Miles (mi) to Light-years (ly) Conversion
Miles
The mile is a unit of length with roots in the Roman mille passuum ("thousand paces"), approximately 1,480 metres. The modern international mile, standardised in 1959, is defined as exactly 1,609.344 metres. It remains the primary unit of road distance in the United States, United Kingdom, and a small number of other countries, and is used in aviation for visibility reporting. The statute mile should be distinguished from the nautical mile (1,852 m), used in maritime and aerial navigation worldwide.
Light-years
The light-year is a unit of astronomical distance equal to the distance that light travels in a vacuum in one Julian year (365.25 days), approximately 9.461 × 10¹⁵ metres. Despite containing the word "year," it is strictly a unit of distance, not time. The nearest star system, Alpha Centauri, is approximately 4.37 light-years away, while the observable universe extends approximately 46 billion light-years in every direction.
| Miles (mi) | Light-years (ly) |
|---|---|
| 0.1 mi | 0.000000000000017 ly |
| 1 mi | 0.00000000000017 ly |
| 2 mi | 0.00000000000034 ly |
| 3 mi | 0.00000000000051 ly |
| 5 mi | 0.000000000000851 ly |
| 10 mi | 0.0000000000017 ly |
| 20 mi | 0.0000000000034 ly |
| 30 mi | 0.0000000000051 ly |
| 50 mi | 0.00000000000851 ly |
| 100 mi | 0.000000000017 ly |
| 1000 mi | 0.00000000017 ly |
Frequently Asked Questions (FAQ)
How many light-years are in 1 miles?
1 miles (mi) is exactly 0 light-years (ly).
How do I convert miles to light-years?
Multiply the value in miles by 0 to get the result in light-years. Or use the converter above — type any number and see the result instantly.