Last updated: January 2026.
By accessing or using SnapWaterCalc, you agree to these Terms of Service. If you do not agree, please do not use the site.
SnapWaterCalc provides a free, browser-based hydration calculator offering general informational guidance based on published hydration formulas. No registration is required and no calculator data is stored.
Results are estimates based on body weight formulas, activity and climate adjustments, and widely accepted hydration guidelines. SnapWaterCalc does not provide medical advice. Always consult a qualified healthcare professional before making health decisions, especially if you are pregnant, ill, or taking medication.
The service is provided "as is" without warranties of any kind. SnapWaterCalc is not liable for damages arising from use of the calculator or reliance on its results.
Questions about these terms: snapwatercalc@gmail.com.