Area units calculator & converter tool
Hectare Conversions Table
Equivalent of 20 Hectare: |
| 200000 m2 (Square meter) |
| 2000000000 cm2 (Square centimeter) |
| 20000000 dm2 (Square decimeter) |
| 200000000000 mm2 (Square milimeter) |
| 0.2 km2 (Square Kilometer) |
| 2000 Are |
| 200 Decare |
| 200000 Centiare |
| 58.501 Arpent |
| 200000000 Barn |
| 2152780 Square feet |
| 49.421 Acre |
| 7907.38 Square perche |
| 0.07722 Square mil |
| 239198 Square yard |
| 310000925.51925 Square inch |
| 0.002146 Canton |
| 0.3088 Homestead |
| 197.68 Rood |
Hectare / Barn Units Definition
Hectare
hectare, unit of area in the metric system equal to 100 ares, or 10,000 square meters, and the equivalent of 2.471 acres in the British imperial system and the customary measurement of the United States. The term is derived from the Latin area and hect, an irregular contraction of the Greek word percent. Although the are is the primary metric unit of land measurement, the hectare is more commonly used in practice. The hectare is, by definition, equal to one djerib in Turkey, one jerib in Iran, one gong qing in mainland China, one manzana in Argentina and one bunder in the Netherlands.
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.