National Weather Service United States Department of Commerce

Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing across the eastern U.S. through the Independence Day holiday weekend. Peak heat indices of up to 115 degrees are possible. Isolated to scattered severe thunderstorms are possible from the northern/central Plains into the Midwest, Ohio Valley, and Mid-Atlantic Friday. Read More >

The Speed of Sound Calculation

by Tim Brice and Todd Hall
 
 
The speed of sound depends on several variables, but the only independent variable we need to calculate the speed of sound is  the temperature of the air.  
Enter your air temp and choose your units: The speed of sound:
mph
Fahrenheit knots
Celsius m/s
Kelvin ft/s
Rankine km/h

 

What is the formula to calculate the speed of sound?