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Length converter

Miles to Nautical Miles (mi to nmi)

Type in either box: it converts both ways, accepts sums like 12*3, and shows every other length unit too.

1 mi = 0.8689762419 nmi. To convert miles to nautical miles, multiply the value in miles by 0.868976241901.

How to convert miles to nautical miles

To convert miles (mi) to nautical miles (nmi), multiply the value in miles by 0.868976241901.

nmi = mi × 0.868976241901

Example: 5 mi = 4.34488121 nmi.

You can also type 5 mi to nmi into the smart calculator, or mix units: 1 mi + 1 nmi.

Miles to Nautical Miles conversion table

Miles to Nautical Miles
MilesNautical Miles
0.01 mi0.0086897624 nmi
0.1 mi0.086897624 nmi
0.25 mi0.21724406 nmi
0.5 mi0.43448812 nmi
1 mi0.86897624 nmi
2 mi1.7379525 nmi
3 mi2.6069287 nmi
4 mi3.475905 nmi
5 mi4.3448812 nmi
6 mi5.2138575 nmi
7 mi6.0828337 nmi
8 mi6.9518099 nmi
9 mi7.8207862 nmi
10 mi8.6897624 nmi
12 mi10.427715 nmi
15 mi13.034644 nmi
20 mi17.379525 nmi
25 mi21.724406 nmi
30 mi26.069287 nmi
40 mi34.75905 nmi
50 mi43.448812 nmi
60 mi52.138575 nmi
75 mi65.173218 nmi
100 mi86.897624 nmi
250 mi217.24406 nmi
500 mi434.48812 nmi
1,000 mi868.97624 nmi

Converting nautical miles back to miles

1 nmi = 1.150779448 mi. See the Nautical Miles to Miles converter, or press the swap button above.

About the units

Mile (mi)

Exactly 1,609.344 meters, or 5,280 feet.

Nautical mile (nmi)

Exactly 1,852 meters. Used in air and sea navigation; one knot is one nautical mile per hour.

Length measures distance in one dimension. The SI base unit is the meter, defined by the distance light travels in a vacuum in 1/299,792,458 of a second. Since the 1959 international yard and pound agreement, imperial and US customary lengths are defined exactly in meters: an inch is exactly 2.54 centimeters.

Questions and answers

How many nautical miles are in a mile?

One mile (mi) equals 0.8689762419 nautical miles (nmi).

How do I convert miles to nautical miles?

To convert miles to nautical miles, multiply the value in miles by 0.868976241901. The formula is nmi = mi × 0.868976241901. For example, 5 mi = 4.3448812 nmi.

What is 5 mi in nmi?

5 miles is 4.34488121 nautical miles.

Which is bigger, a mile or a nautical mile?

A nautical mile is bigger: 1 nmi = 1.150779448 mi.

How many centimeters are in a foot?

A foot is exactly 30.48 centimeters, because an inch is defined as exactly 2.54 cm and a foot is 12 inches.

Does this mi to nmi converter work offline?

Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.