Hectares to acres (ha to ac) area units conversion factor is 2.47105381. To find out how many acres in hectares, multiply the hectare value by 2.47105381 or use the converter.
1 Hectare = 2.47105381 Acres
There are 2.47 acres in a hectare, because a hectare is defined as 100 ares (1 are is 100 m2) and equals to 10 000 sq. meters and acre is defined as an area of 1 chain by 1 furlong and equals to 4046.86 sq. meters, that makes 10000 / 4046.86 = 2.47 acres in a hectare.
For example, to find out how many acres there are in a hectare and a half of a land, multiply the hectare value by the conversion factor, 1.5 hectares * 2.47 = 3.7 acres in a hectare and a half land.
Hectare is a metric system area unit and defined as 100 ares (hectare comes from "hecto" + "are", means 100 ares). 1 are is a 10 meters by 10 meters square. 1 hectare is a 100 meters by 100 meters square and equals to 10 000 sq. meters or 107 639 sq. feet. 1 hectare is just about 2.5 times bigger than an acre. The abbreviation is "ha".
Acre is an imperial and US customary area unit and defined as an area of 1 chain by 1 furlong (66 feet * 660 feet). 1 acre equals to 43560 square feet, 4046.86 sq. meters and about 40% of a hectare. The abbreviation is "ac".