This calculator requires the use of Javascript enabled and capable browsers. This calculator takes altitude into consideration in the boiling point temperature of water as well as the atmospheric pressure involved in the calculation. Our base version calculator does not. At a barometric pressure of 29.92 inches of mercury (standard pressure at sea level) water boils at about 212.0°F [1]. These are the default values in our calculator. Change the barometric pressure to the value appropriate for your area and click on Calculate. The boiling point of water will be shown as a result. You may enter data in any of the fields and conversions will be made. The actual calculations are done on feet and inches of mercury. It should be noted that the only actual factor that is truly involved in the variance of boiling water is the pressure. Altitude is given as an alternative where and when pressure information is not available. The boiling point begins to lose accuracy at extreme values.
