Convert kilometers to nautical miles
1 km = 0.5399568 nmi. Change the amount below, or read the formula and the reference table further down.
1 kilometer equals
nautical miles
1 km = 0.5399568 nmi
The formula
Kilometers and nautical miles both measure length from the same zero, so a single multiplier does the job.
nmi = km × 0.5399568035
Going the other way? Convert nautical miles to kilometers.
Kilometers to nautical miles table
Common values, rounded for reading.
| Kilometers (km) | Nautical miles (nmi) |
|---|---|
| 1 | 0.539957 |
| 2 | 1.0799 |
| 3 | 1.6199 |
| 4 | 2.1598 |
| 5 | 2.6998 |
| 6 | 3.2397 |
| 7 | 3.7797 |
| 8 | 4.3197 |
| 9 | 4.8596 |
| 10 | 5.3996 |
| 15 | 8.0994 |
| 20 | 10.7991 |
| 25 | 13.4989 |
| 30 | 16.1987 |
| 40 | 21.5983 |
| 50 | 26.9978 |
| 75 | 40.4968 |
| 100 | 53.9957 |
| 250 | 134.99 |
| 500 | 269.98 |
| 1,000 | 539.96 |
Questions people ask
- How many nautical miles are in a kilometer?
- One kilometer equals 0.5399568035 nautical miles.
- How do I convert kilometers to nautical miles by hand?
- Multiply the number of kilometers by 0.5399568035. For a rough check, 0.54 is close enough for most everyday use.
- What is 1 kilometer in nautical miles?
- 1 kilometer is 0.5399568 nautical miles.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.