Area units calculator & converter tool
Mm2 Conversions Table
Equivalent of 1 mm2 (Square milimeter): |
1.0E-6 m2 (Square meter) |
0.01 cm2 (Square centimeter) |
0.0001 dm2 (Square decimeter) |
1.0E-12 km2 (Square Kilometer) |
1.0E-10 Hectare |
1.0E-8 Are |
1.0E-9 Decare |
1.0E-6 Centiare |
2.92505E-10 Arpent |
0.001 Barn |
1.07639E-5 Square feet |
2.47105E-10 Acre |
3.95369E-8 Square perche |
3.861E-13 Square mil |
1.19599E-6 Square yard |
0.0015500046275963 Square inch |
1.073E-14 Canton |
1.544E-12 Homestead |
9.884E-10 Rood |
Mm2 / Perche2 Units Definition
mm2 (Square milimeter)
Unit of area measurement equal to a square with a side of one millimeter. Abbreviations: mm2, mm².
Square perche
A square perch (often shortened to just a perch) is a unit of measurement and is equal to 25.29285264 square metres. Confusingly, a perch (not the squared
variety) is also called a rod or pole because it’s based on a surveyor’s tool
measuring exactly 5½ yards or 16½ feet or ¼ of a surveyor’s chain. The perch or rod was helpful tool and measurement for a surveyor because it could be used to create a ‘perfect’ acre of 40 perches by 4 perches – remember 160 perches equals an acre.