Wellness
Water Intake Calculator
Estimate daily fluid needs from body weight, exercise, caffeine, and hot weather — a practical starting point for hydration and skin wellness.
Hydration estimate
Total fluids2530 ml (2.5 L)
Approx. cups (240 ml)11 cups
Base from weight+1980 ml
Exercise adjustment+350 ml
Caffeine adjustment+200 ml
These calculators provide general estimates for education only. They do not replace medical advice, diagnosis, or personalized nutrition counseling. Talk with your clinician before changing diet, exercise, or treatment plans.