Water boils at 212°F at sea level, but only at sea level. Changes in atmospheric pressure will alter the temperature at which water boils. To use this calculator you will need your current pressure and elevation.
How To Calculate The Boiling Point Of Water
Step 1: Find your local pressure and elevation
Find your current barometric pressure and elevation, then enter those values in the calculator below. The following link will open in a new window. Find your location and look for the details on the page like the example to the right.