Mile to Light-year
Convert Mile to Light-year instantly. Free online astronomy unit converter with exact formula, conversion table and FAQ.
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Formula
light-year = mile × 1.70107795e-13
mile = light-year × 5.87862537e+12
Conversion table
| 1 mi | 1.70107795e-13 ly |
| 5 mi | 8.50538975e-13 ly |
| 10 mi | 1.70107795e-12 ly |
| 20 mi | 3.4021559e-12 ly |
| 50 mi | 8.50538975e-12 ly |
| 100 mi | 1.70107795e-11 ly |
| 500 mi | 8.50538975e-11 ly |
| 1,000 mi | 1.70107795e-10 ly |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the mile (mi). A statute mile is exactly 1,609.344 meters.
What is the destination unit in this conversion?
The destination unit is the light-year (ly). A light-year is the distance light travels in one Julian year through a vacuum.
How do I convert mile to light-year?
Multiply the mile value by 1.70107795e-13. For example, 10 mi × 1.70107795e-13 = 1.70107795e-12 ly.
Is the mile to light-year conversion exact?
Yes. Both units have a fixed, defined relationship to the astronomy converter's distance base unit, so the conversion factor is exact rather than a measured approximation.
Where is this conversion commonly used?
It's used in astronomy, physics, and space science whenever a distance value expressed in mile needs to be compared with, or reported in, light-year.
Can I convert light-year back to mile?
Yes. Multiply the light-year value by 5.87862537e+12 to get mile.
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About this conversion
This page converts mile (mi) to light-year (ly) within the astronomy converter.
A statute mile is exactly 1,609.344 meters.
A light-year is the distance light travels in one Julian year through a vacuum.
The formula is light-year = mile × 1.70107795e-13, based on each unit's fixed relationship to the astronomy converter's distance base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common mile values already converted to light-year.