Water intake calculator

How much water should you drink daily? Based on weight, activity level, and climate.

Your Daily Water Intake
2.8 L
12 glasses (250 ml each)
Glass Visualization
Each glass = 250 ml · Filled: 12 of 15
Breakdown
Base need (weight × 33)2310 ml
Activity bonus+500 ml
Climate bonus+0 ml
Total2810 ml
This is an estimate. Individual hydration needs vary. Consult a healthcare professional for personalized advice.

Free water intake calculator

Free water intake calculator. Find out how much water you should drink daily based on your body weight, activity level, and climate. Staying properly hydrated supports digestion, energy levels, skin health, and overall well-being. Use this tool to estimate your optimal daily water consumption in liters and glasses.

How is water intake calculated?

The base recommendation is 33 ml of water per kilogram of body weight. This is adjusted for physical activity, hot climates, and pregnancy or breastfeeding. Active individuals and those in warm environments need more fluids to compensate for water lost through sweat.

Tips for staying hydrated

Carry a reusable water bottle, drink a glass of water before each meal, and eat water-rich foods like fruits and vegetables. If you exercise, drink extra water before, during, and after your workout. Signs of dehydration include dark urine, fatigue, headache, and dry mouth.