Millimeters (mm) to Centimeters (cm) Converter

How many millimeters (mm) are in a centimeter (cm)? What is the formula for how to convert millimeters to centimeters (mm to cm)?

1 millimeter (mm) = 0.1 centimeter (cm)
So we can say that there is 0.1 centimeter in 1 millimeter.
This means that the multiplication conversion factor to convert a quantity expressed in a millimeter unit of measurement to an equivalent quantity expressed in a centimeter unit of measurement is 0.1.

Inversely (or reciprocally),

1 centimeter (cm) = 10 millimeters (mm)
So we can say that there is 10 millimeters in 1 centimeter.
This means that the division conversion factor to convert a quantity expressed in a millimeter unit of measurement to an equivalent quantity expressed in a centimeter unit of measurement is 10.

Knowing this inverse mathematical relationship between the two conversion factors and their reciprocal operations, we can derive two formulas to calculate and convert a quantity of length expressed in millimeters to an equivalent quantity of length expressed in centimeters (mm to cm). Both formulas will yield the same result. The formulas are:

cm = mm × 0.1    → This is the formula based on the multiplication conversion factor.

and

cm = mm ÷ 10    → This is the formula based on the division conversion factor.

For example, if you have a length of 75 millimeters that you want to convert to centimeters, you would use either of the two formulas as follows:

cm = 75 mm × 0.1 = 7.5 cm

cm = 75 mm ÷ 10 = 7.5 cm

So, the result is the same using either formula, which is 7.5 centimeters.

Millimeters to centimeters (mm to cm) conversion chart

To save you time and effort spent on having to perform manual calculations or look up conversion formulas every time a conversion from millimeters to centimeters is needed, here is a millimeters-to-centimeters conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in millimeters and their equivalent measurement values in centimeters. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

Conversion of 1 millimeter (mm) to other units of length

Here is a reference list providing a conversion of 1 millimeter (mm) to its equivalent values in various units of length, both metric and imperial:

What is a millimeter (mm)?

Definition of millimeter: A millimeter is a unit of length in the International System of Units (SI). It is equivalent to one thousandth of a meter (10^-3 m). It is commonly used for precisely measuring small lengths and dimensions such as mechanical parts in engineering and manufacturing.

The abbreviation for millimeter is mm. The single Unicode character ㎜ (U+339C) represents the 2-character Latin abbreviation for millimeter. The Windows Alt code for this character ㎜ is Alt + 13212.

What is a centimeter (cm)?

Definition of centimeter: A centimeter is a unit of length in the International System of Units (SI), commonly known as the metric system. It is equal to one hundredth of a meter (10^-2 m). It is often used for everyday measurements involving shorter distances than meters, such as human height.

The abbreviation for centimeter is cm. The single Unicode character ㎝ (U+339D) represents the 2-character Latin abbreviation for centimeter. The Windows Alt code for this character ㎝ is Alt + 13213.