Converting from Kilometer per second (km/s) to Seconds per mile (spm)

What is Kilometer per second (km/s)

Kilometer per second (km/s) is a unit of speed that represents the distance traveled in kilometers in one second.

What is Seconds per mile (spm)

Seconds per mile (spm) is a unit of speed that represents the time taken to travel one mile.

Conversion Formulas

The default conversion factor between km/s and spm is 1 km/s = 1.609344 spm. To convert from km/s to spm, use the formula:

Seconds per mile (spm)=Kilometers per second (km/s)1​×1.609344

To convert from spm to km/s, use the formula:

Kilometers per second (km/s)=Seconds per mile (spm)1​×1.609344

Examples

• Converting 3 km/s to spm:

Seconds per mile (spm)=31​×1.609344=0.536448

• Converting 11 spm to km/s:

Kilometers per second (km/s)=111​×1.609344=0.146304

• Converting 10 km/s to spm:

Seconds per mile (spm)=101​×1.609344=0.1609344

Use these formulas and examples to easily convert between Kilometers per second (km/s) and Seconds per mile (spm) for your speed calculations.