Perimeters Calculator
Square
Side =
Square's Perimeter =
Rectangle
Length =
Width =
Rectangle's Perimeter =
Triangle
Base =
Side 1 =
Side 2 =
Triangle's Perimeter =
Trapezoid
Base =
Side 1 =
Top =
Side 2 =
Trapezoid's Perimeter =
Polygon
Sides = 8
Length =
Polygon's Perimeter =
Circle
Diameter =
Circle's Perimeter =
Help
Calculate the perimeter of triangles, squares, rectangles, trapezoids, polygons, and circles. Inputs and results are in any available length unit. For results, select the row and choose an alternative unit type.
Square
- Side: Length of the side of the square
Rectangle
-Length: Length of the rectangle
-Width: Width of the rectangle
Triangle
- Base: Length of the triangle's base
- Side 1: Length of one side of the triangle
- Side 2: Length of the other side of the triangle
Trapezoid
- Base: Length of the trapezoid's base
- Side 1: Length of one side of the trapezoid
- Top: Length of the trapezoid's top
- Side 2: Length of the other side of the trapezoid
Polygon
- Sides: Number of sides to this polygon
- Length: Length of one side of the polygon
Circle
- Diameter: Diameter of the circle
Examples
The room is 10' by 15'. How many linear feet of trim are needed?
In the Rectangle section:
- Length: 10ft
- Width: 15ft
This room required 50ft of trim. If the result is not in feet, select the Rectangle's Perimeter row and choose ft.
Keywords
Side
Square's Perimeter
Length
Width
Rectangle's Perimeter
Base
Side 1
Side 2
Triangle's Perimeter
Base
Side 1
Top
Side 2
Trapezoid's Perimeter
Sides
Length
Polygon's Perimeter
Diameter
Circle's Perimeter
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