Kilometres to Nautical Miles Converter
Type a value in kilometres to see it in nautical miles. It works both ways: type in the nautical miles box to convert back.
Formula
To convert kilometres to nautical miles, divide by 1.852 (the same as multiplying by 0.5399568035).
1 km = 0.539956803456 nmi and 1 nmi = 1.852 km.
Kilometres to nautical miles table
| Kilometres | Nautical miles |
|---|---|
| 1 km | 0.5399568 nmi |
| 2 km | 1.079914 nmi |
| 3 km | 1.61987 nmi |
| 5 km | 2.699784 nmi |
| 10 km | 5.399568 nmi |
| 15 km | 8.099352 nmi |
| 21.1 km | 11.39309 nmi |
| 42.2 km | 22.78618 nmi |
| 50 km | 26.99784 nmi |
| 100 km | 53.99568 nmi |
| 200 km | 107.9914 nmi |
| 500 km | 269.9784 nmi |
Worked examples
2 km in nautical miles
2 km
1.079914 nmi
2 × 0.5399568035 = 1.079913607
21.1 km in nautical miles
21.1 km
11.39309 nmi
21.1 × 0.5399568035 = 11.39308855
200 km in nautical miles
200 km
107.9914 nmi
200 × 0.5399568035 = 107.9913607
About Kilometres to Nautical Miles Converter
This converter turns kilometres into nautical miles as you type, and works the other way too: type in the nautical miles box to convert back. To convert kilometres to nautical miles, divide by 1.852 (the same as multiplying by 0.5399568035). For example, 2 km is 1.079914 nmi, and 21.1 km is 11.39309 nmi.
The UK uses metric units for most measurements, but road signs are in miles and yards, and many people still think of height in feet and inches, so length conversions come up every day. Both units have exact definitions, so the converter gives an exact result, rounded only for display. Use the table below for common values, or set the decimal places to round the answer for a form or a label.
How to use Kilometres to Nautical Miles Converter
- Type the amount in kilometres in the first box.
- Read the answer in nautical miles in the second box and in the result line below.
- To convert the other way, type in the nautical miles box instead, or use the swap button to open the nautical miles to kilometres page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Following plans, patterns or instructions from abroad
- Converting a height or a distance for a form
- Helping with homework that mixes metric and imperial units
- Comparing running or cycling distances
Frequently asked questions
How many nautical miles are in one kilometre?
There are 0.5399568035 nautical miles in one kilometre. This figure is exact, because both units have fixed definitions.
How do I convert kilometres to nautical miles?
To convert kilometres to nautical miles, divide by 1.852 (the same as multiplying by 0.5399568035). For example, 200 km is 107.9914 nmi.
How do I convert nautical miles to kilometres?
Going the other way, multiply by 1.852. The nautical miles to kilometres converter does this for you.
What is 50 km in nautical miles?
50 km is 26.99784 nmi.
Why does the UK still use miles?
Road distances and speed limits stayed in miles and yards when the UK moved to metric units for trade and science. The Weights and Measures Act allows miles, yards, feet and inches for road traffic signs, so you will meet both systems.