, app, and social platforms. With over six years of experience creating food content, he brings practical knowledge of recipe, nutrition, and food focused utility needs. At Eon Tools, he reviews food tools.

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