How to convert kilometres to nautical miles
nmi = km × 0.5399568035
Example: 5 km × 0.5399568035 = 2.699784017 nmi
Kilometers to Nautical Miles table
| Kilometers (km) | Nautical Miles (nmi) |
|---|---|
| 0.5 km | 0.2699784 nmi |
| 1 km | 0.5399568 nmi |
| 2 km | 1.0799136 nmi |
| 3 km | 1.6198704 nmi |
| 4 km | 2.1598272 nmi |
| 5 km | 2.699784 nmi |
| 6 km | 3.2397408 nmi |
| 7 km | 3.7796976 nmi |
| 8 km | 4.3196544 nmi |
| 9 km | 4.8596112 nmi |
| 10 km | 5.399568 nmi |
| 15 km | 8.0993521 nmi |
| 20 km | 10.799136 nmi |
| 25 km | 13.49892 nmi |
| 30 km | 16.198704 nmi |
| 40 km | 21.598272 nmi |
| 50 km | 26.99784 nmi |
| 75 km | 40.49676 nmi |
| 100 km | 53.99568 nmi |
| 250 km | 134.9892 nmi |
| 500 km | 269.9784 nmi |
| 1,000 km | 539.9568 nmi |
About these units
Kilometers (km): A kilometre is 1,000 metres. Road distances and running races are measured in kilometres in most countries.
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.
Frequently asked questions
How many nautical miles are in 1 kilometre?
1 kilometre (km) equals 0.5399568035 nautical miles (nmi).
How do I convert km to nmi?
Multiply the value in kilometres by 0.5399568035. For example, 5 km × 0.5399568035 = 2.699784017 nmi.
How do I convert nautical miles back to kilometres?
Multiply by 1.852 (or divide by 0.5399568035). 1 nmi = 1.852 km.
What is a kilometre?
A kilometre is 1,000 metres. Road distances and running races are measured in kilometres in most countries.
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.