Megaparsecs to light-years
Type a value in Mpc to get it in ly instantly.
3,261,564ly
That's 1.29× as far as the Andromeda galaxy — nothing on our list beats it. Light takes about 3,262,000 years to cross it.
What it means
How far is that?
One astronomical unit is defined as exactly 149,597,870,700 m, and a light-year uses the Julian year of 365.25 days.
The math
How to convert Mpc to ly
To convert megaparsecs to light-years, multiply by 3,261,560.
Example: 1 Mpc × 3,261,560 = 3,261,560 ly.
In the other direction, 1 ly = 3.066×10⁻⁷ Mpc.
Every unit
Your distance in every unit
Tables
Mpc to ly conversion table
| Mpc | ly |
|---|---|
| 0.1 Mpc | 326,156 ly |
| 0.5 Mpc | 1,630,780 ly |
| 1 Mpc | 3,261,560 ly |
| 2 Mpc | 6,523,130 ly |
| 5 Mpc | 16,307,800 ly |
| 10 Mpc | 32,615,600 ly |
| 25 Mpc | 81,539,100 ly |
| 50 Mpc | 163,078,000 ly |
| 100 Mpc | 326,156,000 ly |
| 500 Mpc | 1.631×10⁹ ly |
| 1,000 Mpc | 3.262×10⁹ ly |
ly to Mpc conversion table
| ly | Mpc |
|---|---|
| 0.1 ly | 3.066×10⁻⁸ Mpc |
| 0.5 ly | 1.533×10⁻⁷ Mpc |
| 1 ly | 3.066×10⁻⁷ Mpc |
| 2 ly | 6.132×10⁻⁷ Mpc |
| 5 ly | 1.533×10⁻⁶ Mpc |
| 10 ly | 3.066×10⁻⁶ Mpc |
| 25 ly | 7.665×10⁻⁶ Mpc |
| 50 ly | 1.533×10⁻⁵ Mpc |
| 100 ly | 3.066×10⁻⁵ Mpc |
| 500 ly | 0.000153301 Mpc |
| 1,000 ly | 0.000306601 Mpc |
Quick answers
Quick answers
- How many ly is 1 Mpc?
- 1 Mpc is 3,261,560 ly.
- How many ly is 10 Mpc?
- 10 Mpc is 32,615,600 ly.
The units
About these units
Megaparsecs (Mpc)
A million parsecs, the scale of distances between galaxies.
Light-years (ly)
How far light travels in a Julian year: 9.46 trillion kilometers.
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