Water Intake Calculator
Daily hydration target from weight, activity and climate
Methodology
- Indicative daily water by weight/activity — not medical advice
How it works
Starts from about 35 ml per kg body weight, then adds adjustments for activity, climate and optionally pregnancy or breastfeeding. Advanced mode includes workout duration and extra heat.
The result is an approximate guide, not medical advice. Some fluids come from food too. Save the target to your profile and track daily intake in the Water tab.
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Frequently Asked Questions
How much water do I need per day?
It depends on weight, activity, climate and more. This calculator gives a practical estimate — use it as a starting point.
How do I save to my profile?
After calculating, tap “Save target to profile”. The daily goal appears in the Water tab where you can log intake.