Water Intake Calculator

Calculate your ideal daily water intake based on body weight, activity level, and climate. Get results in liters, glasses, and fluid ounces.

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Find out exactly how much water your body needs every day. This calculator uses your body weight, activity level, and climate to give a personalized hydration goal — a smarter approach than the generic "8 glasses" rule.

How it works

  1. 1Enter your body weight and select kg or lbs
  2. 2Choose your daily activity level from sedentary to athlete
  3. 3Select your climate zone for temperature adjustment
  4. 4Get your personalized daily water intake instantly

Who uses this tool

  • ✓Athletes tracking hydration
  • ✓People starting a healthy lifestyle
  • ✓Hot climate residents
  • ✓Office workers staying hydrated
  • ✓Dieters and fitness enthusiasts