Miles (mi) to Nautical Miles (nmi) Converter

This length unit converter dynamically calculates the value you enter in miles (mi) and converts it to its equivalent value in nautical miles (nmi).

How many miles (mi) are in 1 nautical mile (nmi)? What is the formula for how to convert miles to nautical miles (mi to nmi)?

1 mile (mi) = 0.86897624190065 nautical mile (nmi)
So we can say that there is 0.86897624190065 nautical mile in 1 mile.
This means that the multiplication conversion factor to convert a quantity expressed in a mile unit of measurement to an equivalent quantity expressed in a nautical mile unit of measurement is 0.86897624190065.

Inversely (or reciprocally),

1 nautical mile (nmi) = 1.1507794480235 miles (mi)
So we can say that there is 1.1507794480235 miles in 1 nautical mile.
This means that the division conversion factor to convert a quantity expressed in a mile unit of measurement to an equivalent quantity expressed in a nautical mile unit of measurement is 1.1507794480235.

Knowing this inverse mathematical relationship between the two conversion factors and their reciprocal operations, we can derive two formulas to calculate and convert a quantity of length expressed in miles to an equivalent quantity of length expressed in nautical miles (mi to nmi). Both formulas will yield the same result. The formulas are:

nmi = mi ร— 0.86897624190065 ย  ย โ†’ This is the formula based on the multiplication conversion factor.

and

nmi = mi รท 1.1507794480235 ย  ย โ†’ This is the formula based on the division conversion factor.

For example, if you have a length of 450 miles that you want to convert to nautical miles, you would use either of the two formulas as follows:

nmi = 450 mi ร— 0.86897624190065 = 391.039308855 nmi
nmi = 450 mi รท 1.1507794480235 = 391.039308855 nmi

So, the result is the same using either formula, which is 391.039308855 nautical miles.

Miles to nautical miles (mi to nmi) conversion chart

To save you time and effort spent on having to perform manual calculations or look up conversion formulas every time a conversion from miles to nautical-miles is needed, here is a miles-to-nautical-miles conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in miles and their equivalent measurement values in nautical-miles. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

