Square millimetres (mm² for short) and square centimetres (cm² for short) are units of measurement for very small areas. They are converted using a factor of 100, which means that 1 cm² is converted to 100 mm². Conversely, 1 mm² is exactly 0.01 cm².

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Table - mm2 in cm2

Square millimeter (mm2) Square centimeter (cm2)
1 mm2 0,01 cm2
100 mm2 1,00 cm2
10.000 mm2 100 cm2
50.000 mm2 500 cm2
100.000 mm2 1.000 cm2

Table - cm2 in mm2

Square centimeter (cm2) Square millimeter (mm2)
1 cm2 100 mm2
5 cm2 500 mm2
25 cm2 2.500 mm2
50 cm2 5.000 mm2
1.000 cm2 100.000 mm2

All information is without guarantee

Use calculator:

  • Select the area measurement you want to convert.
  • Enter the number of square millimeters or square centimeters in the calculator.
  • Click on "generate" to get the result.

Square millimetres are the unit of area that corresponds to the size of 1 millimetre by 1 millimetre. Conversely, this means that square centimetres are the unit of area for 1 centimetre by 1 centimetre.

To convert square millimetres to square centimetres, you simply have to divide the number of millimetres by 10. To do this, we must remember that 1 cm = 10 mm. So when converting, you multiply by a factor of 0.1 - or divide by 10.

Let's illustrate this with an example: If you want to calculate 4500 mm2, you have to divide this number by 10 and get 450 cm2 as the result. Another way to do this is to use a calculator. Simply enter the number of millimeters into the calculator and let it show you the result directly.

So to convert square millimetres to square centimetres, all you have to do is either divide the number of millimetres by 10 or multiply it by 0.1 and you have your result!

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