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Water Intake Calculator

Daily hydration needs based on weight, activity, and climate.

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2.39
Liters/day
81.0
Ounces/day
10.1
Glasses (8 oz)
4.8
Bottles (500 ml)

Hourly schedule (spread over 14 waking hours)

Hour 1
5.8 oz
Hour 2
5.8 oz
Hour 3
5.8 oz
Hour 4
5.8 oz
Hour 5
5.8 oz
Hour 6
5.8 oz
Hour 7
5.8 oz
Hour 8
5.8 oz
Hour 9
5.8 oz
Hour 10
5.8 oz
Hour 11
5.8 oz
Hour 12
5.8 oz
Hour 13
5.8 oz
Hour 14
5.8 oz

Hydration tips

  • Start your morning with a glass of water before coffee.
  • Keep a refillable bottle on your desk — visible water gets sipped.
  • Drink a glass before each meal to aid digestion and reduce overeating.
  • Pale yellow urine is a sign you're well hydrated.