Hazelnuts are a crunchy, nutrient-dense snack, and one of their underrated benefits is a solid potassium punch. Potassium supports healthy blood pressure, nerve signaling, and muscle function — which makes tracking it useful for athletes, dietitians, and anyone keeping an eye on their micronutrient intake. This hazelnut potassium calculator tells you exactly how much potassium you are getting from any serving size.
Enter your portion in grams, ounces, cups, tablespoons, or even individual nuts, then choose whether your hazelnuts are raw or dry roasted. The calculator instantly returns potassium in milligrams and as a percentage of the Daily Value, based on the standard 4,700 mg reference used on nutrition labels. It also shows the math step by step so you can see how the estimate was built.
Whether you are logging a snack, planning a kidney-friendly menu, or comparing nuts for a high-potassium diet, this quick tool gives you reliable numbers in seconds — all derived from USDA FoodData Central reference values.
🥜 Hazelnut Potassium Calculator
How to Use This Calculator
Pick a serving size that matches how you eat hazelnuts. The amount field accepts decimal values, and the unit dropdown lets you choose grams, ounces, cups, tablespoons, or whole nuts. If you measure by handful, note that a typical handful is about 30 g — use the 30 g preset for a fast estimate.
- Enter the amount of hazelnuts you ate or plan to eat.
- Select the unit (g, oz, cup, tbsp, or whole nuts).
- Choose Raw or Dry roasted to adjust the potassium density.
- Click Calculate Potassium to see milligrams and % Daily Value.
- Use the breakdown box to review the steps, or click Copy Result to paste the summary into a food diary.
No need to convert anything yourself — the calculator handles unit conversions to grams automatically using standard food weights.
Potassium Content Reference
| Hazelnut form | Potassium per 100 g | Potassium per 30 g | % Daily Value per 30 g |
|---|---|---|---|
| Raw hazelnuts | 680 mg | 204 mg | 4.3% |
| Dry roasted hazelnuts | 755 mg | 227 mg | 4.8% |
| Whole hazelnuts, 1 cup (~135 g) | 918 mg per cup | — | 19.5% per cup |
Values are approximate and rounded from USDA FoodData Central. Actual potassium can vary slightly by cultivar, growing region, and processing method.
How the Calculation Works
The calculator converts your serving to grams, then multiplies by the potassium density of the selected form:
Potassium (mg) = (serving weight in grams ÷ 100) × potassium per 100 g
For example, a 30 g serving of raw hazelnuts gives (30 ÷ 100) × 680 = 204 mg. The Daily Value is then calculated as (204 ÷ 4,700) × 100 = 4.3%.
Unit conversions use standard kitchen weights: 1 oz = 28.35 g, 1 cup whole hazelnuts ≈ 135 g, 1 tablespoon ≈ 8.5 g, and 1 whole hazelnut ≈ 1.2 g. If your hazelnuts are chopped, a cup weighs less, so weight-based units (g or oz) are the most accurate.
Worked Examples
Example 1: You snack on 1 oz (28.35 g) of raw hazelnuts. Estimated potassium = (28.35 ÷ 100) × 680 = 193 mg, which is about 4.1% of the Daily Value.
Example 2: You add 2 tablespoons of chopped dry roasted hazelnuts to oatmeal. That's about 17 g. Potassium = (17 ÷ 100) × 755 = 128 mg, about 2.7% DV.
Example 3: A whole cup of raw hazelnuts, roughly 135 g, delivers (135 ÷ 100) × 680 = 918 mg — nearly one-fifth of the recommended daily intake. Mind portion sizes if you're counting potassium closely.
Tips & Best Practices
- For food logging, weigh hazelnuts on a kitchen scale when possible; it's far more accurate than volume guesses.
- Dry roasted hazelnuts have a slightly higher potassium density per 100 g because moisture is removed, but the difference is small.
- Pair hazelnuts with other potassium-rich foods like bananas, spinach, or potatoes to hit your daily target.
- If you're tracking potassium for kidney disease, always defer to your doctor or renal dietitian — individual targets vary widely.
Keep a one-ounce portion bag of raw hazelnuts in your desk. It offers about 193 mg of potassium plus healthy fats and fiber, making it a satisfying mid-afternoon snack.
Frequently Asked Questions
Are hazelnuts high in potassium?
They're moderate. A 30 g serving supplies about 204 mg, or 4.3% of the Daily Value. That's less than beans, potatoes, or dried apricots, but more than many processed snacks, and hazelnuts add healthy fats, magnesium, copper, and vitamin E.
Why do dry roasted hazelnuts show more potassium per 100 g?
Roasting evaporates some water, so the same weight contains slightly more dry matter — and therefore more potassium. Per nut, the difference is negligible, but per 100 g it's enough to show up on a label.
Can I use this for hazelnut butter or flour?
Only as a rough estimate. Hazelnut butter has potassium around 700 mg per 100 g, similar to whole nuts, but added ingredients and processing can change the number. Flour and meal are also close to whole nuts, but the density per cup differs. Weigh your portion and use the closest form for a useful approximation.
For other potassium-rich foods, try Cherry Potassium Calculator or Pear Potassium Calculator. If you're comparing tree nuts generally, the Almond Nutrition Calculator can round out your snack comparisons.