Fitness & Sports
Hydration for gym, running, cycling, workouts, and hot-weather exercise.
Most popular in Fitness & Sports
Athlete & Workout Water Intake
Daily target including sweat replacement for training duration, intensity, and heat.
Open calculatorSweat Loss & Workout Rehydration
Estimate sweat replacement for training sessions plus your baseline daily intake — for runners, gym-goers, and cyclists.
Open calculatorRunning Water Intake
Sweat-replacement calculator for runners — accounts for run duration, pace, and weather.
Open calculatorExplore the full library
Mma Player Water — 80 kg
Match-day and training hydration for a 80 kg mma player.
OpenMma Player Water — 90 kg
Match-day and training hydration for a 90 kg mma player.
OpenRugby Player Water — 60 kg
Match-day and training hydration for a 60 kg rugby player.
OpenRugby Player Water — 70 kg
Match-day and training hydration for a 70 kg rugby player.
OpenRugby Player Water — 80 kg
Match-day and training hydration for a 80 kg rugby player.
OpenRugby Player Water — 90 kg
Match-day and training hydration for a 90 kg rugby player.
OpenHiit 30Min Water Intake
Sweat-loss-based fluid plan for hiit 30min.
OpenHiit 45Min Water Intake
Sweat-loss-based fluid plan for hiit 45min.
OpenHiit 60Min Water Intake
Sweat-loss-based fluid plan for hiit 60min.
OpenCrossfit Wod Water Intake
Sweat-loss-based fluid plan for crossfit wod.
OpenZumba Class Water Intake
Sweat-loss-based fluid plan for zumba class.
OpenMuay Thai Water Intake
Sweat-loss-based fluid plan for muay thai.
OpenSimple, accurate, personalized
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Weight, activity, climate, species — takes under 30 seconds.
Get your target
A research-backed daily target plus an hourly schedule.
Learn the science behind fitness & sports
Read our in-depth guides for research-backed context on every calculator here.