Light-years to miles
1 light-year in miles
1 ly = 5,878,625,400,000 mi
mi = ly × 5,878,625,373,000
To convert light-years to miles, multiply by 5,878,625,373,000. The table below gives the values people look up most often, and the converter works for any number.
Light-years to miles table
| Light-years | Miles |
|---|---|
| 1 ly | 5,878,625,400,000 |
| 2 ly | 11,757,251,000,000 |
| 3 ly | 17,635,876,000,000 |
| 4 ly | 23,514,501,000,000 |
| 5 ly | 29,393,127,000,000 |
| 10 ly | 58,786,254,000,000 |
| 15 ly | 88,179,381,000,000 |
| 20 ly | 117,572,510,000,000 |
| 25 ly | 146,965,630,000,000 |
| 30 ly | 176,358,760,000,000 |
| 40 ly | 235,145,010,000,000 |
| 50 ly | 293,931,270,000,000 |
| 75 ly | 440,896,900,000,000 |
| 100 ly | 587,862,540,000,000 |
| 250 ly | 1.4696563 × 10^15 |
| 500 ly | 2.9393127 × 10^15 |
| 1,000 ly | 5.8786254 × 10^15 |
How the conversion works
The relationship is mi = ly × 5,878,625,373,000. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Common questions
- How many miles are in one light-year?
- One light-year equals 5,878,625,400,000 miles. mi = ly × 5,878,625,373,000.
- How do you convert light-years to miles?
- Use mi = ly × 5,878,625,373,000. So 10 ly is 58,786,254,000,000 mi.
- How many light-years are in one mile?
- One mile equals 1.701 × 10^-13 light-years, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place