Convert square centimeter to square millimeter
1 cm² = 100 mm²
1 cm² = 100 mm²
1 cm² in every area unit
| microbarn | 1.0000e+30 μb |
| millibarn | 1.0000e+27 mb |
| barn | 1.0000e+24 b |
| square nanometer | 100,000,000,000,000 nm² |
| square micrometer | 100,000,000 μm² |
| circular mil | 197,350 cmil |
| thousand circular mils | 197.35 kcmil |
| square millimeter | 100 mm² |
| square centimeter | 1 cm² |
| square inch | 0.155 in² |
| square decimeter | 0.01 dm² |
| square foot | 0.0010764 ft² |
| square yard | 0.0001196 yd² |
| square meter | 0.0001 m² |
| tsubo | 0.00003025 tsubo |
| square rod | 0.0000039537 rd² |
| are | 0.000001 a |
| square chain | 2.4711e-07 ch² |
| dunam | 1.0000e-07 dunam |
| rood | 9.8842e-08 rood |
| acre | 2.4711e-08 ac |
| hectare | 1.0000e-08 ha |
| square kilometer | 1.0000e-10 km² |
| square mile | 3.8610e-11 mi² |
How the conversion works
Multiply by 100 to go from square centimeter to square millimeter, or divide by it to go back. Every conversion on this site routes through the SI value (m²) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? square millimeter to square centimeter — 1 mm² = 0.01 cm².
square centimeter to square millimeter — common values
| 1 cm² | 100 mm² |
| 2 cm² | 200 mm² |
| 3 cm² | 300 mm² |
| 5 cm² | 500 mm² |
| 10 cm² | 1,000 mm² |
| 15 cm² | 1,500 mm² |
| 20 cm² | 2,000 mm² |
| 25 cm² | 2,500 mm² |
| 50 cm² | 5,000 mm² |
| 75 cm² | 7,500 mm² |
| 100 cm² | 10,000 mm² |
| 250 cm² | 25,000 mm² |
| 500 cm² | 50,000 mm² |
| 1000 cm² | 100,000 mm² |