Convert kilometer/second to foot/second

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

1 km/s = 3280.83989501 ft/s. To convert kilometer/second to foot/second, multiply the value by 3280.83989501; to go the other way, divide by it (1 ft/s = 0.0003048 km/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 km/s = 3280.83989501 ft/s
  • 1 ft/s = 0.0003048 km/s
  • 10 km/s = 32808.3989501 ft/s
  • 100 km/s = 328083.989501 ft/s



How to Convert Kilometer/second to Foot/second

1 km/s = 3280.83989501312 ft/s

Example: convert 15 km/s to ft/s:
15 km/s = 15 × 3280.83989501312 ft/s = 49212.5984251968 ft/s


Kilometer/second to Foot/second Conversion Table

kilometer/second foot/second
1 km/s 3280.83989501 ft/s
2 km/s 6561.67979003 ft/s
3 km/s 9842.51968504 ft/s
5 km/s 16404.1994751 ft/s
10 km/s 32808.3989501 ft/s
20 km/s 65616.7979003 ft/s
50 km/s 164041.994751 ft/s
100 km/s 328083.989501 ft/s
500 km/s 1640419.94751 ft/s
1000 km/s 3280839.89501 ft/s

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.


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.


Frequently Asked Questions

What is 1 kilometer/second in foot/second?

1 kilometer/second (km/s) = 3280.83989501 foot/second (ft/s).

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

Multiply the kilometer/second value by 3280.83989501. For example, 25 km/s × 3280.83989501 = 82020.9973753 ft/s.

What is 10 kilometer/second in foot/second?

10 km/s = 32808.3989501 ft/s.

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

The kilometer/second is the larger unit: 1 km/s = 3280.83989501 ft/s.