Online calculator to convert kilometers to nautical miles (km to nmi) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Length or Distance units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert km to nautical miles
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between kilometers and nautical miles.
What is a kilometer (km)?
A kilometer is a unit of Length or Distance in the Metric System. The symbol for kilometer is km. There are 1.852 kilometers in a nautical mile. The International spelling for this unit is kilometre.
What is a nautical mile (M, NM, or nmi)?
A nautical mile is a non-SI unit of Length or Distance. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. It is approximately one minute of arc measured along any meridian. The symbol for nautical mile is M or NM or nmi. There are 0.5399568 nautical miles in a kilometer.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from km to nautical miles is:
nautical miles = km ÷ 1.852
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from kilometers to nautical miles (km to nmi).
Kilometer to Nautical Mile Conversion Example
Task: Convert 25 kilometers to nautical miles (show work) Formula: km ÷ 1.852 = nautical miles Calculations: 25 km ÷ 1.852 = 13.49892009 nautical miles Result: 25 km is equal to 13.49892009 nautical miles
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from km to nautical miles.
Kilometers to Nautical Miles Conversion Chart
| kilometers (km) | nautical miles (nmi) |
|---|---|
| 1 km | 0.5399568 nmi |
| 2 km | 1.07991361 nmi |
| 3 km | 1.61987041 nmi |
| 4 km | 2.15982721 nmi |
| 5 km | 2.69978402 nmi |
| 6 km | 3.23974082 nmi |
| 7 km | 3.77969762 nmi |
| 8 km | 4.31965443 nmi |
| 9 km | 4.85961123 nmi |
| 10 km | 5.39956803 nmi |
| 20 km | 10.79913607 nmi |
| 30 km | 16.1987041 nmi |
| 40 km | 21.59827214 nmi |
| 50 km | 26.99784017 nmi |
| 75 km | 40.49676026 nmi |
| 100 km | 53.99568035 nmi |
| 250 km | 134.98920086 nmi |
| 500 km | 269.97840173 nmi |
| 750 km | 404.96760259 nmi |
| 1,000 km | 539.95680346 nmi |
| 2,500 km | 1,349.89200864 nmi |
| 5,000 km | 2,699.78401728 nmi |
| 7,500 km | 4,049.67602592 nmi |
| 10,000 km | 5,399.56803456 nmi |
| 25,000 km | 13,498.92008639 nmi |
| 50,000 km | 26,997.84017279 nmi |
| 75,000 km | 40,496.76025918 nmi |
| 100,000 km | 53,995.68034557 nmi |
| 250,000 km | 134,989.20086393 nmi |
Related Units
This table provides a summary of the Length or Distance units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| inches | in or " | US Customary Units/Imperial System |
| feet | ft or ' | US Customary Units/Imperial System |
| yards | yd | US Customary Units/Imperial System |
| miles | mi | US Customary Units/Imperial System |
| picometers | pm | Metric System |
| nanometers | nm | Metric System |
| micrometers | μm | Metric System |
| millimeters | mm | Metric System |
| centimeters | cm | Metric System |
| decimeters | dm | Metric System |
| meters | m | Metric System |
| decameters | dam or dkm | Metric System |
| hectometers | hm | Metric System |
| kilometers | km | Metric System |
| megameters | Mm | Metric System |
| gigameters | Gm | Metric System |
| nautical miles | M or NM or nmi | Non-SI (International) |
| angstroms | Å | Non-SI (International) |
| rods | rod | Non-SI (International) |
Note: For Length and Distance conversions, US Customary Units and the Imperial System are equivalent.
Advertisements