# Perimeter Calculators

Calculate Perimeter Of a Square

Perimeter = 4 x Length

Length:

Result:

Area of a Triangle:

Calculate Perimeter Of a Rectangle

Perimeter = 2 ( Base ) + 2 ( Height )

Base:
Height:

Result:

Calculate Perimeter Of a Rectangle:

Calculate Perimeter of a Triangle

Perimeter = a + b + c

Length (a):
Length (b):
Length (c):

Result:

Perimeter of a Triangle:

Calculate Perimeter Of a Parallelogram

Perimeter = 2 ( Base ) + 2 ( Height )

Base:
Height:

Result:

Perimeter Of a Parallelogram:

Calculate Perimeter Of a Rhombus

Perimeter = 4 x Length

Length:

Result:

Perimeter Of a Rhombus:

Calculate Perimeter Of a Trapezium

Perimeter = a + b + c + d

Length (a):
Length (b):
Length (c):
Length (d):

Result:

Perimeter Of a Trapezium:

Calculate Perimeter Of a Ellipse

Perimeter = 2 x π x √(r12+r22) / 2

Result:

Perimeter Of a Ellipse:

Calculate Perimeter of Polygon

Perimeter = Number Of Sides x Length

Number Of Sides:
Length:

Result:

Perimeter of Polygon:

Online Perimeter Calculators

The online perimeter calculator supports calculating the perimeter of circles, sectors, ellipses, triangles, squares, rectangles, quadrilaterals and other shapes, and displays the perimeter calculation formulas and schematic diagrams of the corresponding shapes.

Instructions for use
The online perimeter calculator calculates the perimeter of various shapes and displays the calculation formula for the perimeter of the corresponding shape.

Shape: Choose what shape's perimeter is calculated. This tool supports calculating the perimeter of circles, sectors, ellipses, triangles, squares, rectangles, parallelograms, quadrilaterals, trapezoids and other shapes, and displays schematic diagrams and formulas for calculating the perimeter of the corresponding shapes.
After selecting the corresponding shape, please enter the corresponding parameters as required. Click Calculate to get the corresponding circumference result. Please follow the parameter prompts and input the parameters correctly.
The calculated perimeter has no specific units, and the perimeter unit depends on the units of the input parameters.

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