๐ Geometry
Pythagorean Theorem Calculator
In a right triangle the square of the hypotenuse equals the sum of the squares of the other two sides. Enter any two sides and the third follows immediately.
How it works
Side a
Side b
Hypotenuse c (leave 0 to solve for it)
Hypotenuse c
Side a
Side b
Area
Perimeter
Frequently asked questions
How do I use the Pythagorean Theorem Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.