SushiWise guide
Onigiri calories: the rice ball
Onigiri is a rice ball, often triangular, wrapped in seaweed with a filling such as salmon, tuna, or umeboshi. Calories depend mostly on the rice and the filling.
Common onigiri
The main component is rice: a standard onigiri contains a substantial portion, so it's higher in calories than a single nigiri.
Lean fillings (umeboshi, tuna in water) add little; those with mayo or fatty salmon raise the estimate.
Onigiri is meant as a single, filling portion: in a dinner total it's best added as its own item, like a temaki.
| Type | Estimate per piece |
| Plain onigiri | 150–200 kcal |
| Salmon onigiri | 170–230 kcal |
| Tuna and mayo onigiri | 190–260 kcal |
The size of the ball and the amount of rice matter a lot.
Frequently asked questions
- How many calories are in an onigiri?
- An onigiri is roughly estimated at 150 to 260 kcal per piece, depending on size and filling. Rice is the main source.
- Is onigiri higher in calories than nigiri?
- Yes, because it holds a much larger portion of rice. Nigiri has only a small block of rice with a slice of fish.
- Is onigiri a good snack?
- It can be a single, filling portion. As always, quantity and overall balance matter; the calculator helps place it within your dinner.
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Calculate your dinner →Calories are average estimates and may vary depending on ingredients, portion size, rice quantity, sauces, and restaurant preparation. This tool does not replace medical or nutrition advice.