Calculations are based on the speed of sound at 21C 344 meters per second. The effect of humidity is too small to be a significant influence. You can also calculate how long it takes sound to travel a given distance or how far sound will travel within a given time span.
Sound travels through air at about 1100 to 1200 feet per second our default is 1150.
The result will depend on the unit of. Discover how to work out the speed of an object. This is the distance that the ultrasound traveled to the obstacle and back to the sensor so the obstacle is 3 432 1 715 meters away from the sensor. You can also calculate how long it takes sound to travel a given distance or how far sound will travel within a given time span.