# Perimeter Calculator

Perimeter can be defined as the length around a two dimensional object. It would be the border of an area or the outline. Our perimeter calculator can you determine the perimeter for several various shapes including: square, rectangle, triangle, ellipse, parallelogram, trapezoid, polygon, and rhombus.

When you think about perimeter try to imagine a piece of rope or string stretched around the outer edges of the shape. The length of the rope or string would be the perimeter. Say you were going to put up a privacy fence around your back yard. If you wanted to know how long the fence would need to be, you would need to know the perimeter. You could stretch a piece of rope around the entire yard, then measure the length of the rope. This could be tedious and it might be difficult to find enough rope. It would be easier to just use our calculator to find the perimeter you are looking for.

Depending on what shape you are measuring for, all you need is a few simple measurements. Simply select the shape you are using, then enter the required information in the form fields. Our calculator will do the calculations for you. If you are trying to measure the perimeter and don’t have access to this calculator just remember that perimeter is the length of all the sides of a shape or the distance around the shape. If you are measuring the perimeter of a square then all you need to do is measure one side, the multiply that measurement by four. This will give you the total length around the square.