MM to CM Converter

Instantly calculate! Your online conversion tool always at hand to easily convert millimeters to centimeters. Perfect for measurements, crafts, engineering, and everyday unit conversion. Simply enter your value and get accurate results immediately.

How to Convert MM to CM

cm = mm ÷ 10

1 mm = 0.1 cm
1 cm = 10 mm

Example: convert 10 mm to cm:
10 mm = 10 ÷ 10 = 1 cm

MM to CM

Value:

Convert to:

From millimeters to centimeters

1 mm = 0.1 cm

Quick Conversion Table

MM	CM
1	0.1
2	0.2
5	0.5
10	1
15	1.5

MM	CM
20	2
25	2.5
50	5
100	10
150	15

MM	CM
200	20
250	25
500	50
1000	100

About the Units

Millimeter (mm)

A millimeter is a unit of length in the metric system equal to one thousandth of a meter (0.001 m) or one tenth of a centimeter (0.1 cm). Millimeters are widely used for precise measurements in engineering, manufacturing, science, and everyday life. The abbreviation "mm" is universally recognized.

Centimeter (cm)

A centimeter is a unit of length in the metric system equal to one hundredth of a meter (0.01 m) or 10 millimeters. Centimeters are commonly used worldwide for everyday measurements, body measurements, clothing sizes, and in many scientific applications. The abbreviation "cm" is standard internationally.

Frequently Asked Questions

How many cm is 1 mm?

1 mm equals 0.1 cm (one tenth of a centimeter).

How do I convert mm to cm?

To convert mm to cm, divide the millimeter value by 10. For example, 50 mm = 50 ÷ 10 = 5 cm.

What is the formula for mm to cm?

The formula is: cm = mm ÷ 10 (or equivalently, cm = mm × 0.1).

How many mm is 1 cm?

1 cm equals exactly 10 mm.

How do I convert 25 mm to cm?

25 mm = 25 ÷ 10 = 2.5 cm.

What is 100 mm in cm?

100 mm equals 10 cm.

Why are there 10 mm in a cm?

The metric system is based on powers of 10. A centimeter is defined as one hundredth of a meter, and a millimeter as one thousandth of a meter, so 1 cm = 10 mm.

Is mm smaller than cm?

Yes, a millimeter is smaller than a centimeter. There are 10 millimeters in 1 centimeter.

How do I convert cm back to mm?

To convert cm to mm, multiply the centimeter value by 10. For example, 5 cm = 5 × 10 = 50 mm.

When should I use mm vs cm?

Use millimeters for very precise measurements (engineering, machining, jewelry). Use centimeters for everyday measurements (body height, furniture dimensions, clothing).