# Saturated Vapor Pressure

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Saturated vapor pressure, abbreviated as $$e_s$$, is the pressure applied by air that is mixed with water vapor, at a given temperature, at its maximum saturation point.

## Saturated Vapor Pressure formula

$$\large{ e_s = 100 \; \frac{RH}{e} }$$
Symbol English Metric
$$\large{ e_s }$$ = saturated vapor pressure $$\large{\frac{lbf}{in^2}}$$  $$\large{\frac{kg}{m-s^2}}$$
$$\large{ e }$$ = actual vapor pressure $$\large{\frac{ft-lbf}{lbm-R}}$$  $$\large{\frac{J}{kg-K}}$$
$$\large{ RH }$$ = relative humidity $$\large{\frac{lbf}{in^2}}$$ $$Pa$$