How do you convert miles to nautical miles?

To convert miles to nautical miles, multiply by 0.8689762419. For example, 40 mi is 34.75905 nmi.

How many nautical miles are in a mile?

There are 0.8689762419 nautical miles in one mile.

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Converters · Length

40 Miles to Nautical miles

40 mi =

34.75905 nmi

40 miles equals 34.75905 nautical miles

How to convert miles to nautical miles

To get nautical miles, multiply by 0.8689762419.

nmi = mi × 0.8689762419

Worked example: 40 × 0.8689762419 = 34.75905 nmi.

Going the other way, multiply by 1.150779448 — one nautical mile is 1.150779448 miles.

Values near 40 mi

Mile	Nautical mile
20 mi	17.379525 nmi
38 mi	33.021097 nmi
39 mi	33.890073 nmi
41 mi	35.628026 nmi
42 mi	36.497002 nmi
80 mi	69.518099 nmi

Mile to Nautical mile — common values

Mile	Nautical mile
1 mi	0.868976 nmi
2 mi	1.737952 nmi
3 mi	2.606929 nmi
5 mi	4.344881 nmi
10 mi	8.689762 nmi
25 mi	21.724406 nmi
50 mi	43.448812 nmi
100 mi	86.897624 nmi

Convert Mile to other units

mi → m mi → km mi → cm mi → mm mi → yd mi → ft mi → in mi → nmi

← Reverse: Nautical mile to Mile

Questions

How do you convert miles to nautical miles?: To convert miles to nautical miles, multiply by 0.8689762419. For example, 40 mi is 34.75905 nmi.
How many nautical miles are in a mile?: There are 0.8689762419 nautical miles in one mile.
How do you convert nautical miles back to miles?: Go the other way: multiply by 1.150779448. One nautical mile is 1.150779448 miles.

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