Water Intake Calculator
How much water should you drink daily? Get a personal target in litres and glasses, adjusted for exercise and hot Pakistani summers.
Daily Target
—
Glasses (250 ml)
—
Per Waking Hour
—
Tip: spread it out — roughly one glass every 1.5–2 hours while awake beats drinking it all at once. This is an estimate for information only — not medical advice.
How to use
- Enter your weight in kg and today’s exercise minutes.
- Turn on the hot-climate switch on very hot days.
- Your daily litres, glasses and hourly pace update instantly.
Frequently Asked Questions (FAQ)
How is the water target calculated?
The base target is body weight in kg times 35 ml, plus 12 ml for each minute of exercise, with an extra 20 percent when the hot climate switch is on.
What results do I get?
Your daily target in litres, the number of 250 ml glasses, and an hourly pace across your waking hours.
How does the hot climate switch change the result?
It adds 20 percent to the target, for very hot days, summer heat or outdoor work.
How big is one glass in the results?
One glass is counted as 250 ml.
Is the water target a medical recommendation?
No. It is an estimate for information only, not medical advice.