Feet per Second to Speed of Light Converter

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

Results in Speed of Light:
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1 ft/s = 1.0167E-9 c
Hint: use a scientific notation calculator to convert E notation to decimal

Do you want to convert speed of light to feet per second?

How to Convert Feet per Second to Speed of Light

To convert a foot per second measurement to a speed of light measurement, multiply the speed by the conversion ratio.

Since one foot per second is equal to 1.0167E-9 speed of light, you can use this simple formula to convert:

speed of light = feet per second × 1.0167E-9

The speed in speed of light is equal to the feet per second multiplied by 1.0167E-9.

For example, here's how to convert 500,000,000 feet per second to speed of light using the formula above.
500,000,000 ft/s = (500,000,000 × 1.0167E-9) = 0.508352 c

Feet per second and speed of light 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 formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression.[1]

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.

Learn more about feet per second.

What is the Speed of Light?

The speed of light is equal to exactly 299,792,458 meters per second, or 670,616,629 miles per hour. The definition of the speed of light is actually derived from the most recent 1983 international definition of the meter.[2]

Speed of light can be abbreviated as c; for example, 1 speed of light can be written as 1 c.

Learn more about the speed of light.

Foot per Second to Speed of Light Conversion Table

Table showing various Foot per second measurements converted to speed of light.
Feet Per Second Speed Of Light
1 ft/s 0.0000000010167 c
2 ft/s 0.0000000020334 c
3 ft/s 0.0000000030501 c
4 ft/s 0.0000000040668 c
5 ft/s 0.0000000050835 c
6 ft/s 0.0000000061002 c
7 ft/s 0.0000000071169 c
8 ft/s 0.0000000081336 c
9 ft/s 0.0000000091503 c
10 ft/s 0.000000010167 c
100 ft/s 0.00000010167 c
1,000 ft/s 0.0000010167 c
10,000 ft/s 0.000010167 c
100,000 ft/s 0.000102 c
1,000,000 ft/s 0.001017 c
10,000,000 ft/s 0.010167 c
100,000,000 ft/s 0.10167 c
1,000,000,000 ft/s 1.0167 c


  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
  2. National Institute of Standards and Technology, SI Redefinition: Meter, https://www.nist.gov/si-redefinition/meter

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