Speed of Sound Calculator

Calculator for determining the time it takes for sound to travel a distance and for the distance traveled. Helpful, e.g. during a thunderstorm, where lightning can be seen first and then thunder can be heard a few seconds later. The speed of sound at 20°C and high humidity is approx. 343 m/s (= 1235 km/h), at cooler temperatures and low humidity it is a little bit lower. Enter the duration or the distance, the other value will be calculated. Or calculate the speed of sound by deleting the value there and entering duration and distance.

Physics commonly uses SI units. Here is a calculator to convert lengths, temperature, pressure, speed and other units.