How to convert nautical miles to kilometres
km = nmi × 1.852
Example: 5 nmi × 1.852 = 9.26 km
Nautical Miles to Kilometers table
| Nautical Miles (nmi) | Kilometers (km) |
|---|---|
| 0.5 nmi | 0.926 km |
| 1 nmi | 1.852 km |
| 2 nmi | 3.704 km |
| 3 nmi | 5.556 km |
| 4 nmi | 7.408 km |
| 5 nmi | 9.26 km |
| 6 nmi | 11.112 km |
| 7 nmi | 12.964 km |
| 8 nmi | 14.816 km |
| 9 nmi | 16.668 km |
| 10 nmi | 18.52 km |
| 15 nmi | 27.78 km |
| 20 nmi | 37.04 km |
| 25 nmi | 46.3 km |
| 30 nmi | 55.56 km |
| 40 nmi | 74.08 km |
| 50 nmi | 92.6 km |
| 75 nmi | 138.9 km |
| 100 nmi | 185.2 km |
| 250 nmi | 463 km |
| 500 nmi | 926 km |
| 1,000 nmi | 1,852 km |
About these units
Nautical Miles (nmi): A nautical mile is exactly 1,852 metres. It is used at sea and in aviation, and one knot is one nautical mile per hour.
Kilometers (km): A kilometre is 1,000 metres. Road distances and running races are measured in kilometres in most countries.
Frequently asked questions
How many kilometres are in 1 nautical mile?
1 nautical mile (nmi) equals 1.852 kilometres (km).
How do I convert nmi to km?
Multiply the value in nautical miles by 1.852. For example, 5 nmi × 1.852 = 9.26 km.
How do I convert kilometres back to nautical miles?
Multiply by 0.5399568035 (or divide by 1.852). 1 km = 0.5399568035 nmi.
What is a nautical mile?
A nautical mile is exactly 1,852 metres. It is used at sea and in aviation, and one knot is one nautical mile per hour.
Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every length unit at once? Use the Length Converter.