Water Intake Calculator
Find out how much water you should drink each day. This calculator estimates your daily hydration needs based on your body weight, exercise level, and climate.
Water Intake Calculator
health calculator
How It Works
Formula
Base = Weight (kg) × 35 ml + 350 ml per 30 min exercise + 10% for hot climates
Examples
70 kg, 30 min exercise, temperate
About 2.8 liters per day.
Frequently Asked Questions
How much water should I drink a day?
A common guideline is about 35 ml per kg of body weight, plus extra for exercise and hot weather. For a 70 kg person, that's roughly 2.5 liters (about 10 cups) per day.
Does coffee and tea count toward water intake?
Yes, in moderation. Beverages and water-rich foods contribute to hydration. However, plain water is the best and calorie-free choice for most of your intake.
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