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Degrees:
The easiest way to calculate the number of acres in your land is to use the calculator above. If
you know the length and width, simply enter them. The calculator will provide the number of
acres, as well as the area in other units.
To calculate acres by hand, multiply your length and width (in feet) to get square feet. Try our
length converter if needed. Then divide by 43,560 to determine the size of the land in acres.
Example: Your city house lot is 33′ wide by 102′ long. How many acres do you have?
Unfortunately, property is not always divided into perfect squares, and finding the acreage of
irregular shapes can be a little more challenging.
The trick to finding the size of these irregular plots in acres is to break down the land into
smaller geometric shapes first. Find the size of those smaller spaces separately, and then add
them together.
Another great way to find the area of irregular shapes is to use the interactive map above to
determine the actual size in acres.
Keep in mind that sometimes property lines can be vague or off by several feet. If you need
precise measurements for something like fencing, always measure the land directly and do not go
off of reported acreage. While your plot may have been purchased as 1 acre, your actual property
lines could make it slightly bigger or smaller depending on how and when it was surveyed.
In addition, when installing things like fences, sometimes trees, large rocks, and other
landscaping irregularities will change the path of the fence. Always get precise measurements
before purchasing materials.
The calculator above will also give you the perimeter in linear feet, which you’ll need if you
plan on fencing in your property, as this is the most common way that fences are sold and
installed. The average acre has 835 linear feet around the perimeter for which to fence.
Note that this measurement can vary depending on your exact parcel size. To calculate this by
hand, you can measure each of the four sides individually in feet, and add them together.
To calculate the perimeter by hand, you can measure each of the sides individually, then add
them together. If you measured in feet, the result will be the perimeter in linear feet.