Nautical miles to Kilometers Converter
Convert nautical miles to kilometers instantly. 1 nmi = 1.852 km. Free two-way converter with the formula and a quick reference table.
How to convert nautical miles to kilometers
kilometers = nautical miles × 1.852
One nautical mile equals 1.852 kilometers, so to convert nautical miles to kilometers you multiply by 1.852. Going the other way, one kilometer is 0.539957 nautical miles. Both units measure length, so the conversion is an exact ratio that never changes.
10 nautical miles = 18.52 kilometers. Multiply your nautical mile figure by the factor above (or just type it into the box) to convert any amount.
nautical miles to kilometers table
| nautical miles (nmi) | kilometers (km) |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 5 | 9.26 |
| 10 | 18.52 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
| 250 | 463 |
| 500 | 926 |
| 1,000 | 1,852 |
Frequently asked questions
How many kilometers are in a nautical mile?
One nautical mile equals 1.852 kilometers. So to convert, multiply the number of nautical miles by 1.852.
How do I convert nautical miles to kilometers?
Multiply by 1.852, or simply enter the value in the converter above — it does the math instantly and works both ways.
Is this conversion exact?
Yes — both units measure the same quantity, so the ratio is fixed and this uses the standard internationally-agreed factor.