One nautical mile equals exactly 1,852 meters. It is based on the Earth's circumference and equals one minute of latitude.
A knot is defined as one nautical mile per hour. This unit is directly tied to the nautical mile, making navigation calculations intuitive.
The great‑circle is the shortest path between two points on a sphere. A rhumb line (loxodrome) crosses all meridians at a constant angle.
The nautical mile is the cornerstone of maritime navigation. This tool provides real‑time conversions, speed/time/distance calculations, and great‑circle distance estimation using the Haversine formula.
1 nautical mile = 1.852 kilometers exactly.
Distance (nm) = Speed (knots) × Time (hours). The tool automatically handles minutes.
It calculates the great‑circle distance between two points on a sphere using their latitudes and longitudes.
All calculations run locally in your browser. No data is ever sent to a server.