Millimeters to Centimeters Converter
1 millimeter = 0.1 centimeters
1 millimeter equals 0.1 centimeters
How to convert millimeters to centimeters
Feet, inches, yards and miles use the international foot (0.3048 m). Older US survey-foot records use a different definition; check the survey document before applying these factors.
cm = mm × 1/10One millimeter is 1/10 centimeters, so a single multiplication converts any value.
1 cm = 10 × 1/10Millimeters to centimeters conversion table
Common values in millimeters, converted to centimeters.
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 1 | 0.1 |
| 2 | 0.2 |
| 3 | 0.3 |
| 4 | 0.4 |
| 5 | 0.5 |
| 10 | 1 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 250 | 25 |
| 500 | 50 |
| 1,000 | 100 |
About these units
millimetermm
One thousandth of a metre, the usual unit for engineering drawings.
centimetercm
One hundredth of a metre, widely used for body and object measurements.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.