Sesame seeds are a compact source of plant-based minerals, and potassium is one of the notable micronutrients they provide. A 100 g serving of whole dried sesame seeds contains about 468 mg of potassium — roughly 10% of the daily Adequate Intake (AI) of 4,700 mg for adults. Because sesame is often eaten by the tablespoon, however, the actual potassium you get in a typical serving is far smaller than the per-100 g number suggests.
This sesame potassium calculator converts your portion — in grams, ounces, tablespoons, or teaspoons — into milligrams of potassium, and expresses the result as a percentage of the recommended daily value. You can choose between whole seeds, toasted seeds, tahini, and sesame oil, since their potassium content and density differ. It is a quick, practical tool for anyone tracking potassium for kidney health, blood pressure management, athletic nutrition, or general meal planning.
🧮 Sesame Potassium Calculator
Find out how much potassium is in sesame seeds, tahini, and sesame oil — by weight or kitchen measures.
How to Use This Tool
Start by selecting the sesame product you're measuring from the dropdown — whole dried seeds, toasted seeds, tahini, or sesame oil. Then enter the amount you plan to eat. The amount unit can be changed between grams, ounces, tablespoons, and teaspoons. If you are going by a recipe measurement, the preset buttons below the amount field quickly fill in common portions such as 1 tablespoon (9 g), 1 teaspoon (3 g), ¼ cup (36 g), and 1 ounce (28 g). Press Calculate to see the potassium value in milligrams, the equivalent weight in grams, and the percent Daily Value.
If you know your portion only in cups, remember that 1 cup of whole sesame seeds weighs about 144 g. The calculator does not include a cup option, but you can enter 144 in grams to estimate a full cup, or 72 for a half-cup. For tahini, 1 tablespoon is heavier than whole seeds because the paste is denser, so the unit conversion automatically adjusts to roughly 15 g per tablespoon.
How It Works: The Calculation Behind the Numbers
The calculator applies a simple proportion using USDA reference values for each sesame product. First it converts your selected volume or weight unit into grams. Then it multiplies the gram weight by the product's potassium density per 100 g:
For example, if you enter 28 g of whole dried sesame seeds, the calculation is (28 ÷ 100) × 468 ≈ 131 mg. The percent Daily Value is then computed by dividing the result by the adult Adequate Intake of 4,700 mg and multiplying by 100. So 131 mg would provide about 2.8% of the AI.
The potassium values used are based on commonly published USDA FoodData Central entries. Whole dried sesame seeds contain roughly 468 mg per 100 g; toasted seeds are similar at around 475 mg per 100 g; tahini provides about 414 mg per 100 g; and sesame oil contains essentially no potassium, so the result auto-fills to 0 mg.
Sesame Potassium Reference Table
| Sesame product | Potassium per 100 g | Potassium in 1 tbsp | Typical serving |
|---|---|---|---|
| Whole dried sesame seeds | 468 mg | 42 mg | 1 tbsp (9 g) |
| Toasted sesame seeds | 475 mg | 43 mg | 1 tbsp (9 g) |
| Tahini / sesame paste | 414 mg | 62 mg | 1 tbsp (15 g) |
| Sesame oil | 0 mg | 0 mg | 1 tbsp (13.6 g) |
These are approximate values from USDA food composition data. Actual numbers can vary between brands, growing conditions, and processing methods.
Worked Examples
Example 1: You sprinkle 1 tablespoon (9 g) of whole sesame seeds over a salad. Using whole seeds: potassium = (9 ÷ 100) × 468 = 42.1 mg. That is 0.9% of the daily AI.
Example 2: You make hummus with 2 tablespoons (30 g) of tahini. Potassium = (30 ÷ 100) × 414 = 124.2 mg, about 2.6% of the AI.
Example 3: A recipe calls for 1 ounce (28.35 g) of toasted sesame seeds. Potassium = (28.35 ÷ 100) × 475 = 134.7 mg.
Compared with a whole food like a medium banana (about 422 mg potassium), sesame's contribution is modest on a per-serving basis, but it can add up when combined with other potassium-rich foods. For another potassium look-up, see the yogurt potassium calculator.
Factors Affecting Accuracy
The main source of variation is measurement. Whole sesame seeds are small and flow easily, so a tablespoon can hold anywhere from about 8 to 11 g depending on whether you scoop loosely or pack them. Toasted seeds lose a little water, so their weight per volume can differ slightly from raw seeds. Tahini, on the other hand, is a heavy paste; using a seed-based tablespoon conversion would underpredict its potassium.
Potassium values also vary naturally. A 2019 review of sesame seed composition reported ranges for potassium from roughly 370 to 570 mg per 100 g among different cultivars and growing regions. The USDA value used here (468 mg per 100 g) is a reasonable central estimate, but it is not a precise guarantee for every bag of sesame.
Frequently Asked Questions
Is sesame a high-potassium food? In 100 g terms, yes — sesame seeds are moderately high in potassium. But a typical serving of 1 tablespoon provides only about 40 mg, which is very low. The context of portion size matters.
Does toasting sesame seeds change their potassium content? Toasting removes a small amount of water, which slightly concentrates minerals. Most data show toasted seeds have a similar or marginally higher potassium value per 100 g than raw dried seeds. Roasting in oil does not add potassium, though it adds fat and calories.
Why does sesame oil show zero potassium? Potassium is water-soluble and stays behind in the meal or seed material during oil pressing. Refined oils, including sesame oil, contain negligible amounts of minerals.
Can I use this calculator for white vs black sesame seeds? The values are close enough for most tracking purposes. Black sesame seeds are sometimes reported as having slightly higher potassium, but the difference is not clinically significant in normal serving sizes.
For more information about potassium in your diet, see the NIH Office of Dietary Supplements potassium fact sheet or search the USDA FoodData Central database.