Kilometers (km) to Millimeters (mm) Converter

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

Convert kilometers to other units of length:

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How many kilometers (km) are in 1 millimeter (mm)? What is the formula for how to convert kilometers to millimeters (km to mm)?

1 kilometer (km) = 1,000,000 millimeters (mm)
So we can say that there are 1,000,000 millimeters in 1 kilometer.
This means that the multiplication conversion factor to convert a quantity expressed in a kilometer unit of measurement to an equivalent quantity expressed in a millimeter unit of measurement is 1,000,000.

Inversely (or reciprocally),

1 millimeter (mm) = 0.000001 kilometer (km)
So we can say that there is 0.000001 kilometer in 1 millimeter.
This means that the division conversion factor to convert a quantity expressed in a kilometer unit of measurement to an equivalent quantity expressed in a millimeter unit of measurement is 0.000001.

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

mm = km × 1,000,000    → This is the formula based on the multiplication conversion factor.

and

mm = km ÷ 0.000001    → This is the formula based on the division conversion factor.

For example, if you have a length of 13.5 kilometers that you want to convert to millimeters, you would use either of the two formulas as follows:

mm = 13.5 km × 1,000,000 = 13,500,000 mm
mm = 13.5 km ÷ 0.000001 = 13,500,000 mm

So, the result is the same using either formula, which is 13,500,000 millimeters.

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

kilometers (km)millimeters (mm)
1 km1,000,000 mm
2 km2,000,000 mm
3 km3,000,000 mm
4 km4,000,000 mm
5 km5,000,000 mm
6 km6,000,000 mm
7 km7,000,000 mm
8 km8,000,000 mm
9 km9,000,000 mm
10 km10,000,000 mm
11 km11,000,000 mm
12 km12,000,000 mm
13 km13,000,000 mm
14 km14,000,000 mm
15 km15,000,000 mm
16 km16,000,000 mm
17 km17,000,000 mm
18 km18,000,000 mm
19 km19,000,000 mm
20 km20,000,000 mm
21 km21,000,000 mm
22 km22,000,000 mm
23 km23,000,000 mm
24 km24,000,000 mm
25 km25,000,000 mm
26 km26,000,000 mm
27 km27,000,000 mm
28 km28,000,000 mm
29 km29,000,000 mm
30 km30,000,000 mm
31 km31,000,000 mm
32 km32,000,000 mm
33 km33,000,000 mm
34 km34,000,000 mm
35 km35,000,000 mm
36 km36,000,000 mm
37 km37,000,000 mm
38 km38,000,000 mm
39 km39,000,000 mm
40 km40,000,000 mm
41 km41,000,000 mm
42 km42,000,000 mm
43 km43,000,000 mm
44 km44,000,000 mm
45 km45,000,000 mm
46 km46,000,000 mm
47 km47,000,000 mm
48 km48,000,000 mm
49 km49,000,000 mm
50 km50,000,000 mm
51 km51,000,000 mm
52 km52,000,000 mm
53 km53,000,000 mm
54 km54,000,000 mm
55 km55,000,000 mm
56 km56,000,000 mm
57 km57,000,000 mm
58 km58,000,000 mm
59 km59,000,000 mm
60 km60,000,000 mm
61 km61,000,000 mm
62 km62,000,000 mm
63 km63,000,000 mm
64 km64,000,000 mm
65 km65,000,000 mm
66 km66,000,000 mm
67 km67,000,000 mm
68 km68,000,000 mm
69 km69,000,000 mm
70 km70,000,000 mm
71 km71,000,000 mm
72 km72,000,000 mm
73 km73,000,000 mm
74 km74,000,000 mm
75 km75,000,000 mm
76 km76,000,000 mm
77 km77,000,000 mm
78 km78,000,000 mm
79 km79,000,000 mm
80 km80,000,000 mm
81 km81,000,000 mm
82 km82,000,000 mm
83 km83,000,000 mm
84 km84,000,000 mm
85 km85,000,000 mm
86 km86,000,000 mm
87 km87,000,000 mm
88 km88,000,000 mm
89 km89,000,000 mm
90 km90,000,000 mm
91 km91,000,000 mm
92 km92,000,000 mm
93 km93,000,000 mm
94 km94,000,000 mm
95 km95,000,000 mm
96 km96,000,000 mm
97 km97,000,000 mm
98 km98,000,000 mm
99 km99,000,000 mm
100 km100,000,000 mm
kilometers (km)millimeters (mm)
101 km101,000,000 mm
102 km102,000,000 mm
103 km103,000,000 mm
104 km104,000,000 mm
105 km105,000,000 mm
106 km106,000,000 mm
107 km107,000,000 mm
108 km108,000,000 mm
109 km109,000,000 mm
110 km110,000,000 mm
111 km111,000,000 mm
112 km112,000,000 mm
113 km113,000,000 mm
114 km114,000,000 mm
115 km115,000,000 mm
116 km116,000,000 mm
117 km117,000,000 mm
118 km118,000,000 mm
119 km119,000,000 mm
120 km120,000,000 mm
121 km121,000,000 mm
122 km122,000,000 mm
123 km123,000,000 mm
124 km124,000,000 mm
125 km125,000,000 mm
126 km126,000,000 mm
127 km127,000,000 mm
128 km128,000,000 mm
129 km129,000,000 mm
130 km130,000,000 mm
131 km131,000,000 mm
132 km132,000,000 mm
133 km133,000,000 mm
134 km134,000,000 mm
135 km135,000,000 mm
136 km136,000,000 mm
137 km137,000,000 mm
138 km138,000,000 mm
139 km139,000,000 mm
140 km140,000,000 mm
141 km141,000,000 mm
142 km142,000,000 mm
143 km143,000,000 mm
144 km144,000,000 mm
145 km145,000,000 mm
146 km146,000,000 mm
147 km147,000,000 mm
148 km148,000,000 mm
149 km149,000,000 mm
150 km150,000,000 mm
151 km151,000,000 mm
152 km152,000,000 mm
153 km153,000,000 mm
154 km154,000,000 mm
155 km155,000,000 mm
156 km156,000,000 mm
157 km157,000,000 mm
158 km158,000,000 mm
159 km159,000,000 mm
160 km160,000,000 mm
161 km161,000,000 mm
162 km162,000,000 mm
163 km163,000,000 mm
164 km164,000,000 mm
165 km165,000,000 mm
166 km166,000,000 mm
167 km167,000,000 mm
168 km168,000,000 mm
169 km169,000,000 mm
170 km170,000,000 mm
171 km171,000,000 mm
172 km172,000,000 mm
173 km173,000,000 mm
174 km174,000,000 mm
175 km175,000,000 mm
176 km176,000,000 mm
177 km177,000,000 mm
178 km178,000,000 mm
179 km179,000,000 mm
180 km180,000,000 mm
181 km181,000,000 mm
182 km182,000,000 mm
183 km183,000,000 mm
184 km184,000,000 mm
185 km185,000,000 mm
186 km186,000,000 mm
187 km187,000,000 mm
188 km188,000,000 mm
189 km189,000,000 mm
190 km190,000,000 mm
191 km191,000,000 mm
192 km192,000,000 mm
193 km193,000,000 mm
194 km194,000,000 mm
195 km195,000,000 mm
196 km196,000,000 mm
197 km197,000,000 mm
198 km198,000,000 mm
199 km199,000,000 mm
200 km200,000,000 mm

