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Sweat Rate Calculator

Enter your weight before and after exercise, plus fluid consumed, to calculate your estimated sweat rate.

How to use this tool

  1. 1Weigh yourself right before and right after exercise (same clothing, ideally).
  2. 2Enter fluid consumed during exercise.
  3. 3Enter the exercise duration.
  4. 4See your estimated sweat rate.

Frequently asked questions

Why does sweat rate matter?+

Knowing your sweat rate helps you plan fluid replacement during exercise to avoid both dehydration and overhydration, especially for longer or hotter workouts.

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