Convert Kilometre to Nautical mile
Turn Kilometres into Nautical miles in an instant. Type a value below to get an accurate km → nmi result, with the formula and a quick-reference table.
1 km = 0.5399568 nmi
Quick answer: 1 Kilometre = 0.5399568 Nautical mile
Kilometre to Nautical mile conversion table
| Kilometre (km) | Nautical mile (nmi) |
|---|---|
| 1 km | 0.5399568 nmi |
| 2 km | 1.0799136 nmi |
| 5 km | 2.699784 nmi |
| 10 km | 5.399568 nmi |
| 20 km | 10.799136 nmi |
| 50 km | 26.99784 nmi |
| 100 km | 53.99568 nmi |
| 500 km | 269.9784 nmi |
| 1,000 km | 539.9568 nmi |
How to convert Kilometre to Nautical mile
To convert Kilometres to Nautical miles, multiply the value by 0.5399568.
- Take your measurement in Kilometres.
- Multiply it by 0.5399568 — the number of Nautical miles in one Kilometre.
- The result is the same amount, expressed in Nautical miles.
To go the other way, multiply Nautical miles by 1.852 — or simply divide by 0.5399568.
For example, a 5K race is about 5 km, which is 2.699784 nmi.
About Kilometre and Nautical mile
A kilometre is 1,000 metres, the standard metric unit for longer distances. It is used for road distances, running races and geography almost everywhere outside the United States and the United Kingdom.
A nautical mile is 1,852 metres, originally defined as one minute of latitude along a meridian. It is used in sea and air navigation; a speed of one nautical mile per hour is called a knot.
The Kilometre is a metric unit while the Nautical mile comes from the nautical system — which is exactly why this conversion comes up so often. One Kilometre equals 0.5399568 Nautical miles.
Other length conversions
Frequently asked questions
How many Nautical miles are in a Kilometre?
1 Kilometre equals 0.5399568 Nautical mile (km → nmi). To convert any amount, multiply the number of Kilometres by 0.5399568.
How do I convert Kilometre to Nautical mile?
Enter the number of Kilometres in the converter above and read the result in Nautical miles. It applies the exact km → nmi factor instantly, with full precision.
Is the Kilometre to Nautical mile converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined length factors and full floating-point precision, then rounds the display to a clean, readable number.