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Sushi calories: rolls and nigiri, piece by piece

October 2, 2026 · Viral Tandel

Sushi calories are easier to pin down than almost anything else in a Japanese restaurant, because the United States Department of Agriculture publishes twelve separate sushi entries with a per piece gram weight attached to each one. That is unusual. Most restaurant food gets one vague database entry, if it gets one at all.

Key takeaways

• USDA weighs a roll piece at 30 g and a nigiri piece at 35 g, so per piece figures here are conversions USDA's own portion data supports, not guesses.
• Across eight roll types the spread is narrow: about 20 to 35 kcal a piece. What is inside matters less than people expect.
• Nigiri reads higher per piece mainly because the piece is heavier, not because it is richer.
• Nothing in this table includes soy sauce, spicy mayo, eel sauce or tempura. Those are the figures that actually move your day.
• Rice is the bulk of every number here, which is why a vegetable roll is not the saving most people assume it is.

Sushi calories per piece, by roll

Every figure below is USDA FoodData Central, per 100 g, converted to a piece using the gram weight USDA publishes for that same entry. Roll pieces are 30 g except the vegetable roll, which USDA weighs at 22 g.

A six piece California roll comes to about 170 kcal on this basis. Eight pieces is about 226. A six piece eel roll is about 209.

Notice how little distance there is between the top and the bottom of that list. A tuna roll and a California roll are three calories a piece apart. The thing people reach for, swapping to a leaner fish, barely moves the number, because the rice is doing most of the work in every row.

Nigiri runs higher, and the reason is boring

Per 100 g, nigiri and rolls sit in the same band. Per piece, nigiri reads 20 to 40 percent higher simply because USDA weighs the piece at 35 g rather than 30 g, and the tamago piece at 50 g. The egg nigiri looks like the outlier of the whole article at 60 kcal, and most of that gap is the extra 15 g of food.

This is the single most useful habit to take from the table: when two figures disagree, check whether you are comparing the same weight of food before you conclude anything about the ingredients.

What the table does not cover

Three things, and they are bigger than the differences inside the table.

Sauces. Spicy mayo, eel sauce and dynamite sauce are added after the roll is built, so none of them are in a USDA sushi entry. These are also the items least likely to have a figure you can cite anywhere.

Tempura and cream cheese. A shrimp tempura roll or a Philadelphia roll is a different food from the entries above, not a variation on them. USDA does not publish either, so this site will not give you a number for them. Scan the plate or log the components you can identify.

Piece size. USDA's 30 g piece is modest against what many American sushi counters serve. If your piece is visibly larger, scale the per 100 g column rather than using the per piece column, and write down the gram basis you used so next week's entry means the same thing. This is the same discipline that makes logging a Chinese takeaway workable.

How to log a sushi meal without overthinking it

Count pieces, not rolls. Pick the closest row above, multiply, and add a separate line for any sauce you can identify. If the roll is fried or has cream cheese in it, treat the table as a floor rather than an answer.

That approach is the same one that works for a restaurant meal with no barcode: name the parts you can source, be explicit about the parts you cannot, and keep the method identical every time so your week is comparable with itself.

If you would rather not do the arithmetic at the counter, KalTrack reads the plate and shows you what it recognised, so you can correct a piece count before it lands in your day. Point it at your next roll.

This is general information about published nutrition data, not medical advice. If you are managing a health condition or following a prescribed diet, talk to a clinician or a registered dietitian.