Hydration & Electrolyte Needs Calculator

Units

Imperial (lb, °F)

Metric (kg, °C)

Body Weight (lb)

Workout Duration (min)

Intensity

Temperature (°F)

Humidity (%)

Sweat Rate (L/hour) (optional) If unknown, we’ll estimate from intensity & environment.

Sweat Saltiness

Bottle Size (mL)

Caffeine (mg today)

Alcohol (standard drinks today)

Affiliate

Helpful gear for accurate hydration planning. As an Amazon Associate I may earn from qualifying purchases.

LEVELEN Athlete Sweat Testing & Electrolyte Analysis Kit

At-home sweat testing with personalized fluid & electrolyte recommendations (2 tests included).

View on Amazon

Salinity Test Strips

Vial of 50 test strips with instructions and color chart printed on the bottle

View on Amazon

Disclosure: I may receive a small referral fee from Amazon if you purchase through these links.

Enter your details to get a tailored hydration and electrolyte plan.