Nautical miles to kilometres – convert nmi to km
Convert nautical miles to kilometres (nmi to km) for sailing routes, aviation planning, charts, and maps. This page links to the main length converter with nmi → km pre-selected.
Open the interactive nmi → km converter:
Use main converter (nmi → km) or switch to km → nmiOn the homepage you can also convert nautical miles to meters, feet, or miles using the same dropdowns and swap button.
Quick reference: nautical miles to kilometres
The converter uses the exact factor 1 nautical mile = 1.852 km. A few handy values:
| Nautical miles (nmi) | Kilometres (km) |
|---|---|
| 1 nmi | 1.85 km |
| 5 nmi | 9.26 km |
| 10 nmi | 18.52 km |
| 25 nmi | 46.30 km |
| 50 nmi | 92.60 km |
| 100 nmi | 185.20 km |
Why convert nautical miles to kilometres?
Common situations include:
- Translating marine charts (in nmi) to land distances in kilometres.
- Comparing sailing or cruising distances with road trip distances.
- Aviation route planning that mixes nautical miles and km-based maps.
- Studying geography or navigation where different units are used together.
More distance converters on this site
All length conversions on the homepage run through meters internally, so nmi, km, mi, ft and more stay consistent with each other.