Sprouts punch well above their weight for nutrition, and their dietary fiber makes them a smart addition to salads, stir-fries, and grain bowls. This sprout fiber per 100 g calculator shows you exactly how much fiber different sprout varieties contain — from alfalfa and mung bean to lentil and Brussels sprouts — then scales that number to whatever serving size you actually plan to eat.
Fiber values are typical figures drawn from food-composition databases such as USDA FoodData Central, expressed per 100 grams of raw sprout. Because nutrient levels between brands and growing conditions always vary a little, we also included a custom-value mode: enter the fiber figure printed on your package label and the tool will use that instead. You'll see fiber per 100 g, fiber in your serving, and how much of the 28 g daily value that serving provides.
Whether you're tracking macros, planning a higher-fiber diet, or just curious how your favorite sprout compares, this calculator gives you a quick, concrete answer — no app or database browsing required.
🌱 Sprout Fiber Calculator
Estimate dietary fiber in sprouts per 100 g and for any serving size you plan to eat.
Step-by-Step Guide
Using the calculator takes about ten seconds. First, select the sprout you plan to eat from the dropdown — the list covers the most common varieties sold in supermarkets and farmers' markets, from mild alfalfa to dense, protein-rich lentil sprouts. Next, enter how many grams of sprouts you actually serve yourself. If you don't have a scale handy, the preset buttons (25 g, 50 g, 100 g, 150 g) give you sensible reference portions. If your package label lists a fiber value that differs from our typical figure, tick the "custom fiber value" box and type in the number from the label — this is especially useful for packaged sprout mixes or fortified products. Hit Calculate and the tool returns three numbers: fiber per 100 g of that sprout, the total fiber in your serving, and what percentage of the 28 g daily value that serving covers. The step-by-step breakdown shows the exact multiplication so you can spot-check the math, and the copy button drops a summary into your clipboard for your food diary.
For a sister view of the same ingredient, the sprout protein per 100 g calculator runs on the same per-100 g principle and is handy when you're balancing protein and fiber in the same meal.
Where the Fiber Numbers Come From
The baseline values in this calculator are typical figures for raw sprouts, drawn from national food-composition databases, most notably the USDA FoodData Central (FDC) reference set. For each sprout variety, the database averages multiple samples of raw product, which is why you'll occasionally see small differences between one published table and another — fiber content shifts with variety, growing conditions, maturity at harvest, and even the amount of water retained in the tissue. Sprouts are mostly water; a mung bean sprout can be over 90% water, which dilutes its nutrient density per 100 g and explains why a heavy, dense sprout like lentil shows so much more fiber than a featherweight like alfalfa.
Two things to keep in mind when reading the numbers. First, these values describe raw sprouts: cooking softens cell walls and can leach a little soluble fiber into cooking water, so a boiled or stir-fried serving may test slightly lower. Second, the 28 g daily value we use is the FDA reference for a 2,000-calorie diet; the Institute of Medicine's recommendation is 14 g per 1,000 calories — roughly 25 g for women and 38 g for men — so adjust your target to your energy intake. The NIH Dietary Fiber fact sheet explains the evidence behind these targets in detail.
Reference Table: Fiber in Common Sprouts
Fiber per 100 g of raw sprout, with the share of the 28 g daily value rounded to the nearest whole percent. Values are typical averages from food-composition databases; individual samples can vary.
| Sprout | Fiber (g / 100 g) | % Daily Value |
|---|---|---|
| Alfalfa sprouts | 2.1 | 8% |
| Mung bean sprouts | 1.8 | 6% |
| Broccoli sprouts | 2.6 | 9% |
| Brussels sprouts | 3.8 | 14% |
| Radish sprouts | 1.6 | 6% |
| Lentil sprouts | 7.8 | 28% |
| Pea sprouts | 2.5 | 9% |
| Sunflower sprouts | 3.6 | 13% |
| Soybean sprouts | 2.5 | 9% |
| Chickpea sprouts | 4.3 | 15% |
Example Calculations
Example 1 — A 100 g bowl of lentil sprouts. Lentil sprouts supply about 7.8 g fiber per 100 g. Since the serving is exactly 100 g, the math is 7.8 × 100 ÷ 100 = 7.8 g fiber. That's 7.8 ÷ 28 = 27.9%, so roughly 28% of the daily value in a single side dish — an impressive fiber-to-calorie trade.
Example 2 — 50 g of mung bean sprouts in a stir-fry. Mung bean sprouts carry about 1.8 g fiber per 100 g. For a 50 g handful: 1.8 × 50 ÷ 100 = 0.9 g fiber, about 3% of the daily value. It won't move your fiber target much on its own, but combined with other vegetables in the meal it adds up without adding many calories.
Example 3 — Label-based custom value. Suppose your packaged sprout mix states 3.2 g fiber per 100 g. Tick the custom box, enter 3.2, and ask for a 75 g serving: 3.2 × 75 ÷ 100 = 2.4 g, roughly 9% of the daily value. The calculator reports the label's number rather than our typical value, so your tracker stays consistent with what you actually bought.
Tips for Getting More Sprout Fiber
A realistic fiber target is around 25–38 g per day, and most adults fall short by a wide margin. Sprouts are one of the easiest ways to close that gap because they're low in calories, fast to prepare, and don't dominate a dish the way grains or beans can.
- Add a 50 g handful of mung bean sprouts to ramen, pho, or any noodle soup just before serving — they stay crunchy and add about 1 g of fiber.
- Use lentil or chickpea sprouts as the base of a warm salad; their higher fiber per 100 g makes them closer to a legume than a garnish.
- Stir sunflower or pea sprouts into sandwiches and wraps instead of lettuce; they hold up better and quietly raise the fiber count.
- Keep Brussels sprouts in rotation — although botanically a bud rather than a young shoot, they're the fiber heavyweight of the sprout family at 3.8 g per 100 g, and roasting makes them a weekly staple.
If you're also keeping an eye on calories, the broccoli calories per cup calculator follows the same per-serving approach and lets you compare how much energy you're getting for that fiber.
When you increase fiber, increase water gradually too. Fiber absorbs water in the digestive tract, so a sudden jump in sprout-heavy salads without extra fluid can cause bloating or discomfort. Work up to larger portions over a week.
Frequently Asked Questions
Are cooked sprouts lower in fiber than raw? Usually only slightly. Gentle cooking softens fiber but doesn't destroy it; the biggest losses come from boiling in a large volume of water and discarding that water, which removes some soluble fiber. Steaming or a quick stir-fry preserves most of the original content.
Why do lentil sprouts have so much more fiber than alfalfa sprouts? Density. Lentil sprouts are the sprouted seed itself — a small legume that's roughly a quarter protein and fiber by dry weight — while alfalfa sprouts are mostly stem and leaf tissue holding a lot of water. Per 100 g as eaten, the lentil has far more solid matter, hence far more fiber.
Do all sprouts count toward the same fiber goal? Yes. Soluble and insoluble fiber both count toward the 28 g daily value, and sprouts typically provide a mix of both — soluble fiber for gut bacteria and cholesterol management, insoluble fiber for regularity. The Institute of Medicine's 14 g per 1,000 kcal rule is the basis of most intake guidance, and you can read the practical details on the Academy of Nutrition and Dietetics site.
Is it safe to eat sprouts raw? Sprouts are grown in warm, humid conditions that can also suit bacteria, so public-health agencies advise children, older adults, and anyone pregnant or immunocompromised to avoid raw sprouts entirely, or to cook them thoroughly. If you're serving raw sprouts to a healthy adult, buy them refrigerated, keep them cold, and rinse them well before eating.