Vapor Pressure of Water calculator Formula:
   P = 10^A-B/(C+T)
Where:
   P: Vapor Pressure of Water
   T: Water Temperature, in Celsius
  A,B,C: Antoine Constants for Water. When water temperature in the range of 1 - 100 Celsius A=8.07131, B=1730.63, C= 233.426; when the temperature in the range of 99 - 374 degree Celsius, A=8.14019, B=1810.94 and C=244.485.