Hydration Calculator
We just provided a general guide for determining your hydration needs, but there are numerous mathematical tools to calculate your hydration needs. One of the better ones we have seen can be found at this link. This one by Weather.com takes into account the temperature and humidity of where you are, your weight and the duration of any exercise. If you are not exercising, just enter 1 minute in the duration box. To return to our site, close the browser window that pops up when you click on this link. The site also provides additional information on hydration based on government health sites.