Pythagorean Theorem Calculator

Pythagorean Theorem Calculator

Solve a right triangle when any two side lengths are known.

Solve a right triangle

Enter any two side lengths and leave the unknown side blank.

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Enter exactly two sides.

Formula

For a right triangle, c squared equals a squared plus b squared.

Worked example

With legs 3 and 4, the hypotenuse is 5.

Privacy

The calculation runs locally in the browser.

Limitations

This calculator applies only to right triangles. The entered lengths must form a valid right triangle.

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