Formula
mm to cm conversion formula
Use this relationship for a direct conversion:
cm = mm x 0.1
Worked example
2 mm = 0.2 cm.
Pixel conversions assume 96 pixels per inch. Use actual device or print PPI when physical pixel size matters.
Typography and Screen Length conversion
Convert Millimeter to Centimeter
1 millimeter (mm) equals 0.1 centimeter (cm). Enter any value below to convert from mm to cm.
Enter a value and choose units. Results update instantly.
1 mm = 0.1 cm
All Typography units
From 1 mm| Unit | Value |
|---|---|
| Inch in | 0.0393700787 |
| CSS pixel (96 PPI) px | 3.7795275591 |
| Point pt | 2.8346456693 |
| Pica pc | 0.2362204724 |
| Millimeter mm | 1 |
| Centimeter cm | 0.1 |
| Twip twip | 56.6929133858 |
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Quick reference
Millimeter to Centimeter table
| Millimeter (mm) | Centimeter (cm) |
|---|---|
| 0.01 | 0.001 |
| 0.1 | 0.01 |
| 1 | 0.1 |
| 2 | 0.2 |
| 5 | 0.5 |
| 10 | 1 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 1,000 | 100 |
From unit
About the millimeter
One thousandth of a meter.
Symbol: mm
To unit
About the centimeter
Ten millimeters.
Symbol: cm
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Source
Conversion standard
Definitions are checked against CSS Values and Units Level 4. Calculations use full internal precision before display rounding.
View the complete typography and screen length converterQuestions
mm to cm FAQ
How do you convert millimeter to centimeter?
Use the formula cm = mm x 0.1. 1 millimeter (mm) equals 0.1 centimeter (cm).
Is the mm to cm conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.