Aug 1, 2025 · Calculator online for a rectangle. Calculate the unknown defining areas, diagonals and angles with any three known variables. Online calculators and formulas for an rectangles and other …

Area of a rectangle calculator finds the area, perimeter, and diagonal of a rectangle.

Free online rectangle calculator – Calculate the area, perimeter, and diagonal of a rectangle with our easy-to-use Rectangle Calculator. Simply enter the length and width of the rectangle and get instant …

Calculate any property of a rectangle, including the area, perimeter, length, width, or diagonals using our rectangle calculator.

Easily calculate the area of any rectangle given its sides (length and width). Our area of rectangle calculator supports input in different metrics: inches, feet, yards, centimeters, millimeters, meters, etc.

Rectangle calculator finds area, perimeter, diagonal, length or width based on any two known values.

This area calculator determines the area of a number of common shapes, including rectangle, triangle, trapezoid, circle, sector, ellipse, and parallelogram.

Rectangle calculator, formula, work with steps, step by step calculation, real world and practice problems to learn how to find the area, perimeter & diagonal length of a rectangle in inches, feet, …

Calculate the sides, diagonal, perimeter and area of a rectangle. Enter the values that you know and let the tool calculate the rest.

Free Rectangle Area & Perimeter Calculator - calculate area & perimeter of a rectangle step by step