Convert light years to miles
1 ly = 5,878,625,373,183.61 mi. Change the amount below, or read the formula and the reference table further down.
1 light year equals
miles
1 ly = 5,878,625,373,183.61 mi
The formula
Light years and miles both measure length from the same zero, so a single multiplier does the job.
mi = ly × 5,878,625,373,183.61
Going the other way? Convert miles to light years.
Light years to miles table
Common values, rounded for reading.
| Light years (ly) | Miles (mi) |
|---|---|
| 1 | 5,878,625,373,183.61 |
| 2 | 11,757,250,746,367.22 |
| 3 | 17,635,876,119,550.82 |
| 4 | 23,514,501,492,734.43 |
| 5 | 29,393,126,865,918.04 |
| 6 | 35,271,752,239,101.65 |
| 7 | 41,150,377,612,285.25 |
| 8 | 47,029,002,985,468.86 |
| 9 | 52,907,628,358,652.47 |
| 10 | 58,786,253,731,836.08 |
| 15 | 88,179,380,597,754.11 |
| 20 | 117,572,507,463,672.16 |
| 25 | 146,965,634,329,590.2 |
| 30 | 176,358,761,195,508.22 |
| 40 | 235,145,014,927,344.3 |
| 50 | 293,931,268,659,180.4 |
| 75 | 440,896,902,988,770.5 |
| 100 | 587,862,537,318,360.8 |
| 250 | 1.4697 × 10^15 |
| 500 | 2.9393 × 10^15 |
| 1,000 | 5.8786 × 10^15 |
Questions people ask
- How many miles are in a light year?
- One light year equals 5,878,625,373,183.61 miles.
- How do I convert light years to miles by hand?
- Multiply the number of light years by 5,878,625,373,183.61. For a rough check, 5,878,625,373,183.61 is close enough for most everyday use.
- What is 1 light year in miles?
- 1 light year is 5,878,625,373,183.61 miles.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.