Radishes are crunchy, peppery root vegetables that are remarkably low in fat. This Radish Fat Calculator shows exactly how many grams of total and saturated fat are in a serving of red radishes, daikon, or radish greens — whether you are tracking macros, following a low-fat eating plan, or just curious about a vegetable that often gets rounded to "zero fat" in food diaries.
Enter the amount you plan to eat, choose the unit, pick the radish variety, and hit Calculate. The tool converts your portion to grams, then reports total fat, saturated fat, calories from fat, and the share of the daily 78 g fat reference value used on Nutrition Facts labels.
Because radish fat is nearly invisible, this calculator is also handy for recipe math — scale up a slaw, salad, or banh mi batch and see whether the radishes themselves move your fat budget. Added oil, butter, and dressing are not included.
🥬 Radish Fat Calculator
Estimate the fat content of red radishes, daikon, and radish greens from the portion you actually eat.
1. Choose your portion
2. Select radish type
How to Use This Calculator
Enter the amount you plan to eat and the tool handles unit conversion and nutrient math. It works equally well for a single snack portion, a salad for two, or a whole batch of pickled daikon.
- Type the portion amount — for example 100, 1.5, or 250.
- Choose the matching unit: grams, ounces, kilograms, cups of sliced radish, or count-based units such as a medium radish, large radish, or bunch.
- Select the radish type — red globe radish, daikon, or radish greens.
- Click Calculate fat to see total fat, saturated fat, calories from fat, and the share of the 78 g daily fat reference value.
Nutrient Data Behind the Numbers
The calculator is built on per-100 g figures for raw vegetables, averaged from USDA FoodData Central. Thinking in per-100 g terms keeps recipe math simple — a 200 g portion doubles the table values below. These numbers describe the raw vegetable flesh before any oil, dressing, or pickling brine is added.
| Radish type (raw) | Energy | Total fat / 100 g | Saturated fat / 100 g |
|---|---|---|---|
| Red globe radish | 16 kcal | 0.10 g | 0.032 g |
| Daikon radish | 18 kcal | 0.10 g | 0.036 g |
| Radish greens | 23 kcal | 0.30 g | 0.050 g |
How the Calculation Works
The tool runs three steps. First it converts your portion to grams: ounces are multiplied by 28.35, kilograms by 1,000, one US cup of sliced radish is treated as 116 g, a medium radish as 4.5 g, a large radish as 9 g, and a bunch as six medium radishes (27 g).
Next, it multiplies the gram weight by the variety's total fat per 100 g and divides by 100 to get fat grams. Finally, fat grams are multiplied by 9 to get calories from fat, and divided by 78 g to get the percent of the daily value. Saturated fat is reported with the same per-100 g method, so the math stays transparent and easy to check by hand.
Worked Examples
1 cup of sliced red radishes (116 g): total fat = 116 × 0.10 ÷ 100 = 0.12 g; saturated fat = 116 × 0.032 ÷ 100 = 0.04 g; calories from fat ≈ 1 kcal.
Half a bunch of daikon (≈81 g): total fat = 81 × 0.10 ÷ 100 = 0.08 g; calories from fat ≈ 0.7 kcal, or roughly 0.1% of the daily fat value.
100 g of radish greens: total fat = 100 × 0.30 ÷ 100 = 0.30 g; saturated fat = 0.05 g.
Common Mistakes to Avoid
- Forgetting that the calculator covers the radish alone — oil, butter, dips, and dressing add fat quickly and dwarf any radish contribution.
- Confusing a bunch with a cup. A bunch of six medium radishes weighs roughly 27 g, while a cup of sliced radish weighs about 116 g.
- Treating the "0 g fat" line on packaged labels as proof a whole dish is fat-free; that claim applies to one serving of the vegetable, not the finished meal.
Frequently Asked Questions
Are radishes actually fat-free? No food is perfectly fat-free, but radishes are close. A 100 g serving of red radishes contains about 0.10 g of total fat — far below the 0.5 g threshold the FDA uses to round a nutrient value to zero on labels.
Do cooked radishes contain more fat? The vegetable itself changes little when cooked. The fat comes from what you cook it in — roasting radishes in oil adds roughly 4 g of fat per teaspoon of oil used.
What about radish greens? The leafy tops are slightly richer, at about 0.30 g of fat per 100 g raw, but still negligible. They are more useful for vitamin C, calcium, and fiber than for fat.
Why bother reporting such tiny numbers? Because recipes add up. A large slaw made with ten cups of sliced radish contributes about 1.2 g of fat before dressing — small, but not zero, and macro counters who log everything appreciate the precision.
Additional Resources
The per-100 g values used here come from the USDA FoodData Central database, the standard reference for food composition in the United States. You can look up packaged, pickled, and other radish products in the USDA FoodData Central public search.
For the rules behind the 78 g daily value for total fat and the rounding guidance for "0 g" claims, see the FDA Nutrition Facts Label page. For a broad look at radish varieties and history, the Wikipedia article on radishes is a good starting point.