Area units calculator & converter tool
Acre Conversions Table
Equivalent of 11 Acre: |
44515.489366868 m2 (Square meter) |
445154893.66868 cm2 (Square centimeter) |
4451548.9366868 dm2 (Square decimeter) |
44515489366.868 mm2 (Square milimeter) |
0.044515489366868 km2 (Square Kilometer) |
4.4515489366868 Hectare |
445.15489366868 Are |
44.515489366868 Decare |
44515.489366868 Centiare |
13.021003217256 Arpent |
44515489.366868 Barn |
479160.27599603 Square feet |
1760.0044515489 Square perche |
0.017187430444548 Square mil |
53240.080127881 Square yard |
68999214.518358 Square inch |
0.0004776512009065 Canton |
0.068731915582445 Homestead |
43.999109690213 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.