Conversion Table
square centimeter
to square millimeters Conversion Table: 
sq cm to sq mm
1.0 = 100
2.0 = 200
3.0 = 300
4.0 = 400
5.0 = 500
6.0 = 600
7.0 = 700
8.0 = 800
9.0 = 900 
square centimeter
to square millimeters
10 = 1000
20 = 2000
30 = 3000
40 = 4000
50 = 5000
100 = 10000
500 = 50000
1000 = 100000
5000 = 500000 
square millimeters
to square centimeters Conversion Table: 
sq mm to sq cm
1.0 = 0.01
2.0 = 0.02
3.0 = 0.03
4.0 = 0.04
5.0 = 0.05
6.0 = 0.06
7.0 = 0.07
8.0 = 0.08
9.0 = 0.09

square millimeters
to square centimeters
10 = 0.1
20 = 0.2
30 = 0.3
40 = 0.4
50 = 0.5
100 = 1
500 = 5
1000 = 10
5000 = 50

The square centimeter (plural form: square centimeters; British spelling: square centimetre; abbreviation: sq cm or cm^{2}) is a unit of area used in SI system (Metric System). One square centimeter = 100 square millimeters = 0.0001 square meters = 0.000119599005 square yards = 0.15500031 square inches (sq in). 