Pythagorean Theorem Calculator Guide
Use this calculator to find the missing side of a right triangle.
Important Note
Make sure the values you enter describe a right triangle.
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Pythagorean Theorem Calculator
Pythagorean theorem calculator for solving triangle side lengths and the hypotenuse.
Geometry
Fast Calculation
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Pythagorean Theorem Calculator
Enter two known sides to calculate the missing side of a right triangle.
Result
0
Ready to calculate
Working
Formula
a² + b² = c², where c is the hypotenuse of a right triangle.
Use Case
Useful for geometry, construction, and right-triangle problems.
Tip
Enter the hypotenuse field only when you want to solve for a missing leg.