Nautical miles to kilometres converter
Kilometres (km)
1 nautical mile = 1.852 kilometres
How to convert nautical miles to kilometres
km = nmi × 1.852
Multiply the number of nautical miles by 1.852 to get kilometres. Going the other way, divide by 1.852 (or multiply by 0.539956803456).
One nautical mile is exactly defined as 1.852 kilometres (to 12 significant figures), and one kilometre is 0.539956803456 nautical miles.
Worked examples
- Convert 5 nautical miles: 5 × 1.852 = 9.26 9.26 kilometres.
- Convert 12.5 nautical miles: 12.5 × 1.852 = 23.15 23.15 kilometres.
- Convert 250 nautical miles: 250 × 1.852 = 463 463 kilometres.
Quick-reference table
| 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 |
| 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 |
Related conversions
Frequently asked questions
How many kilometres are in 1 nautical mile?
1 nautical mile equals 1.852 kilometres.
What is the formula to convert nautical miles to kilometres?
Use km = nmi × 1.852. Multiply the number of nautical miles by 1.852 to get kilometres. Going the other way, divide by 1.852 (or multiply by 0.539956803456).
What is 100 nautical miles in kilometres?
100 nautical miles is 185.2 kilometres.