PsychrometricsPsychrometric calculator
Enter dry-bulb temperature plus wet bulb, relative humidity, or dew point to solve the full moist-air state and plot it on the psychrometric chart.
Inputs
Unit system
Dry-bulb temperature
Altitude
Select your inputs or drag the point on the chart.
Second point
Dry-bulb temperature
Constant-humidity and constant-dry-bulb lines join the two points. Where the horizontal leg meets saturation is point 1's dew point — cross it and the coil is dehumidifying.