How many square feet are in one acre?

One acre is defined as a unit of area measurement that is commonly used in the United States and other countries that follow the imperial system. The correct conversion reveals that one acre consists of 43,560 square feet. This number is derived from the dimensions of an acre being commonly understood as a rectangle that is 1 chain (66 feet) wide and 10 chains (660 feet) long, which totals 43,560 square feet when calculated.

This specific measurement is significant in land appraisal and real estate, as it provides a standardized understanding of size and helps compare parcels of land effectively. Understanding this measurement is essential for those involved in land transactions and appraisals, as it's foundational for determining property value and land use.