Nautical Miles to Kilometers

Translate marine and aviation distances

Nautical miles are used in marine and aviation navigation because they relate naturally to geographic coordinates. Kilometers are more familiar for metric land distances. This converter connects those two distance units directly and avoids confusing nautical miles with statute miles or knots.

With the default input, 10 nautical miles converts to exactly 18.52 kilometers. In reverse, 1 kilometer converts to 0.539957 nautical miles after six-significant-figure rounding. The international nautical mile is fixed at exactly 1,852 meters, so the conversion requires no regional setting or current data.

Private navigation-unit conversion

Distances entered into the tool stay in your browser and are not sent to a charting or tracking service. The result is a unit conversion, not navigational advice. It does not account for route geometry, currents, airspace, safety margins, or chart datum, all of which require appropriate planning tools.