Mixing Ratio of Air Calculator

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The ambient (dry-bulb) air temperature. Used to compute the saturation mixing ratio.
°C
The temperature to which air must cool (at constant pressure) to become saturated. Cannot exceed the air temperature.
°C
Station (surface) pressure at the observation point, NOT sea-level or altimeter pressure. Standard sea-level pressure is 1013.25 hPa / 29.92 inHg / 760 mmHg.
hPa
Actual mixing ratioComfortable to dry
9.96g/kg

Grams of water vapor per kilogram of dry air (current moisture content)

Saturation mixing ratio20.07g/kg
Relative humidity49.6%
Actual vapor pressure15.974hPa
Saturation vapor pressure31.674hPa
Dew point depression11°C
49.6 %
Very dry<25Comfortable25-50Humid50-75Very humid75-90Near saturated90+
Actual mixing ratio (g/kg)9.96
Saturation mixing ratio (g/kg)20.07

Actual mixing ratio: 9.96 g/kg at 49.6% relative humidity.

  • The air currently holds 9.96 g of water vapor per kilogram of dry air, which is 49.6% of its maximum capacity at that temperature.
  • The moisture deficit is 10.11 g/kg - the air can absorb roughly that much more vapor before condensation begins.
  • With a dew point depression of 11.0 °C, the air is well below saturation and condensation is unlikely without significant cooling.

Next stepConditions are within a comfortable humidity range. The dew point of 14.0 °C indicates moderate moisture content.

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