Millimeters to Centimeters converter (mm to cm)
Convert Millimeters (mm) to Centimeters (cm) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert Millimeters to Centimeters
1 millimeter (mm) is equal to 0.1 centimeters (cm).
1 mm = 0.1 cm
The length L in centimeters (cm) is equal to the length L in millimeters (mm) divided by 10:
Example: Convert 50 mm to cm:
L(cm) = 50 ÷ 10 = 5 cm
What is a Millimeters?
The millimetre (mm) is 1÷1,000 of a metre. Machining, rainfall, and small product dimensions are specified in millimetres.
What is a Centimeters?
The centimetre (cm) is 1÷100 of a metre. Clothing sizes, height charts, and school geometry problems commonly use centimetres.
This page converts length from Millimeters into Centimeters. One mm equals 0.1 cm.
Millimeters to Centimeters conversion table
Common mm values and the matching cm result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 0 mm | 0 cm |
| 1 mm | 0.1 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 25 mm | 2.5 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| 200 mm | 20 cm |
| 500 mm | 50 cm |
| 1000 mm | 100 cm |
How this calculator works
The form on this page is a Millimeters-to-Centimeters converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the cm result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many cm are in 1 mm?
1 mm = 0.1 cm.
How do I convert Millimeters to Centimeters?
The length L in centimeters (cm) is equal to the length L in millimeters (mm) divided by 10:
Is this mm to cm converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.