Online calculators to convert millimeters to centimeters (mm to cm) and centimeters to millimeters (cm to mm) with additional formulas, examples, and conversion tables. Our conversions provide a quick and easy way to convert between these units.
Enter your value in one of the conversion calculators below to convert mm to cm or convert cm to mm.
Let's take a closer look at the conversion formulas so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from mm to cm is:
cm = mm x 0.1
The formula to convert from cm to mm is:
mm = cm x 10
Next, let's look at some examples showing the work and calculations that are involved in converting between milimeters (mm) and centimeters (cm).
Task: Convert 120 millimeters to centimeters (show work) Formula: mm x 0.1 = cm Calculations: 120 mm x 0.1 = 12 cm Result: 120 mm is equal to 12 cm
Task: Convert 35 centimeters to millimeters (show work) Formula: cm x 10 = mm Calculations: 35 cm x 10 = 350 mm Result: 35 cm is equal to 350 mm
For quick reference purposes, below are conversion tables that you can use to convert from mm to cm, and cm to mm.
|millimeters (mm)||centimeters (cm)|
|1 mm||0.1 cm|
|2 mm||0.2 cm|
|3 mm||0.3 cm|
|4 mm||0.4 cm|
|5 mm||0.5 cm|
|6 mm||0.6 cm|
|7 mm||0.7 cm|
|8 mm||0.8 cm|
|9 mm||0.9 cm|
|10 mm||1 cm|
|20 mm||2 cm|
|30 mm||3 cm|
|40 mm||4 cm|
|50 mm||5 cm|
|75 mm||7.5 cm|
|100 mm||10 cm|
|250 mm||25 cm|
|500 mm||50 cm|
|750 mm||75 cm|
|1,000 mm||100 cm|
|centimeters (cm)||millimeters (mm)|
|1 cm||10 mm|
|2 cm||20 mm|
|3 cm||30 mm|
|4 cm||40 mm|
|5 cm||50 mm|
|6 cm||60 mm|
|7 cm||70 mm|
|8 cm||80 mm|
|9 cm||90 mm|
|10 cm||100 mm|
|20 cm||200 mm|
|30 cm||300 mm|
|40 cm||400 mm|
|50 cm||500 mm|
|75 cm||750 mm|
|100 cm||1,000 mm|
|250 cm||2,500 mm|
|500 cm||5,000 mm|
|750 cm||7,500 mm|
|1,000 cm||10,000 mm|
The following is a list of definitions relating to conversions between millimeters and centimeters.
A millimeter is a unit of length in the Metric System. The symbol for millimeter is mm. There are 1,000 millimeters in a meter. The International spelling is millimetre.
A centimeter is a unit of length in the Metric System. The symbol for centimeter is cm. There are 100 centimeters in a meter. The International spelling is centimetre.
There are 10 millimeters in a centimeter.
There are 0.1 centimeters in a millimeter.
This table provides a summary of the Length units within their respective measurement systems.
|inches||in or "||US Customary Units/Imperial System|
|feet||ft or '||US Customary Units/Imperial System||1 foot = 12 inches|
|yards||yd||US Customary Units/Imperial System||1 yard = 3 feet|
|miles||mi||US Customary Units/Imperial System||1 mile = 1760 yards or 5280 feet|
|millimeter||mm||Metric System||1000 mm = 1 m|
|centimeter||cm||Metric System||100 cm = 1 m, 1 cm = 10 mm|
|decimeter||dm||Metric System||10 dm = 1 m, 1 dm = 10 cm|
|meter||m||Metric System||1 m = 1000 mm, 100 cm, 10 dm|
|kilometer||km||Metric System||1 km = 1000 m|