Education

Right Triangle Calculator

Enter two sides of a right triangle to find the third side, both acute angles, the area and the perimeter.

Math

Right triangle (Pythagoras)

Live result

Enter any two sides; leave the unknown side empty.

Good to know

Frequently asked questions

Is my data uploaded?

No. Everything is calculated in your browser and nothing you enter is sent to a server. No account is needed.

Do I need an account?

No. Right Triangle Calculator is free to use without signing up.