About the Water Intake Calculator
Get a personalized daily hydration target based on body weight, exercise duration and climate, expressed in liters, ounces and glasses — with practical tips for actually hitting it.
Generic "8 glasses" advice ignores body size and lifestyle; this estimate adapts to yours.
How to use the Water Intake Calculator
- Enter your weight and daily exercise minutes.
- Select your climate.
- Read your target in liters, ounces and glasses.
Common uses
Setting a realistic daily water goal
Hydration planning for training
Hot-climate adjustment
Frequently asked questions
Does coffee count toward intake?
Mostly yes — caffeinated drinks still hydrate, though water is the ideal source.
Can you drink too much water?
Yes, extreme overconsumption is dangerous. Sensible targets like these are far below harmful levels.
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