Daily Water Intake & Hydration Calculator
Compute optimal daily fluid requirements based on body weight, exercise duration, and climate, and view structured daily hydration schedules
Weight in pounds (lbs)
Sweat loss compensation
Evaporation adjustment
Recommended Daily Fluid Intake
2.9 Liters (98.5 fl oz)
Equivalent to ~12.3 Standard Cups (8 oz)
Base Requirement: 2.3L • Exercise Add-on: 0.4L • Climate Add-on: 0.2L
Metric Volume (Liters)
2.88 L
Total daily water volume
Imperial Volume (Fluid Ounces)
97.4 fl oz
Total US fluid ounces
Standard Cups (8 oz)
12.2 Cups
Standard kitchen cup servings
Standard Water Bottles (500ml)
5.8 Bottles
Standard disposable water bottles
Structured Daily Drinking Schedule (Wake to Sleep)
Time Window
Hydration Milestone
Target Volume
Clinical Urine Color Hydration Reference Chart
Color Tone
Hydration Status
Recommended Action
Pale Straw / ClearWell HydratedMaintain current fluid intake
Transparent YellowAdequately HydratedNormal healthy hydration level
Dark YellowMildly DehydratedDrink a glass of water now
Amber / HoneyDehydratedDrink 2–3 glasses of water immediately
Dark Brown / ColaSevere DehydrationSeek medical attention if persistent
Hydration Tip
Thirst is a lagging indicator of dehydration. Sip water consistently throughout the day rather than drinking large amounts all at once.