100 Acres to Hectares
Result
100 ac = 40.4686 ha
100 ac = 40.4686 ha
How to Convert acres to hectares
To convert acres to hectares, multiply the value by the conversion factor:
Reverse: 40.4686 hectares = 100 acres
Reverse: 40.4686 hectares = 100 acres
hectares to acres converterAbout These Units
acres (ac)
The acre's origins are agricultural: it was originally defined as the amount of land a yoke of oxen could plow in a single day. This 'furlong' (furrow long) by 'chain' definition standardized land ownership in medieval England. Today, the acre remains the king of land measurement in the US and UK. There are 640 acres in a square mile.
An American football field (including end zones) is about 1.32 acres.
Commonly used in: US Farm land, Residential lots (US), Public parks (US/UK), Golf courses, Deforestation stats (US media).
hectares (ha)
The hectare (ha) is the primary unit for measuring land in the metric world. Derived from 'hecto' (hundred) and 'are' (a historical unit of 100 m²), a hectare is 100 ares, or 10,000 square meters. It is approximately 2.47 acres. It is the language of international agriculture, forestry, and rural planning.
A standard international rugby field is roughly 1 hectare.
Commonly used in: Farm sizes, Vineyards, Forestry management, Real estate (Europe/Asia), Wildfire reporting.