Hypotenuse Calculator
Calculate the hypotenuse of a right triangle from its two perpendicular sides.
Formula and assumptions
Assumes a and b are perpendicular sides and use the same unit.
Results depend on the inputs and assumptions shown. Check units and independently verify important decisions.
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Frequently asked questions
How do you calculate a hypotenuse?
For a right triangle with perpendicular sides a and b, use c = √(a² + b²). The hypotenuse is the side opposite the right angle.
Can I use this for a triangle without a right angle?
No. The Pythagorean theorem applies to right triangles. A non-right triangle requires different information and a different method.
What units does the result use?
The hypotenuse uses the same length unit as the two side inputs, provided both inputs use the same unit.