How to convert
cm = mm × 0.1
Reverse: mm = cm × 10
cm = mm × 0.1
Reverse: mm = cm × 10
Converting mm to cm
mm (millimeter) and cm (centimeter) are units of length. One mm equals 0.1 cm. Just type a value in the box above to convert instantly — useful for recipes, drawings, product specs and travel between metric and imperial units.
mm to cm conversion chart
| mm | cm |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 20 mm | 2 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
Frequently asked questions
- How many cm are in one mm?
- 1 mm = 0.1 cm.
- How do I convert cm back to mm?
- Multiply the cm value by 10 to get mm.
- Is my input sent to a server?
- No. Everything is calculated locally in your browser and nothing is uploaded or stored.