Area units calculator & converter tool
Mm2 Conversions Table
Equivalent of 20 mm2 (Square milimeter): |
2.0E-5 m2 (Square meter) |
0.2 cm2 (Square centimeter) |
0.002 dm2 (Square decimeter) |
2.0E-11 km2 (Square Kilometer) |
2.0E-9 Hectare |
2.0E-7 Are |
2.0E-8 Decare |
2.0E-5 Centiare |
5.8501E-9 Arpent |
0.02 Barn |
0.000215278 Square feet |
4.9421E-9 Acre |
7.90738E-7 Square perche |
7.722E-12 Square mil |
2.39198E-5 Square yard |
0.031000092551925 Square inch |
2.146E-13 Canton |
3.088E-11 Homestead |
1.9768E-8 Rood |
Mm2 / Dm2 Units Definition
mm2 (Square milimeter)
Unit of area measurement equal to a square with a side of one millimeter. Abbreviations: mm2, mm².
dm2 (Square decimeter)
Therefore, a square decimeter (or "square decimeter" in British spelling) is one tenth of a square meter. It can also be expressed by ten square centimeters. A rough example of a decimeter could be the average surface area of some smartphone screens.