The online calculator allows to calculate the perimeter of a rectangle from its length and its width.

The calculator is able to **calculate online the perimeter of a rectangle**.
The **perimeter of a rectangle** is given by the formula `2*(L+l)` where L represents the length and l the width of a side.
The **perimeter of a rectangle** is equal to the sum of the sides.
The length calculator supports numeric but also literal expressions.

The length calculator is able to calculate the perimeter of a rectangle, the calculated length is returned in exact form and in approximate form.

The **calculation of the perimeter of a rectangle** whose length is 3 and width is 2 is done
by entering the following formula
perimeter_rectangle(`3;2`).

The length calculator is able to do symbolic calculations or literal calculation. To calculate, for example, the perimeter of a rectangle whose length is 1+x and width is 1+y, just enter the following formula perimeter_rectangle(`1+x;1+y`) ,after calculating the result is returned.

perimeter_rectangle(length;width)

perimeter_rectangle(`3;2`), returns 12

See also

- Area of a square : area_square. Area online calculator that can calculate the area of a square from the length of a side.
- Area of a circle : area_circle. Area online calculator that can calculate the area of a circle from its radius or from its diameter.
- Area of a rectangle : area_rectangle. Area online calculator that can calculate the area of a rectangle from its length and its width.
- Find equation of a straight line from two points : equation_straight_line. The equation straight line calculator allows to calculate the equation of a straight line from the coordinates of two points with step by step calculation.
- Perimeter calculator : perimeter. Online perimeter calculator that calculates rectangle perimeter, square perimeter, triangle perimeter or circle perimeter.
- Perimeter of a square : perimeter_square. The online calculator allows to calculate the perimeter of a square from the length of a side.
- Perimeter of a circle : perimeter_circle. Online calculator that calculates the perimeter of a circle from its radius.
- Perimeter of a rectangle : perimeter_rectangle. The online calculator allows to calculate the perimeter of a rectangle from its length and its width.
- Pythagorean theorem calculator : pythagorean. The calculator uses the Pythagorean theorem to verify that a triangle is right-angled or to find the length of one side of a right-angled triangle.
- Calculation of the area of a geometric figure. : area. Online area calculator which allows to calculate the area of a rectangle, square, triangle or circle.
- Volume of a cube : volume_cube. The online calculator allows to calculate the volume of a cube from the length of a side.
- Volume of a rectangular parallelepiped : volume_rectangle. The online calculator allows to calculate the volume of a rectangle from its length, its width and height.
- Volume of a sphere : volume_sphere. The online calculator allows to calculate the volume of a sphere from its radius.