This free online calculator will help you to find the area of a rectangle.

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 rectangle area.

Calculator

Guide

Some theory

Calculation of Rectangle Area

Input lengths of rectangle sides: a = b =

Entering data into the rectangle area 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!