Nautical Mile to Kilometer Converter
Convert Nautical Mile (nmi) to Kilometer (km) instantly. 1 nmi = 1.852 km.
Length Converter
31 units available
1 nmi = 1.852 km
Formula:
km = nmi × 1.852With your value: 1 nmi = 1.852 km
How big is that?
Everyday references on a logarithmic scale, all expressed in nautical mile so you can sanity-check the result.
Other Nautical Mile to Kilometer conversions
Nautical Mile to Kilometer Conversion Table
| Nautical Mile (nmi) | Kilometer (km) |
|---|---|
| 0.5 | 0.926 |
| 1 | 1.852 |
| 2 | 3.704 |
| 5 | 9.26 |
| 10 | 18.52 |
| 15 | 27.78 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
| 250 | 463 |
| 500 | 926 |
| 1000 | 1,852 |
Kilometer to Nautical Mile Conversion Table
| Kilometer (km) | Nautical Mile (nmi) |
|---|---|
| 0.5 | 0.269978 |
| 1 | 0.539957 |
| 2 | 1.079914 |
| 5 | 2.699784 |
| 10 | 5.399568 |
| 15 | 8.099352 |
| 20 | 10.799136 |
| 25 | 13.49892 |
| 50 | 26.99784 |
| 100 | 53.99568 |
| 250 | 134.989201 |
| 500 | 269.978402 |
| 1000 | 539.956803 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Nautical Mile (nmi)
Length
1 international nautical mile = 1852 m exactly, adopted by the First International Extraordinary Hydrographic Conference (1929).
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Kilometer (km)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Nautical Mile to Kilometer
To convert from Nautical Mile (nmi) to Kilometer (km), multiply the value by 1.852.
Formula: km = nmi × 1.852
Reverse: nmi = km × 0.5399568035
Step-by-Step Example
- Start with your value in Nautical Mile. For example: 5 nmi
- Multiply by the conversion factor: 5 x 1.852
- The result is: 9.26 km
About Nautical Mile
The nautical mile equals 1,852 meters and is used primarily in aviation and maritime navigation.
Fun Fact: One nautical mile corresponds to one minute of latitude on the Earth's surface.
Common uses: navigation, aviation, maritime.
About Kilometer
The kilometer equals 1,000 meters and is the standard unit for measuring distances between geographical locations in most countries.
Fun Fact: The circumference of Earth is approximately 40,075 km.
Common uses: road distances, geography, running.
Frequently Asked Questions
How many Kilometer are in 1 Nautical Mile?
There are exactly 1.852 Kilometer in 1 Nautical Mile. This means the conversion factor from Nautical Mile to Kilometer is 1.852.
What is the formula to convert Nautical Mile to Kilometer?
The formula to convert Nautical Mile to Kilometer is: km = nmi × 1.852. For example, to convert 10 Nautical Mile to Kilometer, you would multiply 10 by 1.852.
What is a Nautical Mile?
The nautical mile equals 1,852 meters and is used primarily in aviation and maritime navigation.
What is a Kilometer?
The kilometer equals 1,000 meters and is the standard unit for measuring distances between geographical locations in most countries.
What are the common uses of Nautical Mile?
The Nautical Mile is commonly used in navigation, aviation, maritime.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Nautical Mile to Kilometer converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/nautical_mile-to-kilometer