About Water Vapor Pressure

Jimmy Raymond is the developer behind Water Vapor Pressure. He builds fast, correct, cited engineering and science calculators — here, every saturation-pressure formula is validated against the IAPWS-95 international standard.

Most vapor-pressure calculators expose a single formula as a black box, with no citation and no sense of how accurate it is. Water Vapor Pressure does the opposite: it lets you choose among the established equations, validates every one against the IAPWS-95 international standard, shows each formula’s deviation from that reference at your exact temperature, and cites a primary source for every constant. The methodology and validation values are public.

Water Vapor Pressure is part of a small network of fast, correct engineering and science tools, including rgbhex.com and qrgenerate.com.