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Free Calculator

Water Intake Calculator

Your body is ~60% water. Calculate your optimal daily intake based on weight, activity, and environment.

Daily Water Target

— liters/day

  • Drink a glass immediately after waking up
  • Drink 30 minutes before meals to aid digestion
  • Add 500ml for every 30 minutes of exercise
  • Clear/pale urine = good hydration
  • Tea, coffee, and soups count toward total intake
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