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In a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides: a² + b² = c².

Calculate the hypotenuse or a missing leg of a right triangle with the Pythagorean theorem a² + b² = c².

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Calculate the hypotenuse or a missing leg of a right triangle with the Pythagorean theorem a² + b² = c².

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Do I need to sign up?: No. The tool works without an account.
Are my data uploaded?: Compatible operations run locally in the browser.
What is the Pythagorean theorem?: In a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides: a² + b² = c².