True Airspeed

Compute true airspeed (TAS) from indicated airspeed, pressure altitude and outside air temperature. ISA-based, subsonic speeds only. For training use.

Inputs

Pressure altitude (ft)Outside air temperature (deg C)Indicated airspeed IAS (kt)

Result

True airspeed TAS (kt)

Approximated using ISA pressure and density model. Not for operational use.