This water intake calculator estimates how much water you should drink daily based on your weight, activity level, and climate.
How to Calculate
- Enter your body weight
- Select your activity level
- Choose your climate (hot, moderate, or cold)
- Get your personalized daily water intake recommendation
General Guidelines
- Standard recommendation: 8 glasses (64 oz) per day
- Weight-based: Drink half your body weight in ounces
- Exercise: Add 12 oz for every 30 minutes of exercise
- Hot weather: Increase intake by 20-50%
Signs of Dehydration
Dark yellow urine, dry mouth, fatigue, headache, and dizziness are common signs. If you're active or live in a hot climate, you may need significantly more water than the standard recommendation.