Calculate your recommended daily water intake based on weight, exercise, and climate.
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kg
min
Water Intake Result
Recommended Daily Water Intake (2800 ml)
2.8 Liters
Water in Ounces94.7 fl oz
Standard 250ml Glasses11 glasses/day
Hydration StandardEFSA & Mayo Clinic Guidelines
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Medical & Health DisclaimerThis calculator provides general educational estimates based on standard health formulas. Results are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding a medical condition.
Daily Hydration Requirement Formula
Water (ml) = (Weight kg × 35) + (Exercise min × 11.67) + Climate Adj
Baseline of 35ml per kg body weight plus 350ml per 30 minutes of exercise and hot weather adjustments.
Variables Defined
Weight kg × 35:Baseline body hydration requirement.
Exercise min × 11.67:Sweat replenishment during physical activity.
Example Water Calculation
Individual weighing 70 kg exercising for 45 minutes in a warm climate.
Given Inputs
Base requirement:70 × 35 = 2,450 ml
Exercise addition (45 min):45 × 11.67 = 525 ml
Climate addition (Hot):+ 500 ml
Total daily water:2,450 + 525 + 500 = 3,475 ml
Calculation ResultRecommended Daily Water = 3.5 Liters (14 Glasses)
Frequently Asked Questions about Water Intake Calculator
