Table Of Contents
Kilometers to light year Conversion
1 kilometers (km) is equal to 0.0000000000001057000834 light year (ly).
1 km = 0.0000000000001057000834 ly
or
1 ly = 9460730473000 km
Formula
To convert a length from kilometers (km) to light year (ly), divide the length in kilometers by 9460730473000
l(ly) = l(km) / 9460730473000
Examples:
Convert 15 kilometers to light year:
l(ly) = 15km / 9460730473000 = 0.000000000001585501251 ly
Conversion table
| Kilometers (km) | Light year (ly) |
|---|---|
| 1 km | 0 ly |
| 2 km | 0 ly |
| 3 km | 0 ly |
| 5 km | 1e-12 ly |
| 10 km | 1e-12 ly |
| 15 km | 2e-12 ly |
| 20 km | 2e-12 ly |
| 21 km | 2e-12 ly |
| 25 km | 3e-12 ly |
| 42 km | 4e-12 ly |
| 50 km | 5e-12 ly |
| 100 km | 1.1e-11 ly |
| 250 km | 2.6e-11 ly |
| 500 km | 5.3e-11 ly |
| 1000 km | 1.06e-10 ly |
| Light year (ly) | Kilometers (km) |
|---|---|
| 1 ly | 9.46073e12 km |
| 2 ly | 1.892146e13 km |
| 3 ly | 2.838219e13 km |
| 5 ly | 4.730365e13 km |
| 10 ly | 9.46073e13 km |
| 15 ly | 1.41911e14 km |
| 20 ly | 1.892146e14 km |
| 21 ly | 1.986753e14 km |
| 25 ly | 2.365183e14 km |
| 42 ly | 3.973507e14 km |
| 50 ly | 4.730365e14 km |
| 100 ly | 9.46073e14 km |
| 250 ly | 2.365183e15 km |
| 500 ly | 4.730365e15 km |
| 1000 ly | 9.46073e15 km |
Frequently asked questions
How do I convert kilometers to light year?
Divide the value in kilometers by 9460730473000 to get the result in light year. For example, 5 km ÷ 9460730473000 = 1e-12 ly.
How many light year are in 1 kilometers?
1 kilometers (km) is equal to 0 light year (ly).
How do I convert light year back to kilometers?
Use the inverse operation: multiply the value in light year by 9460730473000 to get the result in kilometers.
How accurate is the kilometers to light year conversion?
The converter multiplies by the conversion factor 9460730473000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
