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Temperature & Humidity Converter

Convert between °C, °F, K and between absolute, relative, and specific humidity.

Live tool

Temperature (°C)Relative humidity %

68.0 °F · 293.15 K

Sat. vapor pressure: 23.37 hPa

Vapor pressure: 14.02 hPa

Absolute humidity: 10.36 g/m³

Dew point: 12.01 °C

Introduction & principle

Uses the Magnus-Tetens formula for saturation vapor pressure and standard psychrometric relations to convert humidity representations.

Tool advantage

Single canonical converter for every humidity representation amateur observers encounter.

Detailed usage guide

1Enter the temperature in any unit; the other two update.
2Enter humidity in any form (RH%, absolute g/m³, dew point); the rest are derived.

Common problems & FAQ

Saturation vapor pressure is exponential in temperature, so the same RH% corresponds to different g/m³ at different temperatures.

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