Convert Millimeters to Centimeters
Convert millimeters to centimeters instantly. Type a value below, check the formula and table, then see how the same mm to cm conversion looks as a single line in Notes Calculator.
Millimeters to Centimeters formula
One millimeter is 0.1 centimeters, so cm = mm × 0.1. For the reverse, multiply centimeters by 10, or use the Centimeters to Millimeters converter.
Millimeters to Centimeters conversion table
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 1 | 0.1 |
| 2 | 0.2 |
| 5 | 0.5 |
| 10 | 1 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 250 | 25 |
| 500 | 50 |
| 1,000 | 100 |
Millimeters to Centimeters in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 mm to cm on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix millimeters and centimeters without a separate converter.
| Note | Result |
|---|---|
| 100 mm to cm | 10 cm |
| 100 mm in cm | 10 cm |
| 10 cm as mm | 100 mm |
See the unit conversion docs for mixing units in one expression, or open the free web app and try it.
FAQ
Frequently asked questions
- One millimeter equals 0.1 centimeters. To convert millimeters to centimeters, multiply by 0.1; to go back, multiply by 10.
- Type the value, the unit, and the target unit on one line: 100 mm to cm. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.
- Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.
How many centimeters are in one millimeter?
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Convert millimeters to centimeters without leaving your notes.
Notes Calculator is free to start and runs in your browser. Units, currencies, percentages, and variables in one plain-text notepad.
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