Mach 6 is about 4,567 mph
Mach 10 = 7,612.1 mph
Mach 19 is 14,462,934 miles per an hour
2664.2 Miles Per Hour
How fast is 0.85 mach?
1,150.9 miles per hour.
Mach one is the speed of sound, which is about 761.2 miles per hour (340.3 meters per second). Mach two is twice the speed of sound, which is about 1,522.4 miles per hour (680.6 meters per second).
Mach 10 is equal to 7,612.71 miles per hour (mph) at standard atmospheric conditions.
Mach 1 = 761.207051 Miles Per Hour Mach 2 = 1,522.4141 Miles Per Hour Mach 3 = 2,283.62115 Miles Per Hour Mach 4 = 3,044.8282 Miles Per Hour http://en.wikipedia.org/wiki/Mach_number
Mach 9 would be approximately 9 times the speed of sound, or 6,192 miles per hour.
It's speed in miles per hour is 1294.0519864 mph.
MACH 1.8 (1,190 Miles per hour)
Mach 1 is 761.21 mph.Use this equation to convert Mach to miles per hour: mach x 761.21 = mph