Nautical miles converter

Type a distance in nautical miles, miles or kilometers and see it in the other two.

Nautical miles

Miles

Kilometers

1 nautical mile = 1,852 m exactly = about 1.151 miles.

Nautical miles to miles and kilometers

Nautical miles	Miles	Kilometers
1 nm	1.2	1.9
5 nm	5.8	9.3
10 nm	11.5	18.5
25 nm	28.8	46.3
50 nm	57.5	92.6
100 nm	115.1	185.2
250 nm	287.7	463
500 nm	575.4	926
1,000 nm	1,150.8	1,852
2,500 nm	2,876.9	4,630
5,000 nm	5,753.9	9,260

Famous routes in nautical miles

Great-circle distances, the way pilots and flight plans measure them:

Route	Nautical miles	Miles	Kilometers
London – Paris	188	216	348
New York – Los Angeles	2,146	2,469	3,974
London – New York	2,991	3,442	5,540
Singapore – Sydney	3,398	3,911	6,293
Dubai – Los Angeles	7,236	8,327	13,400

Any pair of airports: the flight distance calculator gives all three units. For speeds, a knot is one nautical mile an hour; the knots converter handles those.

Questions

How long is a nautical mile?

Exactly 1,852 meters, about 1.151 statute miles or 6,076 feet. It was fixed at that length by international agreement in 1929; the United States adopted it in 1954.

Why is a nautical mile longer than a mile?

Because it comes from the Earth, not from feet and furlongs: it was originally one minute of latitude, a sixtieth of a degree. That makes it handy for navigation, since 60 nautical miles is one degree of latitude on any chart.

How do I convert nautical miles to miles?

Multiply by 1.15078. To go the other way, from miles to nautical miles, multiply by 0.86898.

How do I convert nautical miles to kilometers?

Multiply by 1.852, exactly. A kilometer is 0.54 nautical miles.

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