Miles to Nautical Miles
Convert mi to nmi quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 statute mile equals about 0.868976 nautical miles.
How to use the Miles to Nautical Miles
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 statute mile equals about 0.868976 nautical miles.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common mi to nmi conversions
| mi | nmi |
|---|---|
| 1 mi | 0.868976 nmi |
| 2 mi | 1.737952 nmi |
| 5 mi | 4.344881 nmi |
| 10 mi | 8.689762 nmi |
| 20 mi | 17.379525 nmi |
| 50 mi | 43.448812 nmi |
Example
For example, entering 1 mi gives approximately 0.868976 nmi using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.