Daily Hydration Calculator
Estimate daily fluid intake from body weight, activity, and climate. Provides a practical hydration schedule for planning purposes.
Free Hydration Calculators
3 toolsDaily water needs, sweat rate, and electrolyte replacement calculators. Browse our free hydration tools below — no sign-up required.
Electrolyte Replacement Calculator
Estimate sodium, potassium, and magnesium losses from sweat during exercise. Get personalized electrolyte replacement recommendations based on your sweat rate.
Sweat Rate Calculator
Calculate your sweat rate during exercise using pre and post-workout weigh-ins. Determine fluid replacement needs to optimize performance and prevent dehydration.