Convert km to nmi instantly — formula, worked examples and a conversion table of common values.
Convert kilometres (km) to nautical miles (nmi). Enter a value on either side and the other updates instantly — nothing is sent to a server.
One kilometre equals 0.539957 nmi. The table below lists the values people look up most often, and each one links to a page with the worked calculation.
nmi = km ÷ 1.852| Kilometre (km) | Nautical mile (nmi) |
|---|---|
| 0.1 | 0.0539957 |
| 0.5 | 0.269978 |
| 1 | 0.539957 |
| 2 | 1.07991 |
| 3 | 1.61987 |
| 5 | 2.69978 |
| 10 | 5.39957 |
| 15 | 8.09935 |
| 20 | 10.7991 |
| 25 | 13.4989 |
| 50 | 26.9978 |
| 75 | 40.4968 |
| 100 | 53.9957 |
| 250 | 134.989 |
| 500 | 269.978 |
| 1,000 | 539.957 |
1 kilometre = 0.539957 nmi.
10 km = 5.3996 nmi.
100 km = 53.9957 nmi.
Use the formula nmi = km ÷ 1.852. Or type any value into the converter above — it works in both directions.