How to convert nautical miles to kilometers
Formula: km = nmi × 1.852
Worked example: 10 nmi → 10 × 1.852 = 18.52 km
Nautical miles to kilometers conversion chart
| Nautical miles (nmi) | Kilometers (km) |
|---|---|
| 1 nmi | 1.852 km |
| 2 nmi | 3.704 km |
| 3 nmi | 5.556 km |
| 4 nmi | 7.408 km |
| 5 nmi | 9.26 km |
| 6 nmi | 11.112 km |
| 7 nmi | 12.964 km |
| 8 nmi | 14.816 km |
| 9 nmi | 16.668 km |
| 10 nmi | 18.52 km |
| 12 nmi | 22.224 km |
| 15 nmi | 27.78 km |
| 20 nmi | 37.04 km |
| 25 nmi | 46.3 km |
| 30 nmi | 55.56 km |
| 40 nmi | 74.08 km |
| 50 nmi | 92.6 km |
| 75 nmi | 138.9 km |
| 100 nmi | 185.2 km |
| 250 nmi | 463 km |
| 500 nmi | 926 km |
| 1,000 nmi | 1,852 km |
What is a nautical mile?
The nautical mile is exactly 1,852 meters, close to one minute of latitude on the Earth's surface, which makes chart work easy. Ships and aircraft navigate in nautical miles, and one nautical mile per hour is a knot.
What is a kilometer?
The kilometer equals 1,000 meters. Most countries use it for road distances and speed limits in km/h, and runners know it from the 5K, 10K and the 42.195 km marathon. One kilometer is about 0.62 mile.