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Calories · Japanese

Calories in an onigiri

A typical restaurant serving of an onigiri (one convenience-store salmon onigiri wrapped in nori, about 100 g) is about 170 calories, usually 160–260.

Restaurant portions vary; this is a typical estimate, not a label. Also called Japanese rice ball, omusubi, salmon onigiri.

~170
Onigiri (rice ball)

The usual range

Drawn on one 0–2,000 scale shared by every dish page, so plates compare at a glance.

Protein, carbs and fat

  • Protein5 g
  • Carbs36 g
  • Fat2 g

One serving

Serving
one convenience-store salmon onigiri wrapped in nori
Weight
~100 g
Per 100 g
~170

The dish

About an onigiri

An onigiri is a hand-pressed triangle of rice around a filling, wrapped in nori. Plain onigiri is about 170 per 100 g in Japan’s food composition tables, and Seven-Eleven Japan’s salmon onigiri is 174. The filling is the only real swing: tuna mayo is about 258.

Ways it comes

One dish, a few numbers

Onigiri (rice ball) · rough numbers

  • Umeboshi (pickled plum)~170
  • Salmon~170
  • Tuna mayo~260

What moves the number

Why one plate is 160 and another 260

  • The filling: tuna mayo is the richest
  • Bigger “large” onigiri
  • Fried or tempura fillings

Ordering lighter

If you want a lighter plate

  • Pick salmon, kombu or umeboshi fillings
  • Pair it with miso soup instead of a second rice ball

Side by side

Next to other Japanese dishes

Japanese · typical restaurant servingAll about Japanese food →

  • Miso soup~50one bowl with tofu and seaweed · usually 30–90
  • Salmon nigiri~110two pieces, one plate · usually 70–150
  • Onigiri (rice ball)~170one convenience-store salmon onigiri wrapped in nori · usually 160–260
  • Salmon sashimi~220about 100 g of sliced raw salmon, roughly six to eight slices · usually 150–340
  • Shrimp tempura~240five pieces of shrimp tempura, dipping sauce and rice not included · usually 180–400
  • California roll~300one roll cut into 8 pieces · usually 230–420
  • Udon noodle soup~300one bowl of plain kake udon in dashi broth, no tempura or extra toppings · usually 250–650
  • Chicken karaage~310five pieces of fried chicken karaage · usually 230–500
  • Gyoza~310six pan-fried pork gyoza, dipping sauce not included · usually 200–480
  • Takoyaki~420one boat of 8 large takoyaki with sauce, mayo, aonori and bonito flakes · usually 250–650
  • Tonkatsu~420one fried pork cutlet, without the rice, soup and cabbage · usually 330–600
  • Okonomiyaki~510one pork-and-egg okonomiyaki (butatama) with sauce and a squiggle of mayo · usually 400–600

In PlateDiary

A rough number for the dishes you save — only if you want one.

Off unless you turn them on

Calories in PlateDiary are off unless you turn them on. Switch them on and, when PlateDiary AI reads your photo of the table, each dish gets one rough “~” number. Accept it or change it; a number you correct is remembered for that dish. With Calories off, the app looks exactly as it did before.

A read sends small pictures of the cut-out dishes, with the place's name as a hint — never the table photo, faces or your location. Calorie numbers never go to analytics, and nothing is written to a health app. PlateDiary AI starts with free tries; here is how it works.

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How these numbers were made

Method and sources

Last reviewed

Restaurant portions and cooking vary, so these are typical estimates for one serving, built from the sources below. Treat it as a rough number: your plate may land anywhere in the range.

If you manage a health condition, ask a doctor or registered dietitian.

AI helped draft this page; every number was checked against the sources.

  1. Japan MEXT Standard Tables of Food Composition (8th ed., 2023 supplement) — Onigiri (おにぎり), per 100 g
  2. Seven-Eleven Japan product page — Hand-rolled onigiri, grilled salmon (炭火焼紅しゃけ)
  3. Seven-Eleven Japan product page — Hand-rolled onigiri, tuna mayonnaise
  4. Seven-Eleven Japan product page — Hand-rolled onigiri, umeboshi

Questions

Questions people ask.

How many calories are in an onigiri?

A typical restaurant serving of an onigiri (one convenience-store salmon onigiri wrapped in nori, about 100 g) is about 170 calories, usually 160–260. The number depends mostly on the portion and how it is cooked.

How many calories are in one onigiri?

About 170 for a salmon, kombu or umeboshi onigiri, and about 260 for tuna mayo.

Is onigiri healthy?

It is mostly rice, with little fat: a salmon onigiri has about 2 g of fat and 5 g of protein. Fillings with mayonnaise change that the most.

What changes the calories in an onigiri?

The filling: tuna mayo is the richest. Bigger “large” onigiri.

How can I order an onigiri lighter?

Pick salmon, kombu or umeboshi fillings. Pair it with miso soup instead of a second rice ball.

Can PlateDiary show calories for the dishes I eat out?

Yes, if you want it to: calories in PlateDiary are off unless you turn them on. Switch them on and each dish you save from a photo of the table gets one rough “~” number you can accept or change.