Conversion factor of 1 kilometer to other units of length

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

  • 1 kilometer (km) = 1,000,000,000,000 nanometers (nm)
  • 1 kilometer (km) = 1,000,000,000 micrometers (µm)
  • 1 kilometer (km) = 1,000,000 millimeters (mm)
  • 1 kilometer (km) = 100,000 centimeters (cm)
  • 1 kilometer (km) = 10,000 decimeters (dm)
  • 1 kilometer (km) = 1,000 meters (m)
  • 1 kilometer (km) = 39,370.078740157 inches (in)
  • 1 kilometer (km) = 3,280.8398950131 feet (ft)
  • 1 kilometer (km) = 1,093.6132983377 yards (yd)
  • 1 kilometer (km) = 0.62137119223733 mile (mi)
  • 1 kilometer (km) = 0.53995680345572 nautical mile (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 ㎞ (U+339E) represents the 2-character Latin abbreviation for kilometer. The Windows Alt code for this character ㎞ is Alt + 13214.

What is a millimeter (mm)?

Definition of millimeter: A millimeter is a unit of length in the International System of Units (SI). It is equivalent to one thousandth of a meter (10^-3 m). It is commonly used for precisely measuring small lengths and dimensions such as mechanical parts in engineering and manufacturing.

The abbreviation for millimeter is mm. The single Unicode character ㎜ (U+339C) represents the 2-character Latin abbreviation for millimeter. The Windows Alt code for this character ㎜ is Alt + 13212.