Hydration Calculator

This tool is for educational purposes and as such, provides a conservative estimate set at a maximium of 1.5L (50 oz) per exercise session. Those who exercise in extreme conditions or at high intensity for prolonged durations, may need more fluids and should use their sweat rate to guide their fluid intake. This tool also uses 59 degrees F (15 degrees C) as the minimum temperature that affects exercise hydration needs because it is assumed that appropriate insulting clothing is worn when the air temperature is lower.