cm to mm Converter
1 centimeter = 10 millimeters. A standard ruler shows both cm and mm.
Formula:1 cm = 10 mm
⇄ Switch to Mm To CmCentimeter to Millimeter — common values
1 cm10 mm
5 cm50 mm
10 cm100 mm
50 cm500 mm
100 cm1,000 mm
500 cm5,000 mm
1,000 cm10,000 mm
How to convert Cm To Mm
To convert cm to mm, use the formula: 1 cm = 10 mm. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Mm To Cm” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Cm To Mm?
1 cm = 10 mm. 1 centimeter = 10 millimeters. A standard ruler shows both cm and mm.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Mm To Cm?
Use the Mm To Cm converter or click the ⇄ switch button above.
More Length conversions
Need more length conversions?
The full converter supports all unit combinations