Dew Point Temperature Calculator

Dew Point Temperature Equation

$$ T_d = T - \frac{100 - \phi}{5} $$ where:

T_d = Dew point temperature (°C)

T = Air temperature (°C)

φ = Relative humidity (%)

Calculator

Property to Calculate:

Dew point temperature (T_d):

Air temperature (T):

Relative humidity (φ):

Result:

Equation Assumptions