Speed of Light to Feet per Second Conversion (c to ft/s)

Speed of Light to Feet per Second Converter

Enter the speed in speed of light below to convert it to feet per second.

Result in Feet per Second:

1 c = 983,571,056.43045 ft/s

How to Convert Speed of Light to Feet per Second

To convert a measurement in speed of light to a measurement in feet per second, multiply the speed by the following conversion ratio: 983,571,056.43045 feet per second/speed of light.

Since one speed of light is equal to 983,571,056.43045 feet per second, you can use this simple formula to convert:

feet per second = speed of light × 983,571,056.43045

The speed in feet per second is equal to the speed in speed of light multiplied by 983,571,056.43045.

For example, here's how to convert 5 speed of light to feet per second using the formula above.

feet per second = (5 c × 983,571,056.43045) = 4,917,855,282.1522 ft/s

Speed of light and feet per second are both units used to measure speed. Keep reading to learn more about each unit of measure.

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.^[1]

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.

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.^[2] 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:
v_ft/s = d_ft / t_sec

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

Learn more about feet per second.

Speed of Light to Foot per Second Conversion Table

Table showing various speed of light measurements converted to feet per second.
Speed Of Light	Feet Per Second
0.00000001 c	9.8357 ft/s
0.00000002 c	19.67 ft/s
0.00000003 c	29.51 ft/s
0.00000004 c	39.34 ft/s
0.00000005 c	49.18 ft/s
0.00000006 c	59.01 ft/s
0.00000007 c	68.85 ft/s
0.00000008 c	78.69 ft/s
0.00000009 c	88.52 ft/s
0.000000001 c	0.983571 ft/s
0.00000001 c	9.8357 ft/s
0.0000001 c	98.36 ft/s
0.000001 c	983.57 ft/s
0.00001 c	9,836 ft/s
0.0001 c	98,357 ft/s
0.001 c	983,571 ft/s
0.01 c	9,835,711 ft/s
0.1 c	98,357,106 ft/s
1 c	983,571,056 ft/s

Table showing various speed of light measurements converted to feet per second.

Speed Of Light

Feet Per Second

0.00000001 c

9.8357 ft/s

0.00000002 c

19.67 ft/s

0.00000003 c

29.51 ft/s

0.00000004 c

39.34 ft/s

0.00000005 c

49.18 ft/s

0.00000006 c

59.01 ft/s

0.00000007 c

68.85 ft/s

0.00000008 c

78.69 ft/s

0.00000009 c

88.52 ft/s

0.000000001 c

0.983571 ft/s

0.00000001 c

9.8357 ft/s

0.0000001 c

98.36 ft/s

0.000001 c

983.57 ft/s

0.00001 c

9,836 ft/s

0.0001 c

98,357 ft/s

0.001 c

983,571 ft/s

0.01 c

9,835,711 ft/s

0.1 c

98,357,106 ft/s

1 c

983,571,056 ft/s

References

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