Area units calculator & converter tool
Acre Conversions Table
Equivalent of 2 Acre: |
8093.7253394306 m2 (Square meter) |
80937253.394306 cm2 (Square centimeter) |
809372.53394306 dm2 (Square decimeter) |
8093725339.4306 mm2 (Square milimeter) |
0.0080937253394306 km2 (Square Kilometer) |
0.80937253394306 Hectare |
80.937253394306 Are |
8.0937253394306 Decare |
8093.7253394306 Centiare |
2.3674551304101 Arpent |
8093725.3394306 Barn |
87120.050181097 Square feet |
320.00080937253 Square perche |
0.0031249873535542 Square mil |
9680.0145687056 Square yard |
12545311.730611 Square inch |
8.684567289209E-5 Canton |
0.012496711924081 Homestead |
7.9998381254932 Rood |
Acre / Barn Units Definition
Acre
The acre (/ˈeɪkər/ AY-kər) is a unit of land area used in the British imperial and the United States customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square chains, 1⁄640 of a square mile, 4,840 square yards, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a hectare. Based upon the international yard and pound agreement of 1959, an acre may be declared as exactly 4,046.8564224 square metres. The acre is sometimes abbreviated ac but is usually spelled out as the word "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.