Dew Point & Moisture Converter

Convert air temperature + relative humidity into dew point, grains/lb and g/kg — the numbers you actually size a desiccant dehumidifier on.

°C (69.8 °F)
% RH
10.2Dew point °C
50.4Dew point °F
7.6g water / kg dry air
53grains / lb dry air
Get a Koven Air sizing consult for your dew-point target →

Method: saturation vapor pressure via the Magnus-Tetens approximation; humidity ratio at 101.325 kPa. For engineering selection, confirm against site load with Koven Air selection software. Refrigerant units bottom out near a +4 to +7 °C dew point; below that, desiccant is the only reliable path.