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    Area & Drawings

    Rectangle Diagonal Calculator

    Rectangle Diagonal Calculator performs a browser-local calculation using measurements and quantities you control. The results are presented as labelled figures so each number is easy to interpret. All corners must be right angles; a skewed quadrilateral gives a different diagonal.

    MAKE IT SIMPLE
    Formula assumptions and scope

    All corners must be right angles; a skewed quadrilateral gives a different diagonal.

    Result

    Worked examples

    Rectangle width (m): 3, Rectangle height (m): 4

    Diagonal: 5 m

    Using these sample input values gives the first labelled output above. All corners must be right angles; a skewed quadrilateral gives a different diagonal.

    Questions & answers

    Can I use the default numbers for purchasing or safety certification?

    No. Replace the examples with your real values. All corners must be right angles; a skewed quadrilateral gives a different diagonal.

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