Sweat Loss Calculator

Weight before (kg)

Weight after (kg)

Session length (minutes)

Fluid you drank (ml)

Urine passed (ml)

Sweat lost: 1.3L; 44 fl oz
Sweat rate: 1,300ml/h; 44 fl oz an hour
Body mass change: -1.1%; after the drinking

Estimates from published formulas, not medical advice. How we calculate.

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