Mach 0.8-1.0
Mach 1.7 is equal to about 1294 mph.
Mach 6 is about 4,449.3 mph
645.38104_MPH_">645.38104 MPH-is 0.87 Mach -
the SR 71 goes really fast it goes Mach 7 NOT Mach 3.
Mach 3.3 is about 2,512 mph depending on altitude.
Mach 889 is about 659,233 mph
mach 2.03
1,750.8 mph
Mach 6 is about 4,567 mph
Mach 0.7 is 533 mi/h (rounded)
mach 2.5.