1 mm = 0.1 cm
1 millimeter equals 0.1 centimeters. To convert millimeters to centimeters, multiply the millimeter value by 0.1. For quick reference: 1 mm = 0.1 cm, 5 mm = 0.5 cm, 10 mm = 1 cm, 100 mm = 10 cm.
Centimeters = Millimeters × 0.1Start with your value in millimeters.
Multiply the millimeter value by 0.1. This is the exact conversion factor from millimeters to centimeters.
The product is your value in centimeters. For example, 5 mm × 0.1 = 0.5 cm.
The exact factor from millimeters to centimeters is 0.1.
Centimeters = Millimeters × 0.1
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 0.1 mm | 0.01 cm |
| 0.25 mm | 0.025 cm |
| 0.5 mm | 0.05 cm |
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 4 mm | 0.4 cm |
| 5 mm | 0.5 cm |
| 6 mm | 0.6 cm |
| 7 mm | 0.7 cm |
| 8 mm | 0.8 cm |
| 9 mm | 0.9 cm |
| 10 mm | 1 cm |
| 11 mm | 1.1 cm |
| 12 mm | 1.2 cm |
| 13 mm | 1.3 cm |
| 14 mm | 1.4 cm |
| 15 mm | 1.5 cm |
| 16 mm | 1.6 cm |
| 18 mm | 1.8 cm |
| 20 mm | 2 cm |
| 22 mm | 2.2 cm |
| 24 mm | 2.4 cm |
| 25 mm | 2.5 cm |
| 28 mm | 2.8 cm |
| 30 mm | 3 cm |
| 32 mm | 3.2 cm |
| 36 mm | 3.6 cm |
| 40 mm | 4 cm |
| 45 mm | 4.5 cm |
| 48 mm | 4.8 cm |
| 50 mm | 5 cm |
| 60 mm | 6 cm |
| 70 mm | 7 cm |
| 75 mm | 7.5 cm |
| 80 mm | 8 cm |
| 90 mm | 9 cm |
| 100 mm | 10 cm |
| 125 mm | 12.5 cm |
| 150 mm | 15 cm |
| 200 mm | 20 cm |
| 250 mm | 25 cm |
| 300 mm | 30 cm |
| 400 mm | 40 cm |
| 500 mm | 50 cm |
| 600 mm | 60 cm |
| 750 mm | 75 cm |
| 800 mm | 80 cm |
| 900 mm | 90 cm |
| 1000 mm | 100 cm |
A credit card is about 0.76 mm thick. Standard A4 paper is 0.1 mm thick. A pencil lead is around 2 mm in diameter. In centimeters, that gives you: 1 mm = 0.1 cm, 10 mm = 1 cm, 100 mm = 10 cm.
The millimeter (mm) is a metric unit of length equal to one-thousandth of a meter. It is the working unit of engineering drawings, precision manufacturing, electronics, and most consumer-goods specifications outside the United States. A credit card is about 0.76 mm thick; the diameter of a pencil lead is around 2 mm.
The centimeter (cm) is a metric unit of length equal to one-hundredth of a meter. It is the most common everyday unit outside the US for measuring small to mid-sized objects, body dimensions like height when stated in metric, fabric, and TV diagonals. A US quarter coin is about 2.4 cm wide; an average adult thumb is around 6 cm long.