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 do not use the metric system. Specifically, one acre is equivalent to 43,560 square feet. This measurement is standardized and applies universally, making it a reliable figure for various calculations related to land area. Understanding this conversion is essential, especially in contexts like agriculture and pesticide application, where land measurements are frequently needed.

The other options present figures that do not represent the actual size of an acre. Familiarity with these measurements is vital for proper planning and execution of farming, landscaping, and other outdoor projects where land area is a key factor. Thus, recognizing that 43,560 square feet is the correct conversion for an acre is crucial for anyone involved in these activities.