Length is the longest dimension of your property
Width would be the shorter dimension of your property.
For example, an area that has a width of 500 feet, and a length of 700 feet would be calculated by multiplying 500 by 700. In this case the area is 350,000 square feet. Once you have the total size in square feet, meters or yards you need to convert this into acres. Multiplying length by width gives you the area, or the space inside the boundary of your property. Acreage is simply one measure of area. An easy way to remember the formula for area is A (area) = L (length) x W (width), which is the exact calculation done in this step.
1 acre = 4840 square yards. 1 acre = 43560 square feet. 1 acre = 4046. 8564 square meters. [1] X Research source
You can repeat this with the other units of measurement. 50,000 square feet is 1. 147 acres. 50,000 square meters is equivalent to 12. 35 acres. There are many online tools that can make this conversion for you if you have the size in an alternative unit of measurement. [2] X Research source [3] X Research source
In this case, calculating acreage gets more complex because you need to determine the area of a shape with often four different angles at each corner. A shape with four sides is known as a quadrilateral, and this not only includes right-angled shapes (like squares and rectangles), but also other shapes without right angles like kites, parallelograms, trapezoids or rhombuses. [4] X Research source . Since there are four types of quadrilaterals that are not squares and rectangles, there are also separate formulas for each type. For this reason, the easiest way to calculate the acreage of your property if it has an irregular shape is to use an online calculator. Your job is therefore to determine the inputs for the calculator. A Google search for “area of a quadrilateral” calculator will yield several results to choose. You may need to convert the results into acreage at the end (if the numbers you input are in square feet, yards, or meters).
Begin by designating the corners of your shape A, B, C and D. Start by marking one corner as A, and then go around the shape clockwise marking the other corners B, C and D. [5] X Research source
This could be an easier choice if you only have a surveyor’s wheel or tape measure.
If the results from the calculator are not in acres, use the conversion rates to convert them to acres from what ever unit you input into the calculator.
This would be most easily achievable if you have a clear and accurate map of the area you are trying to calculate the acreage of. It would be a good idea to try both methods for calculating acreage for an irregularly sized space and checking your results. This is simply the same process used in Method One, except you need to add the area of all the squares together at the end.
