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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Results in 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, multiply the area by the conversion ratio. One square millimeter is equal to 0.01 square centimeters, so use this simple formula to convert:

square centimeters = square millimeters × 0.01

The area in square centimeters is equal to the square millimeters multiplied by 0.01.

For example, here's how to convert 5 square millimeters to square centimeters using the formula above.
5 sq mm = (5 × 0.01) = 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 Measurements and Equivalent Square Centimeter Conversions

Common square millimeter values converted to the equivalent square centimeter value
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
11 sq mm 0.11 sq cm
12 sq mm 0.12 sq cm
13 sq mm 0.13 sq cm
14 sq mm 0.14 sq cm
15 sq mm 0.15 sq cm
16 sq mm 0.16 sq cm
17 sq mm 0.17 sq cm
18 sq mm 0.18 sq cm
19 sq mm 0.19 sq cm
20 sq mm 0.2 sq cm
21 sq mm 0.21 sq cm
22 sq mm 0.22 sq cm
23 sq mm 0.23 sq cm
24 sq mm 0.24 sq cm
25 sq mm 0.25 sq cm
26 sq mm 0.26 sq cm
27 sq mm 0.27 sq cm
28 sq mm 0.28 sq cm
29 sq mm 0.29 sq cm
30 sq mm 0.3 sq cm
31 sq mm 0.31 sq cm
32 sq mm 0.32 sq cm
33 sq mm 0.33 sq cm
34 sq mm 0.34 sq cm
35 sq mm 0.35 sq cm
36 sq mm 0.36 sq cm
37 sq mm 0.37 sq cm
38 sq mm 0.38 sq cm
39 sq mm 0.39 sq cm
40 sq mm 0.4 sq cm

More Square Millimeter Area Conversions

US Customary
Convert to Square Miles
1 sq mm is equal to 3.861E-13 square miles
Convert to Acres
1 sq mm is equal to 2.4711E-10 acres
Convert to Square Yards
1 sq mm is equal to 1.196E-6 square yards
Convert to Square Feet
1 sq mm is equal to 1.0764E-5 square feet
Convert to Square Inches
1 sq mm is equal to 0.00155 square inches
SI Units
Convert to Square Kilometers
1 sq mm is equal to 1.0E-12 square kilometers
Convert to Square Meters
1 sq mm is equal to 1.0E-6 square meters
Other Metric Units
Convert to Hectares
1 sq mm is equal to 1.0E-10 hectares
Convert to Ares
1 sq mm is equal to 1.0E-8 ares