Kilometer per Second to Mile per Second Conversion

Convert between Kilometer per Second and Mile per Second quickly and accurately.

km/s
mi/s

How to Convert Kilometer per Second to Mile per Second

Conversion Formula

1 km/s = 0.621 mi/s
1 mi/s = 1.609 km/s

Example

Convert 15 km/s to mi/s:

15 km/s = 15 × 0.621 mi/s = 9.321 mi/s

Unit Information

Learn about the speed units you're converting between

Kilometer per Second

km/s

Definition

The kilometer per second is a unit of speed representing the distance of one kilometer traveled in one second. It is used for measuring extremely high speeds such as those of spacecraft, projectiles, or other high-velocity objects in physics and engineering.

History/Origin

Kilometer per second was developed for measuring extremely high velocities in physics, astronomy, and aerospace engineering. It became essential for expressing speeds of spacecraft, satellites, and other high-velocity objects in space exploration.

Current Use

Kilometer per second is used in aerospace engineering for spacecraft velocities, in physics for high-speed particle studies, in astronomy for celestial object speeds, and in military applications for projectile velocities.

Multiplier

1000

Offset

0

Mile per Second

mi/s

Definition

The mile per second is a unit of speed representing the distance of one statute mile traveled in one second. It is used for measuring extremely high speeds such as those of spacecraft, projectiles, or other high-velocity objects in imperial system countries.

History/Origin

Mile per second was developed for measuring extremely high velocities in physics, astronomy, and aerospace engineering in imperial system countries. It became essential for expressing speeds of spacecraft and other high-velocity objects.

Current Use

Mile per second is used in aerospace engineering for spacecraft velocities, in physics for high-speed particle studies, in astronomy for celestial object speeds, and in military applications in countries using imperial units.

Multiplier

1609.344

Offset

0

Kilometer per Second to Mile per Second Conversion Table

Kilometer per Second [km/s] Mile per Second [mi/s]
1 km/s 0.621371 mi/s
10 km/s 6.213712 mi/s
25 km/s 15.53428 mi/s
50 km/s 31.06856 mi/s
100 km/s 62.137119 mi/s
0 km/s 0E+0 mi/s
-10 km/s -6.213712 mi/s
-40 km/s -24.854848 mi/s

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