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Unit Converter

Conversion formula

The conversion factor from millimeters to centimeters is 0.1, which means that 1 millimeter is equal to 0.1 centimeters:

1 mm = 0.1 cm

To convert 3 millimeters into centimeters we have to multiply 3 by the conversion factor in order to get the length amount from millimeters to centimeters. We can also form a simple proportion to calculate the result:

1 mm → 0.1 cm

3 mm → L(cm)

Solve the above proportion to obtain the length L in centimeters:

L(cm) = 3 mm × 0.1 cm

L(cm) = 0.3 cm

The final result is:

3 mm → 0.3 cm

We conclude that 3 millimeters is equivalent to 0.3 centimeters:

3 millimeters = 0.3 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 3.3333333333333 × 3 millimeters.

Another way is saying that 3 millimeters is equal to 1 ÷ 3.3333333333333 centimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three millimeters is approximately zero point three centimeters:

3 mm ≅ 0.3 cm

An alternative is also that one centimeter is approximately three point three three three times three millimeters.

Conversion table

millimeters to centimeters chart

For quick reference purposes, below is the conversion table you can use to convert from millimeters to centimeters

millimeters (mm) centimeters (cm)
4 millimeters 0.4 centimeters
5 millimeters 0.5 centimeters
6 millimeters 0.6 centimeters
7 millimeters 0.7 centimeters
8 millimeters 0.8 centimeters
9 millimeters 0.9 centimeters
10 millimeters 1 centimeters
11 millimeters 1.1 centimeters
12 millimeters 1.2 centimeters
13 millimeters 1.3 centimeters