This free online calculator will help you to find the perimeter of a parallelogram.

Using this online calculator, you will receive a detailed step-by-step solution to your problem, which will help you understand the algorithm how to find parallelogram perimeter.

Calculator

Guide

Some theory

Calculation of parallelogram perimeter

Input lengths of parallelogram sides

a =

b =

Entering data into the perimeter of parallelogram calculator

You can input only integer numbers or fractions in this online calculator. More in-depth information read at these rules.

N.B. In online calculator you can use the value in the same units of measurement!

If you have any difficulties with units conversion, you can use the length converter.

Additional features of parallelogram perimeter calculator

Use and keys on keyboard to move between field in calculator.

Theory. Perimeter of parallelogram

Parallelogram is a convex quadrilateral with two pairs of parallel sides.

Perimeter of the parallelogram ABCD is equal to twice the sum of the sides adjacent to one corner

P = 2(a + b)

where P - perimeter of parallelogram,
a - lengths of first parallelogram side,
b - lengths of second parallelogram side.

You can input only integer numbers, decimals or fractions in this online calculator (-2.4, 5/7, ...). More in-depth information read at these rules.