National Weather Service United States Department of Commerce

Active Weather Pattern Continues for the Northwestern U.S.

A series of Pacific storm systems will bring periods of locally heavy rain, gusty winds, and mountain snow to portions of Washington and Oregon for the next couple days. In addition, much of the northwestern U.S. and Intermountain West will experience strong winds from these storm systems, particularly in Sierra Nevada, Great Basin, and the northern Rockies/High Plains. Read More >

The Speed of Sound Calculation

by Tim Brice and Todd Hall
The speed of sound is dependent on the density of the air...and the density of the air is dependent on the temperature of the air.  
Enter your air temp and choose your units: The speed of sound:
Fahrenheit knots
Celsius m/s
Kelvin ft/s
Rankine km/h


What is the formula to calculate the speed of sound?