How to Convert a Square Foot to Acreage

The size of farms is often measured in acres.

Area represents a two-dimensional space, such as a plot of land. Units of measure for area include square feet and acres. According to the University of North Carolina, the acre was originally defined as the amount of land that could be plowed by a team of oxen in one day. In more modern times, however, the acre has been defined by specific measurements, making it easy to convert between different units of area.

Things You'll Need

• Calculator

Instructions

1. Calculate the number of square feet by multiplying the length in feet by the width in feet. For example, if your property measures 400 feet long by 330 feet wide, you would multiply 400 by 330 to get 132,000 square feet.

2. Divide the number of square feet by 43,560 to convert to acres. In this example, you would divide 132,000 square feet by 43,560 square feet per acre to get about 3.03 acres.

3. Multiply the number of acres by 0.0000229568411387 as an alternative way to check your conversion. Finishing the example, you would multiply 132,000 square feet by 0.0000229568411387 acres per square foot to get about 3.03 acres.

Tips & Warnings

• Want to know how many hectares you have? Divide the number of square feet by 107,639.

References

• University of North Carolina: Units: A
• CSG Networks: Convert Acres to Square Feet