Water Intake Calculator
Estimate your daily water requirement.
Water Intake Calculator
Enter your values and calculate
How This Calculator Works
A common guideline is 35 ml of water per kg of body weight, plus extra for exercise. Needs also rise in hot climates, at altitude, and during pregnancy. Listen to thirst and urine color.
Formula
Water (ml) = weight(kg) × 35 + exercise(min) × 12
Example
A 70 kg person exercising 30 min/day needs about 2.8 L (roughly 12 cups) of water.
Practical Use Cases
- Hydration goals
- Athletic performance
- General wellness