miles (mi)nautical miles (nmi)
1 mi0.87 nmi
2 mi1.74 nmi
3 mi2.61 nmi
4 mi3.48 nmi
5 mi4.34 nmi
6 mi5.21 nmi
7 mi6.08 nmi
8 mi6.95 nmi
9 mi7.82 nmi
10 mi8.69 nmi
11 mi9.56 nmi
12 mi10.43 nmi
13 mi11.30 nmi
14 mi12.17 nmi
15 mi13.03 nmi
16 mi13.90 nmi
17 mi14.77 nmi
18 mi15.64 nmi
19 mi16.51 nmi
20 mi17.38 nmi
21 mi18.25 nmi
22 mi19.12 nmi
23 mi19.99 nmi
24 mi20.86 nmi
25 mi21.72 nmi
26 mi22.59 nmi
27 mi23.46 nmi
28 mi24.33 nmi
29 mi25.20 nmi
30 mi26.07 nmi
31 mi26.94 nmi
32 mi27.81 nmi
33 mi28.68 nmi
34 mi29.55 nmi
35 mi30.41 nmi
36 mi31.28 nmi
37 mi32.15 nmi
38 mi33.02 nmi
39 mi33.89 nmi
40 mi34.76 nmi
41 mi35.63 nmi
42 mi36.50 nmi
43 mi37.37 nmi
44 mi38.23 nmi
45 mi39.10 nmi
46 mi39.97 nmi
47 mi40.84 nmi
48 mi41.71 nmi
49 mi42.58 nmi
50 mi43.45 nmi
51 mi44.32 nmi
52 mi45.19 nmi
53 mi46.06 nmi
54 mi46.92 nmi
55 mi47.79 nmi
56 mi48.66 nmi
57 mi49.53 nmi
58 mi50.40 nmi
59 mi51.27 nmi
60 mi52.14 nmi
61 mi53.01 nmi
62 mi53.88 nmi
63 mi54.75 nmi
64 mi55.61 nmi
65 mi56.48 nmi
66 mi57.35 nmi
67 mi58.22 nmi
68 mi59.09 nmi
69 mi59.96 nmi
70 mi60.83 nmi
71 mi61.70 nmi
72 mi62.57 nmi
73 mi63.44 nmi
74 mi64.30 nmi
75 mi65.17 nmi
76 mi66.04 nmi
77 mi66.91 nmi
78 mi67.78 nmi
79 mi68.65 nmi
80 mi69.52 nmi
81 mi70.39 nmi
82 mi71.26 nmi
83 mi72.13 nmi
84 mi72.99 nmi
85 mi73.86 nmi
86 mi74.73 nmi
87 mi75.60 nmi
88 mi76.47 nmi
89 mi77.34 nmi
90 mi78.21 nmi
91 mi79.08 nmi
92 mi79.95 nmi
93 mi80.81 nmi
94 mi81.68 nmi
95 mi82.55 nmi
96 mi83.42 nmi
97 mi84.29 nmi
98 mi85.16 nmi
99 mi86.03 nmi
100 mi86.90 nmi
miles (mi)nautical miles (nmi)
101 mi87.77 nmi
102 mi88.64 nmi
103 mi89.50 nmi
104 mi90.37 nmi
105 mi91.24 nmi
106 mi92.11 nmi
107 mi92.98 nmi
108 mi93.85 nmi
109 mi94.72 nmi
110 mi95.59 nmi
111 mi96.46 nmi
112 mi97.33 nmi
113 mi98.19 nmi
114 mi99.06 nmi
115 mi99.93 nmi
116 mi100.80 nmi
117 mi101.67 nmi
118 mi102.54 nmi
119 mi103.41 nmi
120 mi104.28 nmi
121 mi105.15 nmi
122 mi106.02 nmi
123 mi106.88 nmi
124 mi107.75 nmi
125 mi108.62 nmi
126 mi109.49 nmi
127 mi110.36 nmi
128 mi111.23 nmi
129 mi112.10 nmi
130 mi112.97 nmi
131 mi113.84 nmi
132 mi114.70 nmi
133 mi115.57 nmi
134 mi116.44 nmi
135 mi117.31 nmi
136 mi118.18 nmi
137 mi119.05 nmi
138 mi119.92 nmi
139 mi120.79 nmi
140 mi121.66 nmi
141 mi122.53 nmi
142 mi123.39 nmi
143 mi124.26 nmi
144 mi125.13 nmi
145 mi126.00 nmi
146 mi126.87 nmi
147 mi127.74 nmi
148 mi128.61 nmi
149 mi129.48 nmi
150 mi130.35 nmi
151 mi131.22 nmi
152 mi132.08 nmi
153 mi132.95 nmi
154 mi133.82 nmi
155 mi134.69 nmi
156 mi135.56 nmi
157 mi136.43 nmi
158 mi137.30 nmi
159 mi138.17 nmi
160 mi139.04 nmi
161 mi139.91 nmi
162 mi140.77 nmi
163 mi141.64 nmi
164 mi142.51 nmi
165 mi143.38 nmi
166 mi144.25 nmi
167 mi145.12 nmi
168 mi145.99 nmi
169 mi146.86 nmi
170 mi147.73 nmi
171 mi148.59 nmi
172 mi149.46 nmi
173 mi150.33 nmi
174 mi151.20 nmi
175 mi152.07 nmi
176 mi152.94 nmi
177 mi153.81 nmi
178 mi154.68 nmi
179 mi155.55 nmi
180 mi156.42 nmi
181 mi157.28 nmi
182 mi158.15 nmi
183 mi159.02 nmi
184 mi159.89 nmi
185 mi160.76 nmi
186 mi161.63 nmi
187 mi162.50 nmi
188 mi163.37 nmi
189 mi164.24 nmi
190 mi165.11 nmi
191 mi165.97 nmi
192 mi166.84 nmi
193 mi167.71 nmi
194 mi168.58 nmi
195 mi169.45 nmi
196 mi170.32 nmi
197 mi171.19 nmi
198 mi172.06 nmi
199 mi172.93 nmi
200 mi173.80 nmi

Conversion factor of 1 mile to other units of length

Here is a reference list providing a conversion of 1 mile (mi) to its equivalent values in various units of length, both metric and imperial:

  • 1 mile (mi) = 1,609,344,000,000 nanometers (nm)
  • 1 mile (mi) = 1,609,344,000 micrometers (ยตm)
  • 1 mile (mi) = 1,609,344 millimeters (mm)
  • 1 mile (mi) = 160,934.4 centimeters (cm)
  • 1 mile (mi) = 16,093.44 decimeters (dm)
  • 1 mile (mi) = 1,609.344 meters (m)
  • 1 mile (mi) = 1.609344 kilometers (km)
  • 1 mile (mi) = 63,360 inches (in)
  • 1 mile (mi) = 5,280 feet (ft)
  • 1 mile (mi) = 1,760 yards (yd)
  • 1 mile (mi) = 0.86897624190065 nautical mile (nmi)

What is a mile (mi)?

Definition of mile: A mile (formally known as statute mile) is an imperial and US customary unit of length equivalent to 1,760 yards or 1.609 kilometers. It is commonly used in the United States and the United Kingdom for measuring longer distances, especially on roads and highways. The abbreviation for mile is mi.

What is a nautical mile (nmi)?

Definition of nautical mile: A nautical mile is a unit of length used primarily in maritime and aviation contexts for measuring distances over water or air. It is based on the Earthโ€™s circumference and is defined as one minute of latitude along any meridian. It is approximately equal to 1,852 meters or about 1.15078 miles.

The nautical mile technically not part of the U.S. customary, imperial or metric systems of measurement. Therefore the nautical mile is considered as a specialized unit of measurement distinct from other systems of measurement, used specifically for maritime and aviation navigational purposes.

The abbreviation for nautical mile is nmi.