Personalized Hydration Calculator – How Much Water Should I Drink?

Get a science-backed daily water target tailored to your weather, weight, and age—in seconds.

Location-based

Science-backed

Instant results

Select Your Location

Search your city or use geolocation—HydrationMap uses local temperature, humidity, and altitude to calculate your personalized daily water intake.

Provide your personal details to get the most accurate hydration recommendations.

Personal Information