Convert Nautical miles to light years
1 nautical mile = 1.957566e-13 light years · ly = nmi ÷ 5,108,385,784,000
When you need this conversion
This conversion goes from nautical miles, the navigation unit used at sea and in aviation, to light years, the astronomical distance light travels in a year. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Nautical miles to light years conversion table
| Nautical miles (nmi) | Light years (ly) |
|---|---|
| 1 nmi | 1.957566e-13 ly |
| 2 nmi | 3.915131e-13 ly |
| 3 nmi | 5.872697e-13 ly |
| 5 nmi | 9.787828e-13 ly |
| 10 nmi | 1.957566e-12 ly |
| 15 nmi | 2.936348e-12 ly |
| 20 nmi | 3.915131e-12 ly |
| 25 nmi | 4.893914e-12 ly |
| 50 nmi | 9.787828e-12 ly |
| 75 nmi | 1.468174e-11 ly |
| 100 nmi | 1.957566e-11 ly |
| 250 nmi | 4.893914e-11 ly |
| 500 nmi | 9.787828e-11 ly |
| 1,000 nmi | 1.957566e-10 ly |
The formula
ly = nmi ÷ 5,108,385,784,000Because both units measure length, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Light years to nautical miles →Related length conversions
- Millimeters to micrometers
- Centimeters to inches
- Centimeters to feet
- Meters to kilometers
- Kilometers to meters
- Inches to centimeters
- Feet to centimeters
- Feet to yards
- Yards to feet
- Micrometers to millimeters
- Millimeters to light years
- Centimeters to light years
Frequently asked questions
- How many light years are in a nautical mile?
- There are 1.957566e-13 light years in 1 nautical mile. The formula is ly = nmi ÷ 5,108,385,784,000.
- How do you convert nautical miles to light years?
- Use the formula ly = nmi ÷ 5,108,385,784,000. For example, 10 nautical miles equals 1.957566e-12 light years.
- Is the nautical miles to light years conversion exact?
- Yes. Nautical miles and light years are both units of length, related by an exact defined factor. Displayed results are rounded for readability.
- What is nmi short for?
- nmi is the standard symbol for nautical mile. ly is the symbol for light year.