Water Intake Calculator
Calculate your recommended daily water intake based on your body weight, activity level, climate, and health status.
Your Details
Your Daily Water Target
Recommended Daily Intake
3.0 litres
3005 ml · 102 fl oz · 13 cups
Morning
0.8L
Midday
0.8L
Afternoon
0.8L
Evening
0.8L
How It Works
The base water requirement is calculated using the standard formula: 33ml × body weight in kg (or 0.5 oz per pound). This is then adjusted for:
- Activity level: Extra fluid lost through sweat during exercise - Climate: Hot and humid conditions increase water loss through perspiration - Pregnancy: Additional 300ml/day recommended - Breastfeeding: Additional 700ml/day recommended
These recommendations align with guidelines from WHO, EFSA (Europe), and national health authorities worldwide.
Frequently Asked Questions
Written by the Tools & Deals Hub Editorial Team · Reviewed by Durga Prasad Mogulothu, Founder · Last reviewed:
Sources & further reading
Results are estimates for planning, not professional advice. Figures can change after publication — check the source for current numbers.