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Pythagorean Theorem Calculator

Find a right triangle's missing leg or hypotenuse.

Your inputs

Your result

Enter your information and select Calculate to see the result.

How this calculator works

For a right triangle, a² + b² = c².

Change one assumption at a time to see which inputs have the greatest effect on the estimate.

Worked example

Legs 3 and 4 produce hypotenuse 5.

Limitations

This calculator is for educational use; verify important work independently.

Review this educational estimate against current quotes, official information, and your own budget before making a financial decision.