Right Triangle Calculator
Find the hypotenuse, area, and angles from two legs.
Solve a right triangle
A right triangle is fixed by its two legs: from them the hypotenuse, area, and both acute angles all follow. This calculator applies the Pythagorean theorem and basic trigonometry.
Legs of 3 and 4 give a hypotenuse of 5, an area of 6, and angles of about 36.87 and 53.13 degrees. Enter your own legs for the full solution.
Complete and private
The calculation runs in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
What does it calculate?
From the two legs, it finds the hypotenuse by the Pythagorean theorem, the area, and the two acute angles.
What is the hypotenuse?
The longest side, opposite the right angle, equal to the square root of the sum of the squared legs.
What units are the angles?
Degrees. The two acute angles always add up to 90.
Browse the full set of free, private, in-browser tools.