Nautical Miles (nmi) to Kilometers (km) Converter

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

How many nautical miles (nmi) are in 1 kilometer (km)? What is the formula for how to convert nautical miles to kilometers (nmi to km)?

1 nautical mile (nmi) = 1.852 kilometers (km)
So we can say that there is 1.852 kilometers in 1 nautical mile.
This means that the multiplication conversion factor to convert a quantity expressed in a nautical mile unit of measurement to an equivalent quantity expressed in a kilometers unit of measurement is 1.852.

Inversely (or reciprocally),

1 kilometer (km) = 0.53995680345572 nautical mile (nmi)
So we can say that there is 0.53995680345572 nautical mile in 1 kilometer.
This means that the division conversion factor to convert a quantity expressed in a nautical mile unit of measurement to an equivalent quantity expressed in a kilometer unit of measurement is 0.53995680345572.

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 nautical miles to an equivalent quantity of length expressed in kilometers (nmi to km). Both formulas will yield the same result. The formulas are:

km = nmi ร— 1.852 ย  ย โ†’ This is the formula based on the multiplication conversion factor.

and

km = nmi รท 0.53995680345572 ย  ย โ†’ This is the formula based on the division conversion factor.

For example, if you have a length of 150 nautical miles that you want to convert to kilometers, you would use either of the two formulas as follows:

km = 150 nmi ร— 1.852 = 277.8 km
km = 150 nmi รท 0.53995680345572 = 277.8 km

So, the result is the same using either formula, which is 277.8 kilometers.

Nautical miles to kilometers (nmi to km) 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 nautical miles to kilometers is needed, here is a nautical-miles-to-kilometers conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in nautical miles and their equivalent measurement values in kilometers. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

