In 1795 the French Revolutionary Government established the metric system. The unit for length was measured in ‘metre’ and area of land as ‘are.’ However there was no practical way to measure this units. In the year 1889, ‘General Conference on Weights and Measures (CGPM)’ took ‘Convention of the Metre’ under its jurisdiction and ‘are’ later known as hectare was defined.
Hectare unit is often used in urban regions across country . 1 Hectare is approximately about 2.47105 acres. But the SI( International System of Units) which was established in 1960 does not include this unit, however it is still used as a measurement unit while dealing in land measured in terms of area. It derives name from ‘ Hecto’ which is 100 and ‘are’ which is area, so 1 hectare is 10,000 Sq.metres i,e 100 m X 100m.