ly to Mpc
92 unitsConvert Light year to Megaparsec (ly to Mpc)
1 light year = 3.066014e-7 megaparsecs. Convert light years to megaparsecs instantly, with the exact factor, the formula and a reference table of common values.
ly to Mpc conversion table
| ly | Mpc |
|---|---|
| 1 ly | 3.066014e-7 Mpc |
| 2 ly | 6.132028e-7 Mpc |
| 3 ly | 9.198042e-7 Mpc |
| 5 ly | 0.000001533006969 Mpc |
| 10 ly | 0.000003066013938 Mpc |
| 20 ly | 0.000006132027876 Mpc |
| 50 ly | 0.00001533006969 Mpc |
| 100 ly | 0.00003066013938 Mpc |
| 250 ly | 0.00007665034845 Mpc |
| 500 ly | 0.0001533006969 Mpc |
| 1000 ly | 0.0003066013938 Mpc |
What is a light year?
A light year is a distance, not a time: it is how far light travels in one year, about 9.46 trillion kilometers. Light covers roughly 300,000 kilometers every second, and a year gives it a very long run.
Astronomers use light years because space is so empty. The nearest star beyond the Sun, Proxima Centauri, is about 4.2 light years away, and our galaxy is roughly 100,000 light years across. Seeing a star ten light years away means seeing light that left it ten years ago.
In writing, the light year is usually shortened to "ly". One light year is 9.460730e+15 meters, and that ratio is what every figure on this page is built from.