Wondering whether your sushi habit is helping you hit your daily fiber target? The Sushi Fiber Per 100g Calculator gives you a fast, practical estimate of the dietary fiber in your favorite sushi rolls, based on roll type, serving size, and optional sides. Because fiber values vary widely between a plain white-rice nigiri and a brown-rice veggie roll, this tool lets you compare options side by side and plan a meal that genuinely supports your digestive health.
Sushi isn't usually considered a high-fiber food — white sushi rice is refined and low in fiber. But rolls packed with avocado, cucumber, nori, and other vegetables, or made with brown rice, can add useful grams of fiber. The calculator converts your serving into fiber-per-100g figures and totals your fiber for the meal, including any high-fiber extras you add. It also shows the percentage of the recommended daily value (based on a 28g fiber target), so you can see how one sushi lunch fits into your day.
See how much fiber your sushi meal provides — and how it compares per 100 grams.
Reference Fiber Values for Common Sushi
Not all sushi is equal when it comes to fiber. White sushi rice is made from polished grains, so it contains mostly carbohydrates with only about 0.3 g of fiber per 100 g of cooked rice. The fiber in a roll usually comes from the toasted nori wrapper, the vegetables inside, and any brown rice used in place of white rice. The table below lists the approximate fiber content for common sushi choices as used in the calculator.
| Sushi selection | Fiber per 100 g (approx.) |
|---|---|
| Nigiri — white rice, fish | 0.3 g |
| Salmon or tuna roll — white rice | 0.5 g |
| Cucumber roll — white rice | 0.7 g |
| California roll | 1.1 g |
| Avocado roll — white rice | 1.2 g |
| Vegetable roll — white rice, mixed veg | 1.3 g |
| Brown rice salmon avocado roll | 2.0 g |
| Brown rice vegetable roll | 2.4 g |
| Seaweed salad (wakame) | 3.6 g |
How the Calculator Works
The calculator uses a simple proportion to estimate fiber:
Sushi fiber (g) = serving weight (g) × fiber per 100 g ÷ 100
If you enter the serving in ounces, the calculator first converts ounces to grams using 1 oz = 28.35 g. If you enter pieces, it assumes 1 sushi piece weighs about 25 g — a common average for a standard maki roll slice. The optional sides are added separately with their own fiber and weight contributions.
Because the extras add both fiber and weight, the final fiber-per-100g figure is calculated on the combined meal weight:
Combined fiber per 100 g = (sushi fiber + extra fiber) ÷ total weight × 100
The daily-value percentage uses a 28 g fiber target, matching the US FDA Daily Value for dietary fiber in nutrition labeling. Your personal target may be higher or lower depending on age, sex, and energy needs. The dietary guidelines have healthy adults aim for roughly 14 g of fiber per 1,000 calories consumed. See the FDA Daily Value explanation and Harvard's fiber page for more detail.
Step-by-Step Example
Example: You eat a 200 g brown-rice vegetable roll (2.4 g fiber per 100 g) and a 30 g edamame side (1.6 g fiber).
- Sushi fiber = 200 × 2.4 ÷ 100 = 4.8 g
- Edamame fiber = 1.6 g
- Total fiber = 4.8 + 1.6 = 6.4 g
- Total meal weight = 200 + 30 = 230 g
- Combined fiber per 100 g = 6.4 ÷ 230 × 100 = 2.8 g
- % Daily Value = 6.4 ÷ 28 × 100 = 23%
That lunch delivers nearly a quarter of the reference daily fiber target.
Tips for a Higher-Fiber Sushi Meal
- Choose brown rice when possible. Swapping white rice for brown rice roughly doubles or triples the fiber content of a roll.
- Add avocado and cucumber. Avocado contributes about 6.7 g of fiber per 100 g, and cucumber adds a useful amount. Rolls with extra vegetables are easy winners.
- Start with seaweed salad. Wakame is naturally rich in soluble fiber, and even a 50 g side adds close to 2 g.
- Order no-rice options. Naruto-style rolls wrapped in cucumber or rolls wrapped in tofu skin can be much higher in fiber and lower in refined carbohydrate.
- Save room for edamame or steamed greens. Edamame provides protein and fiber in one package.
Frequently Asked Questions
Is sushi a good source of fiber? Plain white-rice sushi is generally low in fiber. A 6-piece salmon roll might provide roughly 1–2 g of fiber, while a brown-rice veggie roll can provide 4–6 g. It depends heavily on the ingredients and portion size.
Why does the fiber-per-100g value change when I add extras? Because the extras add fiber and weight to the meal. The calculator shows the fiber density of the whole meal, which is more meaningful when comparing it to other complete dishes.
How accurate are the fiber estimates? Values are estimates, not lab measurements. Restaurant sushi can vary in rice amount, fillings, sauces, and portion size. For packaged sushi, check the nutrition label; for restaurant rolls, use the calculator as a planning tool rather than a precise lab result.
What is a good daily fiber target? The FDA sets the Daily Value at 28 g for a 2,000-calorie diet, while the Academy of Nutrition and Dietetics commonly recommends 25 g for women and 38 g for men. Use the %DV in the calculator as a rough yardstick.
For another quick fiber estimate, try the cracker fiber per 100g calculator. You can also check USDA's FoodData Central to look up specific sushi ingredients.