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Speed of Sound in Air Formula:

C = 49.03 √460 + T in feet per second

OR

Cm = 20.05 √273 + Tc in meters per second

where:
C = Speed of sound in feet per second
T = Temperature in degrees Fahrenheit
Cm = Speed of sound in meters per second
Tc = Temperature in degrees Celsius

The temperature of air has a significant effect on the speed of sound. It is usually assumed that the speed of sound is not dependent on frequency or humidity. Sound travels much faster in solids than in air.

Speed of Sound in Engineering Materials:

Materialfpsm/s
Steel16,5005,029
Aluminum16,0004,877
Brick13,7004,176
Hard Wood13,0003,962
Glass13,0003,962
Copper12,8003,901
Brass11,4003,475
Concrete10,6003,231
Water4,7001,433
Lead3,8001,158
Cork1,200/1,700366/518
Air1,129344
Rubber130/49040/149




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