๐ค๏ธ Weather
Humidity Calculator
Relative humidity is a ratio that changes with temperature even when the moisture in the air does not, because warm air can hold more water. Deriving it from dew point avoids that confusion and gives you absolute humidity alongside it.
How it works
Air temperature
Dew point
Temperature unit
Relative humidity
Absolute humidity
Vapour pressure
Saturation vapour pressure
Mixing ratio
Comfort level
Frequently asked questions
How do I use the Humidity Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.