๐Ÿงฎ Calculators & Daily Life

Rice Cup & Water Calculator

Calculate rice and water amounts from go (ๅˆ) and firmness (firm/normal/soft). Your input never leaves your browser.

Examples (click to try)
โ€”
Rice (ml)
โ€”
Water (ml)
Rice (approx. weight)โ€”
Waterโ€”
Cooked yield (approx.)โ€”
Servingsโ€”

Related tools

๐Ÿ  Tsubo / mยฒ / Tatami ConverterConvert tsubo โ‡” mยฒ โ‡” tatami ๐Ÿ“ Unit ConverterLength, weight, temperatureโ€ฆ ๐Ÿณ Recipe Scaler & Unit ConverterScale servings & cooking units ๐Ÿ’ฑ Currency Converter (manual rate)Convert with a rate you enter ๐Ÿ“ Area & Volume CalculatorArea & volume of common shapes ๐ŸŽŽ Shichi-Go-San Year CalculatorWhen to celebrate 7-5-3 ๐Ÿ•ฏ๏ธ Memorial Service Date CalculatorBuddhist memorial dates from a date of death ๐ŸŽŒ Japanese Public HolidaysHoliday list & long weekends by year

How to use

It also shows grams, water (ml), cooked yield and rough servings together. Everything stays in your browser.

Enter the number of go or pick an example chip (1/2/3 go). Choose firmness (normal/firm/soft) and the rice (ml and g), water (ml), cooked weight and rough serving count all update together. For new-crop or rinse-free rice, nudge the firmness one step.

What is a go (ๅˆ)?

In Japan, uncooked rice is measured by volume in go (ๅˆ), not by weight. One go is 180 ml โ€” the size of the plastic cup that comes with every rice cooker โ€” so "2 go" means two level cups. This is smaller than the 240 ml US cup, and rice-cooker water lines are marked by go as well. This calculator uses the Japanese go, sets water to the same volume as the rice (the usual rice-to-water starting point), then adjusts it up or down for the firmness you want.

Worked examples

  • 1 go, normal โ†’ 180 ml rice (โ‰ˆ150 g) / 180 ml water / โ‰ˆ330 g cooked / 1โ€“2 servings
  • 2 go, normal โ†’ 360 ml rice (โ‰ˆ300 g) / 360 ml water / โ‰ˆ660 g cooked / 2โ€“4 servings
  • 3 go, firm (0.9) โ†’ 540 ml rice / 486 ml water (less than normal for a firmer bite)
  • 2 go, soft (1.1) โ†’ 360 ml rice / 396 ml water (for rinse-free rice or softer texture)

Adjust for the Rice and Cooker

The displayed water amount is a starting point for ordinary white rice. Rinse-free rice, new-crop rice, aged rice, brown rice, mixed rice, and pre-soaked rice can need different water. If the cooker provides fill lines or a dedicated program, follow its manual and measuring cup first.

Serving counts depend on bowl size and appetite and are not a nutritional recommendation. Use the Recipe Scaler when resizing a complete meal.

FAQ

Is my data sent to a server?
No. Everything runs in your browser; nothing is transmitted or stored externally.
How many ml and grams is 1 go?
One Japanese rice cup (go) is 180 ml by the standard measuring cup. The weight varies a little by rice type, but uncooked it is roughly 150 g.
How is the water amount decided?
The base is the same volume as the rice (about 180 ml per go). This tool adjusts water by firmness: normal = 1.0, firm = 0.9, soft = 1.1. Use a little less for new-crop rice and about 10% more for rinse-free rice.
What is the cooked yield and serving count?
Uncooked rice gains about 2.2ร— in weight when cooked, so 1 go yields roughly 330 g. At about 150 g per bowl, 1 go is about 2 bowls โ€” around 1โ€“2 servings.
Can I measure rice with a 200 ml cup?
One Japanese rice cup (go) is 180 ml, so a level 200 ml cup holds about 1.11 go. To use these numbers as-is, measure with the 180 ml cup that came with your rice cooker. With a 200 ml cup, multiply the number of cups by 1.11 and enter that as the go value. Too much rice with water for one go leaves the grains hard in the middle.
Does it work for small amounts such as 0.5 go?
Yes. Half a go is 90 ml of rice (about 75 g) with 90 ml of water and roughly 165 g cooked, which fills about one bowl. Note that rice cookers have a minimum batch size, and below it the water lines inside the pot no longer apply, so the result becomes unreliable. Check the minimum for your model before cooking a small batch.