Light Year to Kilometer (ly to km)
Convert ly to km — Length converter
One light year equals 9.461000e+12 km, so to convert light years to kilometers you multiply the value by 9.461000e+12. A light year is larger than a kilometer — going the other way, 1 km = 1.056971e-13 ly. For example, 10 ly = 9.461000e+13 km and 50 ly = 4.730500e+14 km.
9.461000e+12Click to copy
1 ly = 9.461000e+12 km
Light Year to Kilometer formula
1 Light Year = 9.461000e+12 km
Worked examples
- 25 ly = 2.365250e+14 km
- 100 ly = 9.461000e+14 km
Light Year to Kilometer conversion table
| Light Year (ly) | Kilometer (km) |
|---|---|
| 1 | 9.461000e+12 |
| 2 | 1.892200e+13 |
| 3 | 2.838300e+13 |
| 5 | 4.730500e+13 |
| 8 | 7.568800e+13 |
| 10 | 9.461000e+13 |
| 12 | 1.135320e+14 |
| 15 | 1.419150e+14 |
| 20 | 1.892200e+14 |
| 25 | 2.365250e+14 |
| 50 | 4.730500e+14 |
| 100 | 9.461000e+14 |
| 250 | 2.365250e+15 |
| 500 | 4.730500e+15 |
| 1000 | 9.461000e+15 |
Frequently asked questions
How many kilometers are in one light year?
One light year equals 9.461000e+12 kilometers (km).
How many light years are in one kilometer?
One kilometer equals 1.056971e-13 light years (ly).
How do you convert light years to kilometers?
1 Light Year = 9.461000e+12 km. Use the calculator above for any value.
What is 5 ly in km?
5 ly = 4.730500e+13 km.
What is 100 ly in km?
100 ly = 9.461000e+14 km.
What is 10 ly in km?
10 ly = 9.461000e+13 km.
What is 20 ly in km?
20 ly = 1.892200e+14 km.
Is a light year bigger than a kilometer?
Yes. A light year is larger — one light year equals 9.461000e+12 kilometers (km).