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Water Intake Calculator

New

Daily water intake calculator — how much water should you drink?

70 kg
2.9L
Daily target
2900ml
Millilitres
12 glasses
Glasses (250ml)
0 / 12
0% of daily goal

Suggested drinking schedule

7:00 AM2 glassesRight after waking up — rehydrates after sleep
9:00 AM1 glassWith or after breakfast
11:30 AM1 glassBefore lunch
1:00 PM1 glassAfter lunch
3:30 PM2 glassesAfternoon hydration
6:00 PM1 glassBefore dinner
8:00 PM1 glassAfter dinner
10:00 PM1 glass30 min before bed
Browser-based, files never uploaded Instant results Works on any device

How to use Water Intake Calculator

  1. 1Enter your weight
  2. 2Select activity level
  3. 3Choose climate (hot or normal)
  4. 4Get daily water target in litres and glasses

About this tool

Calculate your ideal daily water intake based on weight, age, activity level, and climate. Get a personalised hydration schedule with hourly reminders.

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Frequently asked questions

How much water should I drink per day?

General guideline: 35ml per kg of body weight. A 70kg person needs about 2.5 litres.

Does coffee count toward water intake?

Plain water, herbal teas, and water-rich foods count. Coffee and alcohol have mild diuretic effects.