How to Find The Perimeter of a Square

Calculating the area of a square using its perimeter is easy.
••• Jupiterimages/Photos.com/Getty Images

The perimeter is the distance around the outside of the square, and not the area, which is the space inside of the square. Knowing the perimeter is useful in a number of disciplines, including construction. Fortunately, finding the perimeter of a square is a straightforward operation that can be achieved in a few short steps.

    Make sure the shape is a square. All four sides on a square are exactly the same size, and all four angles are right angles, or 90 degrees.

    Find the length of any one side of the square; it doesn't matter which side, because they are all the same size. You can use a ruler to do this, but make sure to keep track of the units you used, such as inches or centimeters.

    Take the measurement of the side and multiply it by 4. You can use a calculator to do this. Alternatively, take the side length and add it to itself 3 times. Either operation will yield the perimeter. For example, if you've measured the side of the square to be 18 inches:

    18 * 4 = 72; or

    18 + 18 + 18 + 18 = 36 + 36 = 72

    The perimeter is therefore 72 inches.

Related Articles

How to Find the Area of Squares
How to Measure the Length of the Diagonal Line of a...
How to Calculate Diagonal Distance Between Corners...
How to Calculate Sides of a Triangle
How to Calculate the Radius of a Square
How to Find the Circumference of an Octagon
How to Calculate the Length of Octagon Sides
How to Find the Area & Width of a Rectangle
How to Find the Area of a Shaded Part of a Square With...
How to Find the Area of a Square Using Its Perimeter
How to Find the Perimeter of a Right Triangle
How to Convert Square Dimensions to Round
The Area of an Inscribed Square
How to Calculate the Linear Footage in a Radius
How to Calculate Perimeter and Area Ratio
How to Convert the Area of a Circle to Square Feet
How to Calculate Area From Width & Length
How to Calculate the Perimeter of a Diamond
How to Calculate the Apothem of a Polygon
How to Find the Radius of an Ellipse