Daily Water Intake Calculator
Calculate how much water you should drink daily based on your weight.
This tool is for informational purposes only and does not replace medical advice. Consult a physician for decisions about your health.
kg
Result
2,31 litre
Daily water requirement: 2.31 liters (~12 glasses)
Result in all units
Step-by-step solution
What Is Daily Water Requirement?
Daily water requirement is the amount of water you need to drink to maintain your body's basic functions. It varies with weight, activity, and climate.
How is it calculated?
How Is Water Requirement Calculated?
Daily water (ml) = weight (kg) × 30–35 ml
- Enter your weight.
- Increase the amount during exercise and hot weather.
For example, about 2.1–2.5 liters for 70 kg.
Frequently Asked Questions
How much extra water is needed during exercise?
During intense exercise, about 300–500 ml of extra water is recommended for every 30 minutes.