Unit Converter — Free Online
Convert between length, weight, temperature, volume, speed, area, and digital units.
How to Convert Centimeters to Millimeters
Multiply the centimeter value by 10. One centimeter is exactly 10 millimeters within the metric system.
Centimeters to Millimeters Conversion Table
| Centimeters | Millimeters |
|---|---|
| 0.5 | 5 |
| 1 | 10 |
| 2 | 20 |
| 5 | 50 |
| 10 | 100 |
| 15 | 150 |
| 20 | 200 |
| 25 | 250 |
| 50 | 500 |
| 100 | 1000 |
| 250 | 2500 |
| 500 | 5000 |
| 1000 | 10000 |
How Many Millimeters in a Centimeter?
1 centimeter equals 10 millimeters. To convert any value, multiply the number of centimeters by 10.
Common Use Cases
3D printing enthusiasts set layer heights and nozzle diameters in millimeters, but design software sometimes exports dimensions in centimeters. A wall thickness of 0.2 cm must be entered as 2 mm in slicer settings, and misinterpreting the unit can result in prints that are ten times too thick or too thin, wasting filament and time.
Ophthalmologists and opticians measure pupillary distance (PD) in millimeters for accurate lens fitting, but some measurement tools report in centimeters. A PD of 6.3 cm equals 63 mm, and precision matters because even a 1 mm error can cause eye strain and headaches from misaligned optical centers in prescription eyeglasses.
Scale model builders working with architectural plans in centimeters need millimeter precision for cutting balsa wood, styrene, and brass parts. A column that measures 1.5 cm on the plan becomes 15 mm at the workbench, where hobby knives and micro saws are graduated in millimeter increments.