Diagonal Calculator
Calculate the diagonal of a rectangle or square using the Pythagorean theorem. Input the width and height to get the diagonal length.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
Previous Results
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Frequently Asked Questions
The diagonal d of a rectangle with width w and height h is given by d = √(w² + h²), derived from the Pythagorean theorem.
Yes. For a square, width and height are equal. The diagonal is side × √2.
The calculator works with any units as long as width and height are in the same unit. The result will be in that same unit.
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