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.

The rectangle solver finds missing width, length, diagonal, area or perimeter of a rectangle. The calculator accepts all types of input values, including fractions and square roots, and provides step …

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 …

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Definition: This calculator computes the area, perimeter, and diagonal of a rectangle using its length (l) and width (w). A rectangle is a quadrilateral with opposite sides equal and all angles equal to 90°.

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

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

Use this rectangle calculator to quickly find length, width, perimeter, area, and diagonal. Input any two parameters to calculate the rest.

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.