Daily Water Intake Calculator
Water intake calculator by body weight and activity: about 33 ml per kg plus extra for exercise, heat and pregnancy, with an hourly drinking schedule.
Frequently Asked Questions
How much water should I drink a day?▼
About 1500-2500 ml for most adults, or body weight × 33 ml (a 60 kg person needs about 2000 ml). Add 350 ml per 30 minutes of exercise.
Do coffee and tea count toward water intake?▼
Yes. Despite mild diuretic effects, caffeinated drinks contribute net hydration. Food also provides about 20% of daily water.
How do I use the Water Intake Calculator?▼
Open the page and fill in the input fields — results update automatically. Recommended daily water by weight and activity.
Are the results accurate?▼
Results follow published international standards (WHO, ACE, IOM) and are for reference only.
Can this replace medical advice?▼
No. Always consult a qualified healthcare professional for health decisions.
This is a dedicated variant of the Water Intake Calculator, pre-configured for this scenario with tailored FAQs.