Convert nautical miles to kilometres
Enter a value in nautical miles (nmi) to get kilometres (km). One nautical mile is 1.852 kilometres; one kilometre is 0.539957 nautical miles.
How to use the Nautical mile to kilometre
- Type the number of nautical miles.
- Click Convert.
- Read the result in kilometres, plus the same value in every other length unit.
nmi to km formula
kilometres = nautical miles × 1.852. To go the other way, nautical miles = kilometres × 0.539957 (see kilometres to nautical miles).
Worked example
12 nmi × 1.852 = 22.224 km.
Nautical miles to kilometres conversion table
| Nautical miles | Kilometres |
|---|---|
| 0.1 nmi | 0.1852 km |
| 0.5 nmi | 0.926 km |
| 1 nmi | 1.852 km |
| 2 nmi | 3.704 km |
| 3 nmi | 5.556 km |
| 5 nmi | 9.26 km |
| 10 nmi | 18.52 km |
| 20 nmi | 37.04 km |
| 25 nmi | 46.3 km |
| 50 nmi | 92.6 km |
| 100 nmi | 185.2 km |
| 250 nmi | 463 km |
| 500 nmi | 926 km |
| 1,000 nmi | 1,852 km |
About the nautical mile
Exactly 1,852 m, about one minute of latitude. Used at sea and in aviation.
About the kilometre
One thousand metres; the unit for road distances and running events in most of the world.
Related conversions
Frequently asked questions
How many kilometres in a nautical mile?
1.852 kilometres.
How many nautical miles in a kilometre?
0.539957 nautical miles.
Is the factor exact?
The factor 1.852 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.