Daily Hydration Calculator
Estimate how much water you should drink each day based on your weight and activity level.
Limitations: Does not account for climate, illness, pregnancy, or caffeine/alcohol intake, all of which increase hydration needs.
What to do next: Spread intake throughout the day. Urine color is a practical real-time indicator — pale yellow means well hydrated.
This is a general estimate only. Hydration needs vary by individual health, climate, and medical conditions. Consult a healthcare professional if you have kidney or heart conditions.