Centimeters to Millimeters Calculator
cm
Millimeters:
Meters:
In m, cm and mm:
Calculation:
Use this calculator to convert centimeters to millimeters. Enter a length in centimeters, with decimals if you need them, and you get the same length in millimeters, in meters, and broken down into meters, centimeters and millimeters.
Below you will find the formula, worked examples and a table of the most common conversions.
How to use the centimeters to millimeters calculator
Step 1: Type the length in centimeters in the box. You can use a decimal point or a comma, for example 2.5 or 2,5.
Step 2: Click Calculate or press the Enter key.
Step 3: The result in millimeters appears in the panel on the right. Below it you will see the same length in meters and in meters, centimeters and millimeters.
Step 4: The Calculation box shows the operations with your numbers.
Formula to convert centimeters to millimeters
One centimeter is exactly 10 millimeters. So to go from centimeters to millimeters, multiply by 10:
| d(mm) = d(cm) × 10 |
Multiplying by 10 is the same as moving the decimal point one place to the right: 2.5 cm becomes 25 mm. To convert centimeters to meters, divide by 100.
Centimeters to millimeters examples
Example 1: How many millimeters is 5 cm?
d(mm) = 5 × 10 = 50 mm
A part that is 5 cm long is 50 mm long.
Example 2: Convert 2.5 cm to millimeters
d(mm) = 2.5 × 10 = 25 mm
Example 3: Convert 17.5 cm to millimeters and meters
d(mm) = 17.5 × 10 = 175 mm
d(m) = 17.5 ÷ 100 = 0.175 m
In meters, centimeters and millimeters that is 17 cm 5 mm.
Example 4: Convert 0.3 cm to millimeters
d(mm) = 0.3 × 10 = 3 mm
Three tenths of a centimeter is three millimeters, a common thickness for thin sheets.
Centimeters to millimeters conversion table
| Centimeters (cm) | Millimeters (mm) | Meters (m) |
|---|---|---|
| 0.1 cm | 1 mm | 0.001 m |
| 0.2 cm | 2 mm | 0.002 m |
| 0.3 cm | 3 mm | 0.003 m |
| 0.5 cm | 5 mm | 0.005 m |
| 1 cm | 10 mm | 0.01 m |
| 1.5 cm | 15 mm | 0.015 m |
| 2 cm | 20 mm | 0.02 m |
| 2.5 cm | 25 mm | 0.025 m |
| 3 cm | 30 mm | 0.03 m |
| 4 cm | 40 mm | 0.04 m |
| 5 cm | 50 mm | 0.05 m |
| 6 cm | 60 mm | 0.06 m |
| 7 cm | 70 mm | 0.07 m |
| 8 cm | 80 mm | 0.08 m |
| 9 cm | 90 mm | 0.09 m |
| 10 cm | 100 mm | 0.1 m |
| 12 cm | 120 mm | 0.12 m |
| 15 cm | 150 mm | 0.15 m |
| 20 cm | 200 mm | 0.2 m |
| 25 cm | 250 mm | 0.25 m |
| 30 cm | 300 mm | 0.3 m |
| 50 cm | 500 mm | 0.5 m |
| 75 cm | 750 mm | 0.75 m |
| 100 cm | 1000 mm | 1 m |
Frequently asked questions
How many millimeters are in a centimeter?
A centimeter has exactly 10 mm. The other way around, 1 cm is 0.01 m.
How do you convert cm to mm?
Multiply the centimeters by 10, or move the decimal point one place to the right. For example, 4.5 cm is 45 mm.
How many mm is 5 cm?
5 cm is 50 mm.
How many millimeters is 2.5 cm?
2.5 cm is 25 mm.
How do I convert millimeters to centimeters?
Divide by 10. You can do it with the millimeters to centimeters calculator.
Learn more
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