Hydration Drink Calculator

Formulas based on actual science, not marketing hype. You can tweak the mix to suit your taste profile. Scale any recipe to your bottle size and batch count.

total ounces
total liters
L per bottle

Per Bottle

Sodium
Calories
Carbs
Protein

The Science in Your Bottle

Why these formulas use the ingredients and amounts they do — sodium, potassium, magnesium, the maltodextrin/fructose carb blend, and tart cherry for recovery. Open the guide (PDF).

Ingredient Per bottle (g) Total batch (g)

Scoop mode — pre-mixed dry blend

If you mix all the powders together as one dry batch, this is how many level tablespoons of that blend to add per bottle. Weighing is still the most accurate; a scoop varies with how the blend settles.

Density table — measured grams per level tablespoon

Volume estimates depend on powder density. These are measured grams per level tablespoon, weighed on a kitchen scale. Ingredients with a measured value show tbsp/tsp estimates in the table above; the rest stay grams-only. Grams remain the most accurate way to mix — treat the tbsp/tsp figures as a convenience.

Ingredient Grams per level tbsp
Shopping list — where to buy each ingredient

Buy links for each ingredient. Built-in defaults point at good-value bulk options; click "Edit" to paste your own link, saved on this device. Confirm exact size and price on Amazon before ordering — prices change.

Ingredient Buy link
Ride-test log — record how a ride felt and feed it back into your recipes

Saved ride tests (0)

Tests are saved on this device. To move them to your iPhone/iPad or keep a backup, export JSON and AirDrop or save it to iCloud Drive, then import it on the other device. Import merges by ID, so re-importing won't create duplicates.

Acceptance tests