Millet is a gluten-free ancient grain that fits easily into breakfast bowls, side dishes, and baking — and it brings a modest but useful amount of potassium to your diet. Potassium supports healthy blood pressure, muscle contraction, and fluid balance, which is why many people track it while following DASH-style meal plans, training for endurance events, or simply keeping an eye on electrolytes.
This millet potassium calculator turns an ordinary serving size — grams, ounces, or cups — into milligrams of potassium and shows how that fits your daily target. It handles both raw dry millet and cooked millet, since the mineral concentration changes dramatically once the grains absorb water.
Use the quick-fill buttons for common portions, adjust the daily value to match your needs, and hit Calculate for a step-by-step breakdown.
🥣 Millet Potassium Calculator
Estimate potassium in raw or cooked millet from grams, ounces, or cups — and see how a serving fits your daily target.
How to Use This Calculator
Start by selecting the millet form from the dropdown: cooked or raw dry. This is the most important choice, because the same volume or weight of grain contains very different amounts of potassium in each state. Next, type in your serving size and pick the matching unit — grams, ounces, or cups. If you are tracking potassium for a specific diet, adjust the daily target to your personal value; the standard adult recommendation is 4,700 mg per day.
The calculator supports quick-fill presets for common portions, including a half cup of dry millet, 100 g dry, one cooked cup, and a 3 oz cooked serving. Press Calculate to see the potassium in milligrams, the percentage of your daily target, and a step-by-step breakdown. Use Reset to clear the form and Copy result to save the summary to your clipboard for a food diary or meal log.
How It Works
The estimates are based on nutrient values compiled by the USDA FoodData Central. Raw (dry) millet contains approximately 195 mg of potassium per 100 g, while cooked millet contains about 65 mg per 100 g. Cooking inflates the weight with water without adding minerals, so a 100 g scoop of cooked millet contains less actual grain matter — and less potassium — than the same weight of raw grain.
These values are typical figures from national food databases; actual potassium can vary by variety, soil conditions, and growing region. Treat the output as a close estimate rather than an exact lab measurement.
Worked Examples
Example 1 — 1 cup cooked millet. A standard cooked cup weighs about 174 g. Using the cooked density of 65 mg per 100 g: 174 × 65 ÷ 100 = 113 mg potassium. For a 4,700 mg daily target, that equals 2.4% of the day's potassium.
Example 2 — 100 g raw dry millet. Using the raw density of 195 mg per 100 g: 100 × 195 ÷ 100 = 195 mg potassium. For a 4,700 mg target, that is 4.1% — noticeably more than the cooked portion because dry grain contains more mineral per gram.
Reference Table: Potassium in Cooked Grains
This table helps put millet in context with other common cooked grains. Values are approximate and based on USDA reference entries.
| Grain (cooked) | Potassium per 100 g | Per 1 cup (~174 g) |
|---|---|---|
| Millet | ~65 mg | ~113 mg |
| Quinoa | ~172 mg | ~299 mg |
| Brown rice | ~79 mg | ~137 mg |
| White rice | ~35 mg | ~61 mg |
| Oats | ~61 mg | ~106 mg |
Tips & Best Practices
Use the same form and measuring method each time you log millet so that your food diary stays consistent. A rice cooker or boiling method can change water absorption slightly, which shifts the potassium per gram — but the difference is small relative to a daily target.
An average cooked portion supplies only a few percent of the standard 4,700 mg daily target, so millet is generally a low-potassium grain on a cooked-weight basis. If you have chronic kidney disease or take potassium-altering medications, your personal target may be lower or higher than the standard value — confirm with your doctor or a registered dietitian.
Frequently Asked Questions
Is millet considered high in potassium?
Raw millet is moderately rich for a staple grain, with about 195 mg per 100 g dry. Cooked millet, however, is relatively low, around 65 mg per 100 g, because water makes up more than half of the cooked weight. On a typical plate, cooked millet is not usually classified as a high-potassium food.
Why is the raw value so much higher than the cooked value?
Cooking adds water but no minerals. When you measure equal weights of raw and cooked grain, the cooked sample contains less dry matter because water contributes to the weight. The same potassium content is therefore spread across a heavier, more diluted food.
Does rinsing or soaking reduce potassium in millet?
Potassium is water-soluble, and some minerals can leach into cooking or soaking water. Rinsing millet before cooking is common for texture and can remove surface dust, but the effect on potassium content is modest and difficult to predict precisely. Discarding soaking water may remove a bit more than boiling in the same water, but official database values already represent typical cooking practice.
Can I use this calculator for other grains?
No — this tool uses millet-specific densities and cup weights. Quinoa, rice, and oats have different potassium values and cup weights, so use a dedicated calculator or USDA data for those grains.