How to Calculate Lot Area

If you are buying or selling of real estate, conducting a survey or planning landscaping projects you'll need accurate calculations of a parcel of land or a lot. Although there are irregularly shaped lots that require more complicated calculations, by far the most common lots are rectangular shape. Follow the steps below to calculate the area of a simple rectangle-shaped lot.

Instructions

1. Measure the length of one side of the lot in feet. We'll call this value "x".

2. Obtain the length of the side that forms a 90-degree angle with side "x" in feet. We'll call this value "y."

3. Substitute the values for "x" and "y" into the following equation:
   x * y = A

4. Perform the calculation of the equation, the resulting value is "A," which equals the area of the lot in square feet.

5. Divide the value for "A" by the number 43,560 in order to calculate the lot area in acres.

Tips & Warnings

• Irregular shaped lots can often be divided into smaller rectangles. Calculate the area of the rectangles individually and then add them together for the total area.

References

• There are 43.56 one thousand square feet in an acre; an acre has 43,560 square feet.

Resources

• Area Calculator for Irregular Shaped Lots