Calculator for Right Angles and Hypotenuse

A right triangle is fully defined by just two of its measurements. Enter any two known values, such as sides or angles, into the calculator below and it will instantly calculate everything else: the hypotenuse, both acute angles, the altitude from the right angle to the hypotenuse, area, perimeter, and the radii of both the inscribed and circumscribed circles.

Right triangle calculator — enter any two side or angle values to compute all triangle properties

Right triangle calculator

Enter any two known values (sides or acute angles) to solve all properties.

a Side a (opposite)

b Side b (adjacent)

c Hypotenuse c

α Angle α (opposite a) °

β Angle β (opposite b) °

Results

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Diagram