Absolute Humidity Calculator

Estimate water-vapor density in grams per cubic meter and compare dew point and vapor pressure.

Air temperature (°C)

Relative humidity (%)

—Absolute humidity

—Vapor pressure

—Dew point

—Water vapor kg/m³

Weather calculations run locally in your browser. These tools transform observations with stated formulas; they do not replace official forecasts, alerts, measurements, or professional field instruments.

How to use this Absolute Humidity Calculator

Calculate absolute humidity from air temperature and relative humidity. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.