how big is an acre in meters

An acre is equal to approximately 4046.86 square meters. To provide some context, an acre is a unit of area commonly used in North America and other countries, originally defined as the amount of land that could be ploughed in one day by a yoke of oxen. The shape of an acre can vary, but a square acre would measure about 63.6 meters on each side, as its area is about 4046.86 square meters.