The two-to-one rule that gets repeated everywhere is roughly right for one kind of rice cooked one way. Brown rice needs considerably more, short grain needs less on purpose, and whether you rinsed changes the answer again.
The calculator below accounts for all of those. Our roundup of fuzzy logic rice cookers covers machines that adjust automatically.
Quick Answer
Long grain white rice takes roughly one and a half parts water to one part rice in a rice cooker. Brown rice needs about twice. Short grain and sushi rice need slightly less than long grain. Stovetop needs a little more than a cooker because steam escapes.
Key Points
- Rice type moves the ratio more than anything else.
- Brown rice needs far more water because the bran slows absorption.
- Short grain uses less deliberately, since stickiness is the goal.
- Rinsing removes surface starch and changes water needs slightly.
- Stovetop loses steam that a sealed cooker keeps.
Ratios by Rice Type
| Rice | Water to rice |
|---|---|
| Long grain white | About 1.5 to 1 |
| Jasmine | About 1.25 to 1 |
| Basmati | About 1.25 to 1 |
| Short grain / sushi | About 1.2 to 1 |
| Brown rice | About 2 to 1 |
| Wild rice blend | About 1.75 to 1 |
Why Brown Rice Needs More
Brown rice keeps its bran layer, which white rice has had removed during milling.
That layer is largely intact fiber, and water has to work through it before reaching the starchy interior where absorption actually happens.
The result is both more water and more time, since the grain hydrates more slowly rather than simply holding more.
Cooking brown rice on a white rice setting or timing is the usual cause of grains that stay hard in the center while the pot looks done.
Soaking beforehand shortens the cooking time by starting the hydration early. Our roundup of rice cookers for brown rice covers machines with dedicated settings.
Short Grain Is Meant to Be Sticky
Less water, tighter texture
The stickiness is the point.
Higher amylopectin starch
Which is what makes grains cling.
Rinsing still matters
Removes excess surface starch, not the internal kind.
Sushi rice goes further
Seasoning is added after cooking.
What Rinsing Actually Does
Rinsing washes loose starch off the outside of the grains, and it changes two things.
The finished rice is less gluey, since that surface starch would otherwise thicken the cooking water into something that coats every grain.
Water needs shift slightly as well, because rinsed rice arrives in the pot already carrying some water on and just inside the grain.
How much difference this makes depends on the rice. Heavily milled supermarket long grain sheds a lot of starch, while some rice is sold pre-rinsed and needs none.
For dishes where separate grains are the goal, rinsing until the water runs mostly clear is the usual advice. Our roundup of rice cookers for sushi rice covers the sticky end of the range.
Method Changes the Number
The same rice needs different water depending on what it is cooked in, because the difference is about what escapes.
A rice cooker seals reasonably well and recycles most of its steam, so very little water leaves the system.
A stovetop pot loses steam around the lid throughout cooking, which is why stovetop recipes generally call for slightly more water than cooker instructions for the same rice.
A pressure cooker loses almost nothing and cooks faster, so it typically needs slightly less than either.
Lid fit matters more than pot material here. A heavy lid that sits flush changes the requirement more than switching between pans does. Our roundup of large rice cookers covers batch capacity.
Measuring by Cup Is Fine Here
Baking demands weight, and rice is the rare case where volume works well enough.
Rice grains are uniform in a way flour is not, so a cup of rice weighs close to the same each time regardless of how it was scooped.
The ratio is also expressed as volume against volume, which means any consistent measure works as long as the same one is used for both.
The cup that ships with a rice cooker is usually smaller than a standard US cup, and machine markings assume that smaller cup rather than a measuring cup from a drawer.
Mixing the two is a common cause of results that seem wrong despite following the manual exactly.
Absorption Versus Draining
Everything above assumes the absorption method, where the rice takes up all the water in the pot.
The other approach cooks rice in abundant water like pasta and drains it, which makes the ratio irrelevant.
Draining suits basmati particularly well, since it rinses away more starch and produces very separate grains.
The tradeoff is that some starch and a little nutrition leave with the water, and the timing has to be judged rather than left to a machine.
Most rice cookers assume absorption, which is why they have no way to handle the drained method at all.
Why Your Rice Might Still Be Wrong
Ratios get you close, and a few things move the target after that.
Rice age matters. Older rice has dried further and absorbs more water than a freshly harvested batch, which is why the same bag can behave differently as it empties over months.
Altitude changes the boiling point, so rice cooked at elevation needs more water and longer than the same rice at sea level.
Batch size has a small effect too, since a larger volume loses proportionally less to evaporation.
Resting off the heat for a few minutes before lifting the lid lets the last of the moisture distribute, and skipping it is a common cause of a wet bottom layer under drier grains above.
Adjusting for the Texture You Want
Once the rice is cooking through properly, small ratio changes shift texture in a predictable direction.
A little less water gives firmer, more separate grains, which suits fried rice and anything the rice has to hold up in.
A little more gives a softer, stickier result, which suits eating with chopsticks or spooning sauce over.
Changes on the order of a tablespoon or two per cup of rice are enough to notice, so adjustments should be small.
Keeping a note of what worked for a particular bag saves rediscovering it each time, since the same brand tends to behave consistently until it dries out.
Common Mistakes to Avoid
Using two to one for everything
That figure suits some long grain white rice. Brown needs more, short grain needs less.
Cooking brown rice on a white rice setting
The bran slows absorption, so it needs more water and more time. A white setting stops too early.
Skipping the rest
Lifting the lid immediately leaves moisture unevenly distributed, wet at the bottom and drier on top.
Assuming a bag behaves the same all year
Rice dries as it sits, and drier rice absorbs more water than it did when opened.
Recommended Reading
See our roundup of mini rice cookers, our roundup of induction heating rice cookers, our guide on organizing your kitchen, and our roundup of mixing bowl sets.
Rice Ratio FAQ
Is the rice to water ratio always two to one?
No. That suits some long grain white rice. Brown rice needs about twice its volume, and short grain needs less than long grain.
How much water for brown rice?
Roughly twice the volume of rice, and longer cooking. The intact bran layer slows water reaching the starchy interior.
Does rinsing change how much water I need?
Slightly. Rinsed rice arrives carrying some water already, and removing surface starch changes the finished texture more than the quantity.
Why does stovetop need more water than a rice cooker?
Steam escapes around the lid throughout cooking, while a cooker recycles most of it. A pressure cooker loses less again.
Why is my rice wet at the bottom?
Usually skipping the rest. Leaving it off the heat with the lid on for a few minutes lets moisture distribute evenly.
Does old rice need more water?
Yes. Rice dries as it sits, so a bag opened months ago absorbs more than it did when new.
Does altitude affect it?
It does. A lower boiling point at elevation means more water and longer cooking for the same result.
How much does dry rice yield?
Roughly triple its dry volume for white rice, and a little more for brown.
