mm to cm

Type a value in millimeters and see how much it is in centimeters (plus the other units in the category). All in your browser.

1 mm = 0.1 cm
1 cm = 10 mm

What you type never leaves your device. Everything is calculated in your browser.

How to convert mm to cm

  1. Type the value in mm in the “Value” field.
  2. See the result in cm, highlighted at the top.
  3. You also see the same value in the other units of the category.
  4. Tap Copy result to take the equivalents with you.

The formula and examples

1 mm equals 0.1 cm, and 1 cm equals 10 mm. To convert, multiply the mm value by 0.1: 10 mm = 1 cm; 55 mm = 5.5 cm; 300 mm = 30 cm.

Divide by 10: every 10 millimeters make one centimeter.

mm × 0.1 = cm
cm × 10 = mm

Millimeters (mm) to Centimeters (cm) conversion table

Millimeters (mm)Centimeters (cm)
0.50.05
10.1
20.2
30.3
40.4
50.5
60.6
70.7
80.8
90.9
101
111.1
121.2
141.4
151.5
161.6
181.8
202
21.12.11
252.5
303
353.5
404
42.1954.2195
454.5
505
555.5
606
656.5
707
757.5
808
909
10010
11011
12012
12512.5
13013
14014
15015
16016
17017
17517.5
18018
19019
20020
25025
30030
40040
50050
75075
1,000100

Centimeters (cm) to Millimeters (mm) conversion table

Centimeters (cm)Millimeters (mm)
0.55
110
220
330
440
550
660
770
880
990
10100
11110
12120
14140
15150
16160
18180
20200
21.1211
25250
30300
35350
40400
42.195421.95
45450
50500
55550
60600
65650
70700
75750
80800
90900
1001,000
1101,100
1201,200
1251,250
1301,300
1401,400
1501,500
1601,600
1701,700
1751,750
1801,800
1901,900
2002,000
2502,500
3003,000
4004,000
5005,000
7507,500
1,00010,000

Good to know

Frequently asked questions

How much is 10 mm in cm?

1 cm.

How much is 55 mm in cm?

5.5 cm.

How many mm are in 1 cm?

10 mm.

How do I convert mm to cm in my head?

Divide by 10: every 10 millimeters make one centimeter.