Dew Point Calculator

    Calculate dew point from temperature and humidity

    °C
    %

    Formula

    Td = 237.7α / (17.27 - α)

    Magnus formula approximation for dew point temperature.

    Examples

    25°C, 60% RH

    Dew point ≈ 16.7°C.

    Frequently Asked Questions

    About Dew Point

    Calculate the dew point from temperature and relative humidity.