Translation guide
In Japanese, a single serving of rice is typically expressed with specific counters and words that reflect the form and context of the rice. The most common way is to use the counter 膳 (ぜん) for a bowl of rice, or 杯 (はい) for a bowlful. The word 一膳 (いちぜん) is standard when referring to one bowl of cooked rice served in a rice bowl. For uncooked rice or when emphasizing the grain, different terms apply.
The most common way to refer to a single serving of cooked rice as served in a typical Japanese meal.
This is the standard counter for a bowl of rice. 膳 is the counter for bowls of rice, and 一膳 means one bowl. It is used when ordering or referring to a serving of rice in a bowl.
One bowl of rice, please.
One bowl of rice isn't enough.
Literally 'one cup of rice', but commonly used to mean a bowl of cooked rice. 杯 is a general counter for cupfuls or bowlfuls. This is more casual and can be used in everyday speech.
I only eat one bowl of rice in the morning.
Uses the loanword ライス for rice, often in restaurant settings or when referring to Western-style meals. 一杯 means one bowlful.
It comes with one serving of rice for lunch.
When rice is served as part of a set meal (定食) or on a plate, the counter 膳 may still be used, but other expressions are common.
When referring to a single serving of uncooked rice, typically measured in 合 (ごう), the traditional unit.
一合 is the standard unit for measuring uncooked rice. One 合 is about 150g of uncooked rice, which yields roughly two bowls of cooked rice. It is the base unit for rice cooker measurements.
Please cook one cup of rice.
Explicitly says 'one 合 of uncooked rice'. 米 means uncooked rice.
One cup of uncooked rice is about 150 grams.
When emphasizing a single grain of rice, either cooked or uncooked.
一粒 means 'one grain'. It can be used for rice or other small granular items. For rice, it specifically refers to a single grain.
Eat every single grain of rice.
Explicitly says 'one grain of uncooked rice'. 米 is uncooked rice.
Let's be grateful for even a single grain of rice.
膳 (ぜん) is the specific counter for bowls of rice, while 杯 (はい) is a general counter for cups or bowls of any food or drink. Using 膳 is more precise and traditional, but 杯 is widely understood and used in casual contexts. In restaurants, 膳 is common when ordering Japanese-style meals, while 杯 may be used in more casual eateries or when referring to donburi (rice bowl dishes).
When ordering a single serving of rice at a restaurant, you can say ご飯一膳ください (ごはんいちぜんください) or simply ライスください. Many set meals already include rice, so you may only need to specify if you want an extra serving (おかわり).