To convert square centimeters to square millimeters, multiply the value by 100. To go the other way, multiply square millimeters by 0.01 to get square centimeters.
| Square Centimeters (cm²) | Square Millimeters (mm²) |
|---|---|
| 1 cm² | 100 mm² |
| 2 cm² | 200 mm² |
| 5 cm² | 500 mm² |
| 10 cm² | 1,000 mm² |
| 20 cm² | 2,000 mm² |
| 50 cm² | 5,000 mm² |
| 100 cm² | 10,000 mm² |
| 500 cm² | 50,000 mm² |
| 1,000 cm² | 100,000 mm² |
Square centimeter (cm²). A square centimeter is the area of a square with 1 cm sides, widely used in schools and for small surfaces.
Square millimeter (mm²). A square millimeter is the area of a square with 1 mm sides, used for small parts, wire and pipe cross-sections.
There are 100 square millimeters in one square centimeter.
Multiply the number of square centimeters by 100. For example, 10 square centimeters equal 1,000 square millimeters.
One square millimeter equals 0.01 square centimeters.