Rehydration Calculator
Calculate sweat loss, sweat rate, and rehydration needs based on pre/post exercise weight and fluid intake.
Inputs
lbs
lbs
oz
min
Results
Total Sweat Loss
48 oz
Rehydration Target
48 oz
Sweat Rate48 oz/hr
Rehydrate Over2 hrs
Dehydration %1.2%
How to Use This Calculator
- Weigh yourself before and after exercise and enter both values in kg.
- Input the total fluid consumed during the session.
- Set the exercise duration in minutes and environment temperature.
- Review the Sweat Rate in liters per hour and the Total Fluid Deficit.
- Multiply the Fluid Deficit by 1.5 and drink that amount over the next 2 to 4 hours to fully rehydrate.
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