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Water Intake Calculator

Estimate your daily water intake target based on your body and activity level.

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Results update instantly as you adjust.

kg
min
Recommended daily water intake
2.4 L

10 glasses (250 ml each)

Based on 31 ml per kg of body weight, plus 12 ml for every minute of exercise — a baseline drawn from EFSA adequate-intake guidance and ACSM exercise-hydration recommendations. Hot climates, illness, or pregnancy can raise your needs further.

Read more in How Much Water Should You Drink?.

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