1 square meter is equal to 1000000 mm^2, or 10000 cm^2 . Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between square millimeters and square centimeters. Type in your own numbers in the form to convert the units! Quick conversion chart of mm^2 to cm^2 1 mm^2 to cm^2 = 0.01 <b>cm^2</b>. Answer (1 of 3): A centimeter is 10 milimeters and there are 100 centimeters in a meter. Centimeter. Definition: A centimeter (symbol: cm) is a unit of length in the International System of Units (SI), the current form of the metric system. It is defined as 1/100 meters. History/origin: A centimeter is based on the SI unit meter, and as the prefix "centi" indicates, is equal to one hundredth of a meter. Metric prefixes range from factors of 10-18 to 10 18 based on a decimal system. Convert from Cubic centimeters to Cubic millimeters. Type in the amount you want to convert and press the Convert button. Belongs in category. Volume. To other units. Conversion table. For your website. cm³ Cubic centimeters to Bushels (UK) bu. bu Bushels (UK) to Cubic centimeters cm³. A centimeter is exactly ten millimeters. Use a ruler and find out how you can measure to the nearest cm and convert that number to mm. A centimeter is exactly ten millimeters.