How to convert kilometers to nautical miles
Formula: nmi = km ÷ 1.852
Worked example: 5 km → 5 ÷ 1.852 = 2.69978 nmi
Kilometers to nautical miles conversion chart
| Kilometers (km) | Nautical miles (nmi) |
|---|---|
| 1 km | 0.539957 nmi |
| 2 km | 1.07991 nmi |
| 3 km | 1.61987 nmi |
| 4 km | 2.15983 nmi |
| 5 km | 2.69978 nmi |
| 6 km | 3.23974 nmi |
| 7 km | 3.7797 nmi |
| 8 km | 4.31965 nmi |
| 9 km | 4.85961 nmi |
| 10 km | 5.39957 nmi |
| 12 km | 6.47948 nmi |
| 15 km | 8.09935 nmi |
| 20 km | 10.7991 nmi |
| 25 km | 13.4989 nmi |
| 30 km | 16.1987 nmi |
| 40 km | 21.5983 nmi |
| 50 km | 26.9978 nmi |
| 75 km | 40.4968 nmi |
| 100 km | 53.9957 nmi |
| 250 km | 134.989 nmi |
| 500 km | 269.978 nmi |
| 1,000 km | 539.957 nmi |
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.
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.