# kilometre per second to speed of light conversion

Conversion number between kilometre per second [km/s] and speed of light [c] is 3.3356409519815 × 10-6. This means, that kilometre per second is smaller unit than speed of light.

### Contents [show][hide]

Switch to reverse conversion:
from speed of light to kilometre per second conversion

### Enter the number in kilometre per second:

Decimal Fraction Exponential Expression
 [km/s]
eg.: 10.12345 or 1.123e5

Result in speed of light

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 kilometre per second = (exactly) (1000) / (299792458) = 3.3356409519815 × 10-6 speed of light
• 1 speed of light = (exactly) (299792458) / (1000) = 299792.458 kilometre per second
• ? kilometre per second × (1000  ("m/s"/"kilometre per second")) / (299792458  ("m/s"/"speed of light")) = ? speed of light

### High precision conversion

If conversion between kilometre per second to metre-per-second and metre-per-second to speed of light is exactly definied, high precision conversion from kilometre per second to speed of light is enabled.

Decimal places: (0-800)

kilometre per second
Result in speed of light:
?

### kilometre per second to speed of light conversion chart

 Start value: [kilometre per second] Step size [kilometre per second] How many lines? (max 100)

visual:
kilometre per secondspeed of light
00
103.3356409519815 × 10-5
206.671281903963 × 10-5
300.00010006922855945
400.00013342563807926
500.00016678204759908
600.00020013845711889
700.00023349486663871
800.00026685127615852
900.00030020768567834
1000.00033356409519815
1100.00036692050471797
Copy to Excel

## Multiple conversion

Enter numbers in kilometre per second and click convert button.
One number per line.

Converted numbers in speed of light:
Click to select all

## Details about kilometre per second and speed of light units:

Convert Kilometre per second to other unit:

### kilometre per second

Definition of kilometre per second unit: ≡ 1 km / 1 s. The speed with which the body moves 1 km in 1 second. The Earth's circulation speed is about 30 km/s.

Convert Speed of light to other unit:

### speed of light

Definition of speed of light unit: ≡ 299 792 458 m/s. Light velocity (in vacuum) is one of the basic physical constants. Sign c (Latin celeritas = speed). Its value is exactly: 299792458 m/s. Example: electromagnetic waves propagation speed 1 c.

← Back to Speed units