An electrolyte powder calculator helps you determine the exact amounts of raw ingredients—sodium chloride (table salt), potassium chloride, and glucose—needed to create a custom electrolyte drink. Instead of buying expensive commercial packets, you can mix your own electrolyte powder at home for a fraction of the cost (often less than $0.10 per serving vs. $1–$2 for branded products). This also gives you full control over the sodium-to-potassium ratio, sugar content, and ingredient quality—critical for people on keto, intermittent fasting, or those with specific hydration needs.

The ideal sodium-to-potassium (Na:K) ratio depends on your goal. For oral rehydration (like WHO ORS), a ratio of about 2:1 to 2.5:1 is clinically proven to optimize water absorption via the sodium-glucose cotransport mechanism. For daily electrolyte maintenance on a keto diet, a 1:1 to 2:1 ratio is common. For heavy sweating during endurance sports, higher sodium ratios (3:1 to 5:1) are often used because sweat contains more sodium than potassium. Our calculator lets you adjust this ratio freely and provides guidance on what's appropriate for different scenarios.

Glucose is essential in the WHO Oral Rehydration Solution because it activates the sodium-glucose cotransport system (SGLT1) in the small intestine. This mechanism allows sodium—and therefore water—to be absorbed much more efficiently. Without glucose, the sodium absorption rate drops dramatically. The standard WHO low-osmolarity ORS contains 13.5 g/L of glucose, 75 mmol/L of sodium, and 20 mmol/L of potassium. For non-medical hydration (e.g., keto or daily use), glucose may be omitted or substituted with zero-calorie sweeteners.

Yes, you can substitute Himalayan pink salt, sea salt, or Celtic salt for regular table salt in your DIY electrolyte powder. The sodium content is very similar—approximately 38–40% sodium by weight. However, these natural salts also contain trace minerals like calcium, magnesium, and iron in small amounts. Be aware that they lack iodine (which is added to iodized table salt), so if you rely on iodized salt for iodine intake, you may need an alternative source. Our calculator assumes pure sodium chloride (39.3% sodium); natural salts are close enough for practical purposes.

Potassium chloride is widely available as a salt substitute under brand names like NoSalt, Nu-Salt, LoSalt (which is a sodium-potassium blend), and Morton Salt Substitute. You can find these products in the spice aisle of most grocery stores in the US, UK, and Europe, or order them online via Amazon. Pure food-grade potassium chloride powder is also available in bulk from supplement retailers. Always check the label to confirm it's 100% potassium chloride if you want precise dosing. Note: LoSalt contains both NaCl and KCl, so adjust accordingly.

Common signs of electrolyte imbalance include muscle cramps, fatigue, headaches, brain fog, heart palpitations, dizziness (especially when standing up), and excessive thirst. These symptoms are particularly common during the first few weeks of a ketogenic diet (the "keto flu"), during prolonged fasting, after intense exercise, or in hot weather. If you experience these symptoms regularly, increasing your sodium, potassium, and magnesium intake—using a balanced electrolyte drink like the one you can formulate here—often provides rapid relief. Consult a healthcare provider if symptoms persist.

Yes, making your own electrolyte powder is safe when done correctly. The ingredients—salt, potassium chloride, and glucose—are common food-grade substances. The key is accurate measurement: use a digital kitchen scale (preferably with 0.1g precision) rather than relying solely on volume measurements like teaspoons, as powder density can vary. Always start with the lower end of recommended dosages and adjust based on your body's response. People with kidney disease, high blood pressure, or those on potassium-sparing medications should consult a doctor before supplementing potassium, as excess potassium can be dangerous for these individuals.

Store your DIY electrolyte powder in an airtight container in a cool, dry place away from direct sunlight. Salt and potassium chloride are hygroscopic (they absorb moisture from the air), which can cause clumping. Adding a food-grade silica gel packet to the container can help prevent this. Properly stored, the powder mix lasts indefinitely since salt and potassium chloride don't spoil. If you include glucose or other sugars, the shelf life may be reduced to 1–2 years. Always use a dry spoon when scooping to avoid introducing moisture.

Absolutely! Plain electrolyte water can taste salty, especially at higher sodium concentrations. Popular natural flavoring options include: fresh lemon or lime juice (which also adds a small amount of potassium), a splash of unsweetened cranberry juice, herbal tea (brewed and cooled), a few drops of liquid stevia or monk fruit extract for sweetness, or water enhancer drops like Mio. You can also add citric acid powder (sour salt) for tartness. For a commercial-style experience, use powdered drink mixes, but be mindful of added sugars if you're on a low-carb diet.

Keto electrolyte drinks typically contain no sugar and emphasize higher sodium (1000–2000 mg/L) to combat the natriuresis (sodium loss) caused by low insulin levels. They often include magnesium, which is commonly deficient on keto. Sports drinks, on the other hand, typically contain 6–8% carbohydrates (60–80 g/L of sugar) for quick energy during prolonged exercise, with moderate sodium (400–700 mg/L) and lower potassium. Our calculator lets you switch between these profiles with one click, or create a hybrid that suits your specific activity and dietary needs.