nautical miles (nmi)kilometers (km)
1 nmi1.8520 km
2 nmi3.7040 km
3 nmi5.5560 km
4 nmi7.4080 km
5 nmi9.2600 km
6 nmi11.1120 km
7 nmi12.9640 km
8 nmi14.8160 km
9 nmi16.6680 km
10 nmi18.5200 km
11 nmi20.3720 km
12 nmi22.2240 km
13 nmi24.0760 km
14 nmi25.9280 km
15 nmi27.7800 km
16 nmi29.6320 km
17 nmi31.4840 km
18 nmi33.3360 km
19 nmi35.1880 km
20 nmi37.0400 km
21 nmi38.8920 km
22 nmi40.7440 km
23 nmi42.5960 km
24 nmi44.4480 km
25 nmi46.3000 km
26 nmi48.1520 km
27 nmi50.0040 km
28 nmi51.8560 km
29 nmi53.7080 km
30 nmi55.5600 km
31 nmi57.4120 km
32 nmi59.2640 km
33 nmi61.1160 km
34 nmi62.9680 km
35 nmi64.8200 km
36 nmi66.6720 km
37 nmi68.5240 km
38 nmi70.3760 km
39 nmi72.2280 km
40 nmi74.0800 km
41 nmi75.9320 km
42 nmi77.7840 km
43 nmi79.6360 km
44 nmi81.4880 km
45 nmi83.3400 km
46 nmi85.1920 km
47 nmi87.0440 km
48 nmi88.8960 km
49 nmi90.7480 km
50 nmi92.6000 km
51 nmi94.4520 km
52 nmi96.3040 km
53 nmi98.1560 km
54 nmi100.0080 km
55 nmi101.8600 km
56 nmi103.7120 km
57 nmi105.5640 km
58 nmi107.4160 km
59 nmi109.2680 km
60 nmi111.1200 km
61 nmi112.9720 km
62 nmi114.8240 km
63 nmi116.6760 km
64 nmi118.5280 km
65 nmi120.3800 km
66 nmi122.2320 km
67 nmi124.0840 km
68 nmi125.9360 km
69 nmi127.7880 km
70 nmi129.6400 km
71 nmi131.4920 km
72 nmi133.3440 km
73 nmi135.1960 km
74 nmi137.0480 km
75 nmi138.9000 km
76 nmi140.7520 km
77 nmi142.6040 km
78 nmi144.4560 km
79 nmi146.3080 km
80 nmi148.1600 km
81 nmi150.0120 km
82 nmi151.8640 km
83 nmi153.7160 km
84 nmi155.5680 km
85 nmi157.4200 km
86 nmi159.2720 km
87 nmi161.1240 km
88 nmi162.9760 km
89 nmi164.8280 km
90 nmi166.6800 km
91 nmi168.5320 km
92 nmi170.3840 km
93 nmi172.2360 km
94 nmi174.0880 km
95 nmi175.9400 km
96 nmi177.7920 km
97 nmi179.6440 km
98 nmi181.4960 km
99 nmi183.3480 km
100 nmi185.2000 km
nautical miles (nmi)kilometers (km)
101 nmi187.0520 km
102 nmi188.9040 km
103 nmi190.7560 km
104 nmi192.6080 km
105 nmi194.4600 km
106 nmi196.3120 km
107 nmi198.1640 km
108 nmi200.0160 km
109 nmi201.8680 km
110 nmi203.7200 km
111 nmi205.5720 km
112 nmi207.4240 km
113 nmi209.2760 km
114 nmi211.1280 km
115 nmi212.9800 km
116 nmi214.8320 km
117 nmi216.6840 km
118 nmi218.5360 km
119 nmi220.3880 km
120 nmi222.2400 km
121 nmi224.0920 km
122 nmi225.9440 km
123 nmi227.7960 km
124 nmi229.6480 km
125 nmi231.5000 km
126 nmi233.3520 km
127 nmi235.2040 km
128 nmi237.0560 km
129 nmi238.9080 km
130 nmi240.7600 km
131 nmi242.6120 km
132 nmi244.4640 km
133 nmi246.3160 km
134 nmi248.1680 km
135 nmi250.0200 km
136 nmi251.8720 km
137 nmi253.7240 km
138 nmi255.5760 km
139 nmi257.4280 km
140 nmi259.2800 km
141 nmi261.1320 km
142 nmi262.9840 km
143 nmi264.8360 km
144 nmi266.6880 km
145 nmi268.5400 km
146 nmi270.3920 km
147 nmi272.2440 km
148 nmi274.0960 km
149 nmi275.9480 km
150 nmi277.8000 km
151 nmi279.6520 km
152 nmi281.5040 km
153 nmi283.3560 km
154 nmi285.2080 km
155 nmi287.0600 km
156 nmi288.9120 km
157 nmi290.7640 km
158 nmi292.6160 km
159 nmi294.4680 km
160 nmi296.3200 km
161 nmi298.1720 km
162 nmi300.0240 km
163 nmi301.8760 km
164 nmi303.7280 km
165 nmi305.5800 km
166 nmi307.4320 km
167 nmi309.2840 km
168 nmi311.1360 km
169 nmi312.9880 km
170 nmi314.8400 km
171 nmi316.6920 km
172 nmi318.5440 km
173 nmi320.3960 km
174 nmi322.2480 km
175 nmi324.1000 km
176 nmi325.9520 km
177 nmi327.8040 km
178 nmi329.6560 km
179 nmi331.5080 km
180 nmi333.3600 km
181 nmi335.2120 km
182 nmi337.0640 km
183 nmi338.9160 km
184 nmi340.7680 km
185 nmi342.6200 km
186 nmi344.4720 km
187 nmi346.3240 km
188 nmi348.1760 km
189 nmi350.0280 km
190 nmi351.8800 km
191 nmi353.7320 km
192 nmi355.5840 km
193 nmi357.4360 km
194 nmi359.2880 km
195 nmi361.1400 km
196 nmi362.9920 km
197 nmi364.8440 km
198 nmi366.6960 km
199 nmi368.5480 km
200 nmi370.4000 km

Conversion factor of 1 nautical mile to other units of length

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

  • 1 nautical mile (nmi) = 1,852,000,000,000 nanometers (nm)
  • 1 nautical mile (nmi) = 1,852,000,000 micrometers (ยตm)
  • 1 nautical mile (nmi) = 1,852,000 millimeters (mm)
  • 1 nautical mile (nmi) = 185,200 centimeters (cm)
  • 1 nautical mile (nmi) = 18,520 decimeters (dm)
  • 1 nautical mile (nmi) = 1,852 meters (m)
  • 1 nautical mile (nmi) = 1.852 kilometers (km)
  • 1 nautical mile (nmi) = 72,913.385826772 inches (in)
  • 1 nautical mile (nmi) = 6,076.1154855643 feet (ft)
  • 1 nautical mile (nmi) = 2,025.3718285214 yards (yd)
  • 1 nautical mile (nmi) = 1.1507794480235 miles (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.

What is a kilometer (km)?

Definition of kilometer: A kilometer is a unit of length in the International System of Units (SI), commonly known as the metric system, equal to one thousand meters (10^3 m). It is commonly used for longer distances, such as races, road distances and geographical features.

The abbreviation for kilometer is km. The single Unicode character ใŽž (U+339E) represents the 2-character Latin abbreviation for kilometer. The Windows Alt code for this character ใŽž is Alt + 13214.