Enter the length and width, enter the calculation accuracy and click on "Calculate". Calculator will calculate the length of the perimeter of the rectangle.
Rectangle is any quadrilateral with four right angles. Opposing sides of the rectangle are equal. It is a special case of a parallelogram.
The length of a rectangle is the length of the longer pair of its sides, and the width — length of the shorter sides of the pair.
The perimeter of a rectangle is equal to twice the sum of the lengths of its width and length.