Area units calculator & converter tool
Cm2 Conversions Table
Equivalent of 4 cm2 (Square centimeter): |
0.0004 m2 (Square meter) |
0.04 dm2 (Square decimeter) |
400 mm2 (Square milimeter) |
4.0E-10 km2 (Square Kilometer) |
4.0E-8 Hectare |
4.0E-6 Are |
4.0E-7 Decare |
0.0004 Centiare |
1.17002E-7 Arpent |
0.4 Barn |
0.00430556 Square feet |
9.8842E-8 Acre |
1.581476E-5 Square perche |
1.5444E-10 Square mil |
0.000478396 Square yard |
0.6200018510385 Square inch |
4.292E-12 Canton |
6.176E-10 Homestead |
3.9536E-7 Rood |
Cm2 / Perche2 Units Definition
cm2 (Square centimeter)
The square centimeter is a unit of area in the International System of Units (SI). The abbreviation for square centimeter (or square centimeters) is "cm2". The square centimeter is a derived (or compound) unit in the SI. A square centimeter is an area equivalent to the area formed by a square measuring 1 cm by 1 cm.
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.