Convert Millimetre to Centimetre
Turn Millimetres into Centimetres in an instant. Type a value below to get an accurate mm → cm result, with the formula and a quick-reference table.
1 mm = 0.1 cm
Quick answer: 1 Millimetre = 0.1 Centimetre
Millimetre to Centimetre conversion table
| Millimetre (mm) | Centimetre (cm) |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 20 mm | 2 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| 500 mm | 50 cm |
| 1,000 mm | 100 cm |
How to convert Millimetre to Centimetre
To convert Millimetres to Centimetres, multiply the value by 0.1.
- Take your measurement in Millimetres.
- Multiply it by 0.1 — the number of Centimetres in one Millimetre.
- The result is the same amount, expressed in Centimetres.
To go the other way, multiply Centimetres by 10 — or simply divide by 0.1.
For example, a sharp pencil tip is about 0.5 mm, which is 0.05 cm.
About Millimetre and Centimetre
A millimetre is one-thousandth of a metre (1/1000 m) — the smallest line printed on a standard ruler. It is the everyday unit for fine measurements such as engineering tolerances, screw threads, paper thickness and rainfall.
A centimetre is one-hundredth of a metre, or 10 millimetres. It is the unit most people reach for to measure height, paper sizes and small objects in metric countries.
Both the Millimetre and the Centimetre are metric units, so converting between them is just a change of scale: one Millimetre equals 0.1 Centimetres, and the Centimetre is the larger unit.
Other length conversions
Frequently asked questions
How many Centimetres are in a Millimetre?
1 Millimetre equals 0.1 Centimetre (mm → cm). To convert any amount, multiply the number of Millimetres by 0.1.
How do I convert Millimetre to Centimetre?
Enter the number of Millimetres in the converter above and read the result in Centimetres. It applies the exact mm → cm factor instantly, with full precision.
Is the Millimetre to Centimetre converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined length factors and full floating-point precision, then rounds the display to a clean, readable number.