Hydrating the WorldClass.
We believe that optimal hydration is the foundation of human performance, health and well-being.
Our Story
It started with a simple question: "How much water do I really need to drink?"
We realized that the old "8 glasses a day" rule was a myth. Everyone is different. Your water needs depend on your weight, your activity level, the climate you live in and even whether you're pregnant or breastfeeding.
Frustrated by generic advice and complicated formulas, we built WorldClass Hydration. Our goal was to create the most accurate, easy-to-use and scientifically-grounded water intake calculator on the web.
Why We're Different
We don't just guess. We use data-driven estimates to help you find your balance.
Scientifically Grounded
Our calculations are based on recognized guidelines from health organizations and sports medicine research.
Privacy First
We don't store your personal health data. Your calculations happen instantly in your browser.
Accessible to All
Free, mobile-friendly and easy to use. Hydration advice should be available to everyone, everywhere.
Ready to find your number?
Calculate My IntakeHealth Disclaimer: This tool provides general hydration estimates only. It is not medical advice. Consult a healthcare professional for personalized recommendations based on your health condition, environment and lifestyle. WorldClass is not responsible for decisions made from calculator results.