» Pythagorean Theorem Calculator

Input

Choose the side to find and enter the other two sides.

Input
5.00

Right triangle diagram

Results

Sides

Leg a
Leg b
Hypotenuse c

Angles

Angle Ξ±
Angle Ξ²
Angle Ξ³

Key measurements

Area A
Perimeter P
Semiperimeter s

Additional measurements

Altitude h𝑐
Inradius r
Circumradius R
Median mₐ
Median mᡦ
Median m𝑐
$$a^{2}+b^{2}=c^{2}\Leftrightarrow c=\sqrt{a^{2}+b^{2}}$$

This Pythagorean theorem calculator finds the missing leg or hypotenuse of a right triangle when two sides are known. Choose the side to find, enter the other two and check the formula, angles and diagram alongside the result.