Water Intake Calculator
Calculate how much water you should drink each day based on your body and lifestyle.
kg
Daily Water Intake
2.5 liters
≈ 10 cups · 84 oz
Daily Water Intake Guide
| Body Weight | Sedentary | 30 min exercise |
|---|---|---|
| 50 kg (110 lb) | 1.8 L | 2.1 L |
| 60 kg (132 lb) | 2.1 L | 2.5 L |
| 70 kg (154 lb) | 2.5 L | 2.8 L |
| 80 kg (176 lb) | 2.8 L | 3.2 L |
| 90 kg (198 lb) | 3.2 L | 3.5 L |
| 100 kg (220 lb) | 3.5 L | 3.9 L |
Disclaimer: General guidance only. Individual needs vary. Consult a doctor for specific recommendations.
Frequently Asked Questions
How much water should I drink per day?
A common guideline is to drink 0.5–1 ounce of water per pound of body weight (35ml per kg). This calculator adjusts for weight, activity, and climate.
Does exercise increase water needs?
Yes. Add 12 oz (350ml) for every 30 minutes of exercise. Hot climates and high altitude also increase needs.
Does coffee count toward water intake?
Yes. Coffee and tea contribute to hydration despite being mild diuretics. Water-rich foods like fruits and vegetables also count.