Convert Acre to Square Meter

The acre has its origins in medieval England, where it was used as a unit of area for measuring land, particularly for agricultural purposes. The term "acre" comes from the Old English word "aecer", which referred to a field or a piece of land. The unit was historically defined as the area that could be plowed in one day by a team of oxen. The standard definition of an acre as 43,560 square feet was established in the 18th century, and it has been widely adopted in countries that use the imperial or U.S. customary systems. Despite the global adoption of the metric system, the acre remains a standard unit for land measurement in the United States and other regions that follow imperial units.

The square meter derives from the meter, which is the base unit of length in the SI system. The meter was originally defined in the late 18th century during the French Revolution as one ten-millionth of the distance from the equator to the North Pole. With the introduction of the meter, the square meter was naturally established as the unit for area. The square meter has since become the standard unit for area measurement in scientific, engineering, and everyday applications, reflecting the metric system's widespread use globally.