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Convert nautical mile to kilometer

Here you can quickly calculate how many kilometer fit in one nautical mile.
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  • 1 = 1.852 km
  • 1 km = 0.539957

Example: nautical mile to kilometer

  • 1 nautical mile = 1.852 kilometer

Nautical mile to kilometer conversion table

nautical mile kilometer
1 1.852
2 3.704
5 9.26
10 18.52
20 37.04
50 92.6
100 185.2

Nautical mile to kilometer formula

To convert nautical mile to kilometer, multiply by 1.852.

1 = 1.852 km
Example: 1 nautical mile = 1.852 kilometer

Common length conversion mistakes

  • A nautical mile is 1,852 m, defined from one minute of arc along a meridian, while the statute mile is about 1,609 m. Sea and air distances always use nautical miles, so 100 NM is 185.2 km, roughly 15% longer than 100 statute miles. Check which mile a chart or spec is using before you convert.

Quick nautical mile and kilometer conversion quiz

Score: 0

20 kilometer equals 12.4 nautical mile.

Correct answer: 20 kilometer = 10.8 nautical mile.

128 kilometer equals 76 nautical mile.

Correct answer: 128 kilometer = 69.1 nautical mile.

13.6 kilometer equals 8.44 nautical mile.

Correct answer: 13.6 kilometer = 7.34 nautical mile.

7.8 kilometer equals 4.21 nautical mile.

Correct answer: 7.8 kilometer = 4.21 nautical mile.

21.4 kilometer equals 9.82 nautical mile.

Correct answer: 21.4 kilometer = 11.6 nautical mile.

More length conversions