Use these online calculators to convert between millimeters (mm) and centimeters (cm). These Length conversion calculators provide a quick and easy way to convert mm to cm, or cm to mm.
Enter your value in one of the conversion calculators below to convert mm to cm or convert cm to mm.
How to convert mm to cm: Use the conversion calculator titled "Convert mm to cm". Enter a value in the mm field and click on the "Calculate cm" button. Your answer will appear in the cm field.
How to convert cm to mm: Use the conversion calculator titled "Convert cm to mm". Enter a value in the cm field and click on the "Calculate mm" button. Your answer will appear in the mm field.
Both millimeter (mm) and centimeter (cm) are units of length in the Metric System. So when you convert between these units, you are performing a conversion between two units within the Metric System.
Let's take a closer look at the conversion formulas so that you can do these conversions yourself either 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|
|11 mm||1.1 cm|
|12 mm||1.2 cm|
|13 mm||1.3 cm|
|14 mm||1.4 cm|
|15 mm||1.5 cm|
|20 mm||2 cm|
|25 mm||2.5 cm|
|30 mm||3 cm|
|40 mm||4 cm|
|50 mm||5 cm|
|75 mm||7.5 cm|
|100 mm||10 cm|
|500 mm||50 cm|
|1000 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|
|11 cm||110 mm|
|12 cm||120 mm|
|13 cm||130 mm|
|14 cm||140 mm|
|15 cm||150 mm|
|20 cm||200 mm|
|25 cm||250 mm|
|30 cm||300 mm|
|40 cm||400 mm|
|50 cm||500 mm|
|75 cm||750 mm|
|100 cm||1000 mm|
|500 cm||5000 mm|
|1000 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 (and Imperial)|
|feet||ft or '||US Customary Units (and Imperial)||1 foot = 12 inches|
|yards||yd||US Customary Units (and Imperial)||1 yard = 3 feet|
|miles||mi||US Customary Units (and Imperial)||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|