Nautical Miles to Kilometers Converter
This free length converter changes nautical miles (nmi) into kilometers (km) and back again. The relationship is exact: a nautical mile is defined as 1852 metres, so 1 nmi = 1.852 km, and 10 nmi equals 18.52 km.
Type a value in either field — the result updates in real time. The reference table below shows common conversion values at a glance. All calculations run entirely in your browser with no data sent to any server.
| Nautical Miles (nmi) | Kilometers (km) |
|---|---|
| 1 nmi | 1.852 km |
| 5 nmi | 9.26 km |
| 10 nmi | 18.52 km |
| 100 nmi | 185.2 km |