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
Water Intake — Barrys Bootcamp
Class-day hydration plan for barrys bootcamp.
OpenWater Intake — Soulcycle
Class-day hydration plan for soulcycle.
OpenWater Intake — Peloton Ride
Class-day hydration plan for peloton ride.
OpenWater Intake — Peloton Tread
Class-day hydration plan for peloton tread.
OpenWater Intake — Peloton Strength
Class-day hydration plan for peloton strength.
OpenWater Intake — Lagree
Class-day hydration plan for lagree.
OpenWater Intake — Pilates Reformer
Class-day hydration plan for pilates reformer.
OpenWater Intake — Hot Pilates
Class-day hydration plan for hot pilates.
OpenWater Intake — Hot Yoga
Class-day hydration plan for hot yoga.
OpenWater Intake — Bikram
Class-day hydration plan for bikram.
OpenWater Intake — Vinyasa
Class-day hydration plan for vinyasa.
OpenWater Intake — Ashtanga
Class-day hydration plan for ashtanga.
OpenSimple, accurate, personalized
Pick your calculator
Choose the one that matches your situation from the grid above.
Enter a few details
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.