Seconds per mile (spm) to Mach number ((M)*) converter

Converting from Seconds per mile (spm) to Mach number ((M)*)

What is Seconds per mile (spm)

Seconds per mile (spm) is a unit of speed that represents the time taken to travel one mile in seconds. It is commonly used in aviation and aerospace engineering to measure speed.

What is Mach number ((M)*)

Mach number ((M)*) is a dimensionless quantity that represents the ratio of the speed of an object to the speed of sound in the medium through which the object is moving. It is commonly used to describe the speed of aircraft and spacecraft.

Conversion Formulas

To convert from Seconds per mile (spm) to Mach number ((M)*), you can use the formula:

Mach number ((M)*)=Seconds per mile (spm)1​×0.212

And to convert from Mach number ((M)*) to Seconds per mile (spm), you can use the formula:

Seconds per mile (spm)=Mach number ((M)*)1​×0.212

Examples

  1. Converting 6 spm to Mach number ((M)*):

Mach number ((M)*)=61​×0.212=0.7882218

  1. Converting 2 spm to Mach number ((M)*):

Mach number ((M)*)=21​×0.212=2.364665

  1. Converting 4 ((M)*) to Seconds per mile (spm):

Seconds per mile (spm)=41​×0.212=1.182333

Now you can easily perform conversions from Seconds per mile (spm) to Mach number ((M)*) and vice versa using the formulas provided above.

Seconds per mile to Mach number conversion table

spm to (M)* conversion table

Seconds per mile (spm)Mach number ((M)*)
0.01 spm472.9331 (M)*
0.1 spm47.29331 (M)*
1 spm4.729331 (M)*
2 spm2.364665 (M)*
3 spm1.576444 (M)*
4 spm1.182333 (M)*
5 spm0.9458662 (M)*
6 spm0.7882218 (M)*
7 spm0.6756187 (M)*
8 spm0.5911664 (M)*
9 spm0.5254812 (M)*
10 spm0.4729331 (M)*
10 spm0.4729331 (M)*
20 spm0.2364665 (M)*
30 spm0.1576444 (M)*
40 spm0.1182333 (M)*
50 spm0.09458662 (M)*
60 spm0.07882218 (M)*
70 spm0.06756187 (M)*
80 spm0.05911664 (M)*
90 spm0.05254812 (M)*
100 spm0.04729331 (M)*
1 000 spm0.004729331 (M)*
2 000 spm0.002364665 (M)*
3 000 spm0.001576444 (M)*
4 000 spm0.001182333 (M)*
5 000 spm0.0009458662 (M)*
6 000 spm0.0007882218 (M)*
7 000 spm0.0006756187 (M)*
8 000 spm0.0005911664 (M)*
9 000 spm0.0005254812 (M)*
10 000 spm0.0004729331 (M)*