Area units calculator & converter tool
Perche2 Conversions Table
Equivalent of 5 Square perche: |
126.46413856423 m2 (Square meter) |
1264641.3856423 cm2 (Square centimeter) |
12646.413856423 dm2 (Square decimeter) |
126464138.56423 mm2 (Square milimeter) |
0.00012646413856423 km2 (Square Kilometer) |
0.012646413856423 Hectare |
1.2646413856423 Are |
0.12646413856423 Decare |
126.46413856423 Centiare |
0.036991392850729 Arpent |
126464.13856423 Barn |
1361.2473410915 Square feet |
0.031249920959913 Acre |
4.8827803899648E-5 Square mil |
151.24984508143 Square yard |
196019.99999953 Square inch |
1.3569602067942E-6 Canton |
0.00019526062994317 Homestead |
0.12499715455688 Rood |
Perche2 / Barn Units Definition
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.
Barn
A barn (symbol: b) is a metric unit of area equal to 10-28 m2 (100 fm2). Originally used in nuclear physics to express the cross section of nuclei and nuclear reactions, it is also used today in all areas of high energy physics to express the cross sections of any diffusion process, and is best understood as a measure of the probability of interaction between small particles. A barn corresponds approximately to the cross section of a uranium nucleus. The barn is also the unit of area used in nuclear quadrupole resonance and nuclear magnetic resonance to quantify the interaction of a nucleus with an electric field gradient. Although the barn was never an SI unit, the SI standards body recognized it in the 8th SI brochure (replaced 2019) due to its use in particle physics.