Convert foot/second to kilometer/second

Please provide values below to convert foot/second [ft/s] to kilometer/second [km/s], or Convert kilometer/second to foot/second.

1 ft/s = 0.0003048 km/s. To convert foot/second to kilometer/second, multiply the value by 0.0003048; to go the other way, divide by it (1 km/s = 3280.83989501 ft/s). Both units measure speed and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 ft/s = 0.0003048 km/s
  • 1 km/s = 3280.83989501 ft/s
  • 10 ft/s = 0.003048 km/s
  • 100 ft/s = 0.03048 km/s



How to Convert Foot/second to Kilometer/second

1 ft/s = 0.0003048 km/s

Example: convert 15 ft/s to km/s:
15 ft/s = 15 × 0.0003048 km/s = 0.004572 km/s


Foot/second to Kilometer/second Conversion Table

foot/second kilometer/second
1 ft/s 0.0003048 km/s
2 ft/s 0.0006096 km/s
3 ft/s 0.0009144 km/s
5 ft/s 0.001524 km/s
10 ft/s 0.003048 km/s
20 ft/s 0.006096 km/s
50 ft/s 0.01524 km/s
100 ft/s 0.03048 km/s
500 ft/s 0.1524 km/s
1000 ft/s 0.3048 km/s

Foot/second

Foot per second (ft/s) is a unit of speed representing the distance of one foot traveled in one second.

History/Origin

The foot per second has been used historically in engineering, physics, and aeronautics, originating from the imperial measurement system where the foot is a standard unit of length. Its usage predates the metric system and has been common in the United States and other countries using imperial units.

Current Use

Today, ft/s is primarily used in fields such as physics, engineering, and aviation to measure speeds, especially in contexts where imperial units are standard. It is also used in sports and safety standards related to speed measurements.


Kilometer/second

A kilometer per second (km/s) is a unit of speed representing the distance of one kilometer traveled in one second.

History/Origin

The kilometer per second has been used in scientific contexts, particularly in astronomy and physics, to measure high velocities such as the speed of celestial objects and spacecraft. Its usage became prominent with the development of precise measurement techniques in the 20th century.

Current Use

Today, km/s is primarily used in astronomy, astrophysics, and space science to describe the velocities of stars, galaxies, and spacecraft. It is also used in scientific research involving high-speed phenomena.


Frequently Asked Questions

What is 1 foot/second in kilometer/second?

1 foot/second (ft/s) = 0.0003048 kilometer/second (km/s).

How do you convert foot/second to kilometer/second?

Multiply the foot/second value by 0.0003048. For example, 25 ft/s × 0.0003048 = 0.00762 km/s.

What is 10 foot/second in kilometer/second?

10 ft/s = 0.003048 km/s.

Which unit is larger, the foot/second or the kilometer/second?

The kilometer/second is the larger unit: 1 ft/s equals only 0.0003048 km/s.