Sweat Rate Calculator
Your fluid loss per hour from weight change and fluid drunk during exercise.
Result
Total sweat loss (L)
1.50
Sweat rate (L/h)
1.50
How it works
Loss = (before − after) + fluid; rate = loss ÷ hours
Knowing your sweat rate helps you plan hydration. Weigh yourself before and after exercise, add what you drank, and divide by the time.
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Frequently asked questions
Why does it matter?
It guides how much to drink during long efforts to avoid dehydration.
When should I test it?
In conditions like your event — heat and intensity change sweat rate a lot.
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