Nautical Miles to Kilometers Converter
1 nautical mile = 1.852 kilometers
1 nautical mile equals 1.852 kilometers
How to convert nautical miles to kilometers
Feet, inches, yards and miles use the international foot (0.3048 m). Older US survey-foot records use a different definition; check the survey document before applying these factors.
km = nmi × 1.852One nautical mile is 1.852 kilometers, so a single multiplication converts any value.
18.52 km = 10 × 1.852Nautical miles to kilometers conversion table
Common values in nautical miles, converted to kilometers.
| Nautical miles (nmi) | Kilometers (km) |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 4 | 7.408 |
| 5 | 9.26 |
| 10 | 18.52 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
| 250 | 463 |
| 500 | 926 |
| 1,000 | 1,852 |
About these units
nautical milenmi
Exactly 1,852 metres, approximately one minute of latitude. Used in marine and air navigation.
Reference: BIPM, non-SI units accepted for use with the SI.
kilometerkm
One thousand metres. The standard unit for road distance in most of the world.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.