Table Of Contents
Light year to kilometers Conversion
1 light year (ly) is equal to 9460730473000 kilometers (km).
1 ly = 9460730473000 km
or
1 km = 0.0000000000001057000834 ly
Formula
To convert a length from light year (ly) to kilometers (km), multiply the length in light year by 9460730473000
l(km) = l(ly) × 9460730473000
Examples:
Convert 100 light year to kilometers:
l(km) = 100ly × 9460730473000 = 946073047300000 km
Conversion table
| 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 |
| 20 ly | 1.892146e14 km |
| 25 ly | 2.365183e14 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 |
| 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 |
| 20 km | 2e-12 ly |
| 25 km | 3e-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 |
Frequently asked questions
How do I convert light year to kilometers?
Multiply the value in light year by 9460730473000 to get the result in kilometers. For example, 5 ly × 9460730473000 = 4.730365e13 km.
How many kilometers are in 1 light year?
1 light year (ly) is equal to 9.46073e12 kilometers (km).
How do I convert kilometers back to light year?
Use the inverse operation: divide the value in kilometers by 9460730473000 to get the result in light year.
How accurate is the light year to kilometers 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:
