Water Intake Calculator
Calculate your recommended daily water intake based on your body weight, activity level, climate, and health status.
Your Details
Daily Water Target3.0 L (13 glasses)
Your Daily Water Target
3.0Lof 4L max
Recommended Daily Intake
3.0 litres
3010 ml · 102 fl oz · 13 cups
💧 13 glasses (250ml each)
Base Requirement70.0 L
Activity Addition+0.7 L
Climate Factor×1
Pregnancy / BreastfeedingN/A
Total Recommendation3.0 L / day
Morning
0.8L
Midday
0.8L
Afternoon
0.8L
Evening
0.8L
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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
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