Convert Square Millimeters to Square Centimeters

Enter the area in square millimeters below to get the value converted to square centimeters.

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1 sq mm = 0.01 sq cm

How to Convert Square Millimeters to Square Centimeters

Calculators can be used to convert measurements from one unit to another

To convert a square millimeter measurement to a square centimeter measurement, divide the area by the conversion ratio. One square centimeter is equal to 100 square millimeters, so use this simple formula to convert:

square centimeters = square millimeters ÷ 100

The area in square centimeters is equal to the square millimeters divided by 100.

For example, here's how to convert 5 square millimeters to square centimeters using the formula above.
5 sq mm = (5 ÷ 100) = 0.05 sq cm

Square millimeters and square centimeters are both units used to measure area. Keep reading to learn more about each unit of measure.

Square Millimeters

One square millimeter is equal to the area of a square with edges that are 1 millimeter in length.

The square millimeter, or square millimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "milli" is the prefix for 10-3. A square millimeter is sometimes also referred to as a square mm. Square millimeters can be abbreviated as sq mm, and are also sometimes abbreviated as mm². For example, 1 square millimeter can be written as 1 sq mm or 1 mm².

Square Centimeters

One square centimeter is equal to the area of a square with 1 centimeter long sides.

The square centimeter, or square centimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "centi" is the prefix for 10-2. A square centimeter is sometimes also referred to as a square cm. Square centimeters can be abbreviated as sq cm, and are also sometimes abbreviated as cm². For example, 1 square centimeter can be written as 1 sq cm or 1 cm².

Square Millimeter to Square Centimeter Conversion Table

Square millimeter measurements converted to square centimeters
Square Millimeters Square Centimeters
1 sq mm 0.01 sq cm
2 sq mm 0.02 sq cm
3 sq mm 0.03 sq cm
4 sq mm 0.04 sq cm
5 sq mm 0.05 sq cm
6 sq mm 0.06 sq cm
7 sq mm 0.07 sq cm
8 sq mm 0.08 sq cm
9 sq mm 0.09 sq cm
10 sq mm 0.1 sq cm