Math

Pythagorean Theorem Calculator

Find the hypotenuse or missing leg of a right triangle using a² + b² = c². Enter any two sides.

Using the Pythagorean Theorem Calculator

The Pythagorean theorem states that in a right-angled triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. This calculator allows you to solve for any missing side (a, b, or c) instantly.

How it Works

Enter the lengths of the two sides you know.

Leave the field for the unknown side blank.

Press Calculate to find the missing dimension.

Review the "Calculation Steps" to see the formula application.

Technical Formula


                        a² + b² = c²

Leg a

Leg b