How many square feet are in one acre?

One acre is defined as a unit of area that is equal to 43,560 square feet. This measurement is commonly used in land management and agriculture. Understanding the size of an acre in square feet is crucial for various applications, such as calculating the amount of pesticide needed for a specific area, determining planting layouts, or managing turf maintenance. This figure is standardized and widely accepted, making it a fundamental concept in the field of ornamental and turf pest management and other areas of land use.