Sweat Rate Calculator
Work out how much fluid you lose per hour of exercise by weighing yourself before and after, so you know how much to drink.
Result
Losing more than 2% of body weight during exercise can hurt performance. Sweat rate changes with heat, humidity and intensity.
Sweat rate
40fl oz/hr
- Sweat rate
- 1,183mL/hr
- Body weight lost
- 0.94%
- To replace it, drink every 15 minutes
- 10fl oz