cm to mm converter

Centimeter (cm):

The centimeter (cm) is a handy metric unit for everyday measurements. You’ll see it used for clothing sizes, school measurements, medical records (like height), and many DIY tasks around the home.

Millimeter (mm):

The millimeter (mm) is one of the smallest commonly used metric units. It’s frequently used in engineering, machining, and manufacturing where fine tolerances matter. Architects, engineers, and product designers rely on millimeters for accuracy in drawings and specifications.

How to convert centimeters to millimeters

Option 1: The fastest way – Use our converter

For instant results, just type your measurement into the cm to mm converter at the top of this page. It's quick, accurate, and hassle-free.

Option 2: The diy way – Use the formula

If you prefer to calculate it yourself, it's straightforward. You only need to remember one number: 10. This is because one centimeter is internationally defined as exactly 10 millimeter.

The formula is simple:

Millimeters = Centimeters × 10

Here's how to do it:

Take your measurement in centimeters.

Multiply that number by 10.

The answer is the measurement in millimeters.

Example: Let's convert 10 cm to mm.

Calculate: 10 × 10 = 100

Result: equals 100 mm

It's really that easy.

Popular length unit conversions

cm to mm conversion table

Centimeters (cm)Millimeters (mm)
1 cm10 mm
2 cm20 mm
3 cm30 mm
4 cm40 mm
5 cm50 mm
6 cm60 mm
7 cm70 mm
8 cm80 mm
9 cm90 mm
10 cm100 mm
11 cm110 mm
12 cm120 mm
13 cm130 mm
14 cm140 mm
15 cm150 mm
16 cm160 mm
17 cm170 mm
18 cm180 mm
19 cm190 mm
20 cm200 mm
21 cm210 mm
22 cm220 mm
23 cm230 mm
24 cm240 mm
25 cm250 mm
26 cm260 mm
27 cm270 mm
28 cm280 mm
29 cm290 mm
30 cm300 mm
31 cm310 mm
32 cm320 mm
33 cm330 mm
34 cm340 mm
35 cm350 mm
36 cm360 mm
37 cm370 mm
38 cm380 mm
39 cm390 mm
40 cm400 mm
41 cm410 mm
42 cm420 mm
43 cm430 mm
44 cm440 mm
45 cm450 mm
46 cm460 mm
47 cm470 mm
48 cm480 mm
49 cm490 mm
50 cm500 mm
Centimeters (cm)Millimeters (mm)
51 cm510 mm
52 cm520 mm
53 cm530 mm
54 cm540 mm
55 cm550 mm
56 cm560 mm
57 cm570 mm
58 cm580 mm
59 cm590 mm
60 cm600 mm
61 cm610 mm
62 cm620 mm
63 cm630 mm
64 cm640 mm
65 cm650 mm
66 cm660 mm
67 cm670 mm
68 cm680 mm
69 cm690 mm
70 cm700 mm
71 cm710 mm
72 cm720 mm
73 cm730 mm
74 cm740 mm
75 cm750 mm
76 cm760 mm
77 cm770 mm
78 cm780 mm
79 cm790 mm
80 cm800 mm
81 cm810 mm
82 cm820 mm
83 cm830 mm
84 cm840 mm
85 cm850 mm
86 cm860 mm
87 cm870 mm
88 cm880 mm
89 cm890 mm
90 cm900 mm
91 cm910 mm
92 cm920 mm
93 cm930 mm
94 cm940 mm
95 cm950 mm
96 cm960 mm
97 cm970 mm
98 cm980 mm
99 cm990 mm
100 cm1,000 mm

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