How many square feet are in an acre?

An acre is a unit of area commonly used in the United States and other countries that use the imperial system of measurements. Specifically, one acre is defined as being exactly 43,560 square feet. This measurement has historical significance and remains widely used in various applications, including land measurement for agricultural, residential, and commercial properties.

Understanding the size of an acre in square feet is essential, particularly in contexts related to land management and agriculture. Accurate knowledge of this measurement helps professionals in fields such as farming, landscaping, and pest control management when planning treatments, calculating needs for resources, or determining land use. The other options do not align with the defined measurement for an acre, reinforcing the importance of knowing this standard figure in practical applications.