# Feet per Second to Kilometers per Second Converter

Enter the speed in feet per second below to get the value converted to kilometers per second.

Results in Kilometers per Second: 1 ft/s = 0.000305 km/s

Do you want to convert kilometers per second to feet per second?

## How to Convert Feet per Second to Kilometers per Second

To convert a measurement in feet per second to a measurement in kilometers per second, multiply the speed by the following conversion ratio: 0.000305 kilometers per second/foot per second.

Since one foot per second is equal to 0.000305 kilometers per second, you can use this simple formula to convert:

kilometers per second = feet per second × 0.000305

The speed in kilometers per second is equal to the speed in feet per second multiplied by 0.000305.

For example, here's how to convert 5,000 feet per second to kilometers per second using the formula above.
kilometers per second = (5,000 ft/s × 0.000305) = 1.524 km/s

Feet per second and kilometers per second are both units used to measure speed. Keep reading to learn more about each unit of measure.

## What Are Feet per Second?

Feet per second are a measurement of speed expressing the distance traveled in feet in one second.

The foot per second is a US customary and imperial unit of speed. Feet per second can be abbreviated as ft/s, and are also sometimes abbreviated as ft/sec or fps. For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps.

In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units. For example, ft/s is expressing a change in length or distance relative to a change in time.

Feet per second can be expressed using the formula:
vft/s = dft / tsec

The velocity in feet per second is equal to the distance in feet divided by time in seconds.

## What Are Kilometers per Second?

Kilometers per second are a measurement of speed expressing the distance traveled in kilometers in one second.

The kilometer per second, or kilometre per second, is an SI unit of speed in the metric system. Kilometers per second can be abbreviated as km/s, and are also sometimes abbreviated as km/sec. For example, 1 kilometer per second can be written as 1 km/s or 1 km/sec.

Kilometers per second can be expressed using the formula:
vkm/s = dkm / tsec

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.

## Foot per Second to Kilometer per Second Conversion Table

Table showing various foot per second measurements converted to kilometers per second.
Feet Per Second Kilometers Per Second
1 ft/s 0.000305 km/s
2 ft/s 0.00061 km/s
3 ft/s 0.000914 km/s
4 ft/s 0.001219 km/s
5 ft/s 0.001524 km/s
6 ft/s 0.001829 km/s
7 ft/s 0.002134 km/s
8 ft/s 0.002438 km/s
9 ft/s 0.002743 km/s
10 ft/s 0.003048 km/s
20 ft/s 0.006096 km/s
30 ft/s 0.009144 km/s
40 ft/s 0.012192 km/s
50 ft/s 0.01524 km/s
60 ft/s 0.018288 km/s
70 ft/s 0.021336 km/s
80 ft/s 0.024384 km/s
90 ft/s 0.027432 km/s
100 ft/s 0.03048 km/s
200 ft/s 0.06096 km/s
300 ft/s 0.09144 km/s
400 ft/s 0.12192 km/s
500 ft/s 0.1524 km/s
600 ft/s 0.18288 km/s
700 ft/s 0.21336 km/s
800 ft/s 0.24384 km/s
900 ft/s 0.27432 km/s
1,000 ft/s 0.3048 km/s
2,000 ft/s 0.6096 km/s
3,000 ft/s 0.9144 km/s
4,000 ft/s 1.2192 km/s
5,000 ft/s 1.524 km/s
6,000 ft/s 1.8288 km/s
7,000 ft/s 2.1336 km/s
8,000 ft/s 2.4384 km/s
9,000 ft/s 2.7432 km/s
10,000 ft/s 3.048 km/s

## References

1. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using