How to calculate the speed of sound in an ideal gas First determine the variables that must be known in order to solve. To calculate the speed of sound in water just choose the temperature - in Fahrenheit F or Celsius C. The speed of sound can be calculated as the distance-per-time ratio or as the product of frequency and wavelength.
I figure four significant figures is pretty good.
C_air 3313 x 1 T27315 ms You may think airs humidity would be a factor but this formula shows that is not the case. You can calculate speed of sound in MilesHour KnotsHour MetresSec FeetSec and KmHour. The speed of sound in room temperature air is 346 meters per second. 3 k2 k1 2 1.