Kilometres to nautical miles converter
Nautical miles (nmi)
1 kilometre = 0.5399568035 nautical miles
How to convert kilometres to nautical miles
nmi = km × 0.539956803456
Multiply the number of kilometres by 0.539956803456 to get nautical miles. Going the other way, divide by 0.539956803456 (or multiply by 1.852).
One kilometre is exactly defined as 0.539956803456 nautical miles (to 12 significant figures), and one nautical mile is 1.852 kilometres.
Worked examples
- Convert 5 kilometres: 5 × 0.539956803456 = 2.699784017 2.699784017 nautical miles.
- Convert 12.5 kilometres: 12.5 × 0.539956803456 = 6.749460043 6.749460043 nautical miles.
- Convert 250 kilometres: 250 × 0.539956803456 = 134.9892009 134.9892009 nautical miles.
Quick-reference table
| km | nmi |
|---|---|
| 1 | 0.5399568035 |
| 2 | 1.079913607 |
| 3 | 1.61987041 |
| 5 | 2.699784017 |
| 10 | 5.399568035 |
| 15 | 8.099352052 |
| 20 | 10.79913607 |
| 25 | 13.49892009 |
| 50 | 26.99784017 |
| 75 | 40.49676026 |
| 100 | 53.99568035 |
| 1,000 | 539.9568035 |
| nmi | km |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 5 | 9.26 |
| 10 | 18.52 |
| 15 | 27.78 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 75 | 138.9 |
| 100 | 185.2 |
| 1,000 | 1,852 |
Related conversions
Frequently asked questions
How many nautical miles are in 1 kilometre?
1 kilometre equals 0.5399568035 nautical miles.
What is the formula to convert kilometres to nautical miles?
Use nmi = km × 0.539956803456. Multiply the number of kilometres by 0.539956803456 to get nautical miles. Going the other way, divide by 0.539956803456 (or multiply by 1.852).
What is 100 kilometres in nautical miles?
100 kilometres is 53.99568035 nautical miles.