Nautical miles to miles
1 nautical mile = 1.15078 miles
Type a value in nautical miles (nmi) to get miles (mi) straight away. A nautical mile is larger than a mile, so the number goes up. Both units belong to length, measured here against the meter.
1 nmi = 1.1507794 mi
Formula
mi = nmi × 1.1507794
One nautical mile is 1.1507794 miles, so multiply the nautical mile value by that factor. Here nmi is the value in nautical miles and mi is the result in miles.
Worked example: 10 nautical miles × 1.1507794 = 11.5078 miles.
Nautical miles to miles table
| nautical miles (nmi) | miles (mi) |
|---|---|
| 1 nmi | 1.15078 mi |
| 2 nmi | 2.30156 mi |
| 3 nmi | 3.45234 mi |
| 4 nmi | 4.60312 mi |
| 5 nmi | 5.7539 mi |
| 6 nmi | 6.90468 mi |
| 7 nmi | 8.05546 mi |
| 8 nmi | 9.20624 mi |
| 9 nmi | 10.357 mi |
| 10 nmi | 11.5078 mi |
| 15 nmi | 17.2617 mi |
| 20 nmi | 23.0156 mi |
| 25 nmi | 28.7695 mi |
| 30 nmi | 34.5234 mi |
| 40 nmi | 46.0312 mi |
| 50 nmi | 57.539 mi |
| 60 nmi | 69.0468 mi |
| 75 nmi | 86.3085 mi |
| 100 nmi | 115.078 mi |
Everyday nautical miles in miles
| What it is | nmi | mi |
|---|---|---|
| one minute of latitude | 1 nmi | 1.15078 mi |
| a common near-coast limit | 3 nmi | 3.45234 mi |
| the territorial sea limit | 12 nmi | 13.8094 mi |
| the contiguous zone limit | 24 nmi | 27.6187 mi |
| an exclusive economic zone | 200 nmi | 230.156 mi |
Quick estimate in your head
Multiply by about 1.2. For 10 nmi that gives 12 mi against an exact 11.5078 mi, an error of 4.3%.
Watch out for
- A nautical mile (1,852 m) is about 15% longer than a statute mile (1,609 m).
About the units
Nautical mile (nmi). Exactly 1,852 m, about one minute of latitude. Used in sea and air navigation.
Mile (mi). The statute mile: 5,280 feet or exactly 1,609.344 m. Used for road distances in the US and UK.
Going the other way, 1 mile is 0.868976 nautical miles.
Questions
How many miles are in 1 nautical mile?
1 nautical mile is 1.15078 miles, and 1 mile is 0.868976 nautical miles.
How do I convert nautical miles to miles?
Use mi = nmi × 1.1507794. For example, 10 nautical miles × 1.1507794 = 11.5078 miles.
Is the nautical mile to mile factor exact?
Yes, the definitions are exact, so the factor is exact. Results here are rounded to 6 significant digits for display.
How much is an exclusive economic zone in miles?
200 nmi is 230.156 mi.
Source for the conversion factor: NIST SP 811, Appendix B (conversion factors).
Related conversions
- miles to nautical miles
- kilometers to miles
- miles to kilometers
- miles to feet
- feet to miles
- nautical miles to kilometers