Wolfram|Alpha

Computing...

Input information:

true airspeed | 550 knots\naltitude | 35000 feet


Indicated airspeed:

323.5 knots\n166.4 m\/s  (meters per second)\n599.2 km\/h  (kilometers per hour)


Mach number:

M | 0.954


Atmospheric properties at 35000 feet:

sound speed | 296.6 m\/s  (meters per second)\ndensity | 0.3806 kg\/m^3  (kilograms per cubic meter)\npressure | 23.92 kPa  (kilopascals)\ntemperature | -54.23 °C  (degrees Celsius)\n(assuming Standard Atmosphere)

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