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Conversions
Pressure Conversion Calculator
Convert aviation pressure between inches of mercury, hPa or millibars, and kPa for altimeter and weather checks.
inHg
hPa / mb—
kPa—
inHg—
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29.92 inHg in hPa and kPa
29.92 inHg converts to about 1,013.2 hPa or 101.32 kPa. One hectopascal and one millibar are numerically equivalent.
29.92 inHg is a rounded representation of standard pressure; 1,013.25 hPa is the standard reference. A unit conversion alone does not determine pressure altitude.
Formula and method
29.92 inHg is approximately 1013.25 hPa; the calculator applies the standard pressure-unit conversion.