How fast is mach 1?

At STP, Mach 1 is 661knots (340m/s, 1224km/h, 765mph). Thanks for using ChaCha.

Answered - 1024 days ago at 12:50pm on Aug 11 2009

At sea level, Mach 1 (or speed of sound) is: 1,116.4 ft/s 340.3 m/s 761.2 mph 1,225.1 km/h 661.5 knots That's speedy! ChaCha!

Answered by Janell B. - 1084 days ago at 8:04pm on Jun 11 2009

Mach 1 = 340.29 m / s. It's the speed of sound!

Answered by Russell B. - 1135 days ago at 9:15pm on Apr 21 2009

Mach 1 is equivalent to 1,116.4 ft/s; 340.29 m/s; and 761.18 mph. That's fast! Ask ChaCha! We're here 24/7!

Answered by Travis T. - 1160 days ago at 4:11pm on Mar 27 2009

Representative Performanceof the Mustang Mach 1 is 0-60 mph, sec: 5.7 1/4 mile, sec. @ mph: 13.9 @ 103

Answered by Darla T. - 1183 days ago at 12:43am on Mar 05 2009

The standard atmospheric model tells us that the speed of sound, or Mach 1, at sea level is 761.2 mph. Faster even than ChaCha!

Answered by Eliza T. - 1223 days ago at 11:52pm on Jan 23 2009

The speed of sound (Mach 1) at sea level on a 59F day is 1,116.4 feet/second or 761.2 MPH or 340.4 meters/second. Note it changes.

Answered by Tommy H. - 1251 days ago at 1:25am on Dec 27 2008