Hydration loss estimator (by exercise)
Sweat rate ≈ (pre-weight − post-weight + drink) / hours.
⚠ Educational estimates only — not medical advice. Consult a healthcare professional.
About this tool
Hydration loss estimator (by exercise) is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
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