Sumwise

Miles to nautical miles

nautical miles = miles × 0.86897624

Reverse: nautical miles to miles

How to convert miles to nautical miles

One mile is 0.86897624 nautical miles, so multiply the number of miles by 0.86897624. For example, 20 miles is 20 × 0.86897624 = 17.379525 nautical miles. To go back, divide by the same number, or multiply by 1.150779.

Quick estimate

Multiplying by about 0.9 gets within 3.6% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Length conversions come up in DIY and building plans, running and cycling distances, maps, clothing sizes and travel between countries that use metric and imperial units.

milesnautical miles
1 mi0.86897624 nmi
2 mi1.737952 nmi
3 mi2.606929 nmi
4 mi3.475905 nmi
5 mi4.344881 nmi
6 mi5.213857 nmi
7 mi6.082834 nmi
8 mi6.95181 nmi
9 mi7.820786 nmi
10 mi8.689762 nmi
11 mi9.558739 nmi
12 mi10.427715 nmi
13 mi11.296691 nmi
14 mi12.165667 nmi
15 mi13.034644 nmi
16 mi13.90362 nmi
17 mi14.772596 nmi
18 mi15.641572 nmi
19 mi16.510549 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
70 mi60.828337 nmi
75 mi65.173218 nmi
80 mi69.518099 nmi
90 mi78.207862 nmi
100 mi86.897624 nmi
120 mi104.277149 nmi
150 mi130.346436 nmi
200 mi173.795248 nmi
250 mi217.24406 nmi
300 mi260.692873 nmi
400 mi347.590497 nmi
500 mi434.488121 nmi
750 mi651.732181 nmi
1,000 mi868.976242 nmi
1,500 mi1,303.46 nmi
2,000 mi1,737.95 nmi
5,000 mi4,344.88 nmi
10,000 mi8,689.76 nmi

Questions

How many nautical miles are in a mile?

0.86897624 nautical miles.

How do I convert miles to nautical miles in a spreadsheet?

Put the value in A1 and type =A1*0.86897624, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.