Convert Nautical Mile to Kilometer
Use this free converter to change nautical miles (nmi) into kilometers (km). Nautical mile and kilometer both measure length. As a quick reference, 1 nmi equals 1.852 km, and 1 km equals 0.5399568 nmi.
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Kilometer (km)
1.852
1 nmi = 1.852 km
Length conversion table
| Nautical Mile | Kilometer |
|---|---|
| 0.01 | 0.01852 |
| 0.1 | 0.1852 |
| 0.5 | 0.926 |
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 5 | 9.26 |
| 10 | 18.52 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
| 1,000 | 1852 |
How to convert Nautical Mile to Kilometer
Multiply the nautical mile value by 1.852 to get kilometers.
- Enter the number of nautical miles you want to convert.
- The converter instantly shows the equivalent value in kilometers.
- Worked example: 15 nmi × 1.852 = 27.78 km.
- Use the swap button to reverse the conversion (kilometer to nautical mile).
About these units
Nautical Mile (nmi)
- Definition
- A nautical mile (nmi) equals exactly 1,852 meters and corresponds to one minute of latitude along a meridian.
- History
- It was defined by its relationship to the Earth’s circumference and standardised internationally in 1929.
- Current use
- Nautical miles are used in marine and air navigation; one knot equals one nautical mile per hour.
Kilometer (km)
- Definition
- A kilometer (km) is 1,000 meters and is the metric unit used for measuring longer distances such as roads and travel.
- History
- It entered use with the metric system in the 1790s, combining the SI prefix "kilo-" (thousand) with the meter.
- Current use
- Most of the world expresses road distances and speed limits in kilometers; the main exceptions are the United States and the United Kingdom, which still use miles.
Frequently asked questions
How many kilometers are in a nautical mile?
There are 1.852 km in 1 nmi. To convert, multiply the number of nautical miles by 1.852.
How do I convert nautical miles to kilometers?
Multiply the nautical mile value by 1.852 to get kilometers. For example, 10 nmi = 18.52 km.
Is this nautical mile-to-kilometer converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Nautical Mile to other length units
| Unit | 1 Nautical Mile equals |
|---|---|
| Meter (m) | 1852 m |
| Kilometer (km) | 1.852 km |
| Centimeter (cm) | 185200 cm |
| Millimeter (mm) | 1852000 mm |
| Micrometer (µm) | 1852000000 µm |
| Nanometer (nm) | 1.8520e+12 nm |
| Mile (mi) | 1.1507794 mi |
| Yard (yd) | 2025.3718 yd |
| Foot (ft) | 6076.1155 ft |
| Inch (in) | 72913.386 in |
| Light Year (ly) | 1.9576e-13 ly |