Convert Square Centimeters to Square Millimeters

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

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1 sq cm = 100 sq mm

How to Convert Square Centimeters to Square Millimeters

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

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

square millimeters = square centimeters × 100

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

For example, here's how to convert 5 square centimeters to square millimeters using the formula above.
5 sq cm = (5 × 100) = 500 sq mm

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

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 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 Centimeter Measurements and Equivalent Square Millimeter Conversions

Common square centimeter values converted to the equivalent square millimeter value
Square Centimeters Square Millimeters
1 sq cm 100 sq mm
2 sq cm 200 sq mm
3 sq cm 300 sq mm
4 sq cm 400 sq mm
5 sq cm 500 sq mm
6 sq cm 600 sq mm
7 sq cm 700 sq mm
8 sq cm 800 sq mm
9 sq cm 900 sq mm
10 sq cm 1,000 sq mm
11 sq cm 1,100 sq mm
12 sq cm 1,200 sq mm
13 sq cm 1,300 sq mm
14 sq cm 1,400 sq mm
15 sq cm 1,500 sq mm
16 sq cm 1,600 sq mm
17 sq cm 1,700 sq mm
18 sq cm 1,800 sq mm
19 sq cm 1,900 sq mm
20 sq cm 2,000 sq mm
21 sq cm 2,100 sq mm
22 sq cm 2,200 sq mm
23 sq cm 2,300 sq mm
24 sq cm 2,400 sq mm
25 sq cm 2,500 sq mm
26 sq cm 2,600 sq mm
27 sq cm 2,700 sq mm
28 sq cm 2,800 sq mm
29 sq cm 2,900 sq mm
30 sq cm 3,000 sq mm
31 sq cm 3,100 sq mm
32 sq cm 3,200 sq mm
33 sq cm 3,300 sq mm
34 sq cm 3,400 sq mm
35 sq cm 3,500 sq mm
36 sq cm 3,600 sq mm
37 sq cm 3,700 sq mm
38 sq cm 3,800 sq mm
39 sq cm 3,900 sq mm
40 sq cm 4,000 sq mm

More Square Centimeter Area Conversions

US Customary
Convert to Square Miles
1 sq cm is equal to 3.861E-11 square miles
Convert to Acres
1 sq cm is equal to 2.4711E-8 acres
Convert to Square Yards
1 sq cm is equal to 0.00012 square yards
Convert to Square Feet
1 sq cm is equal to 0.001076 square feet
Convert to Square Inches
1 sq cm is equal to 0.155 square inches
SI Units
Convert to Square Kilometers
1 sq cm is equal to 1.0E-10 square kilometers
Convert to Square Meters
1 sq cm is equal to 0.0001 square meters
Other Metric Units
Convert to Hectares
1 sq cm is equal to 1.0E-8 hectares
Convert to Ares
1 sq cm is equal to 1.0E-6 ares