Calculate the hypotenuse (longest side) of a right angled triangle.

Online Hypotenuse Calculator

Do you need to calculate the length of the longest side of a triangle? The hypotenuse is the longest side of a right angled triangle with an angle of 90 degrees.

To calculate the length of the hypotenuse of a triangle, we can use the following formula c = √(a² + b²). In the formula is C the hypotenuse. A and B are the 2 shortest straight sides connected to the right 90 degrees angle.

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Calculate Hypotenuse triangle

Enter the 2 shortest sides of a right angled triangle (with an angle of 90 degrees) to calculate the third longest side (hypotenusa).

Hypotenuse = √(a² + b²)

What is a Hypotenuse Calculator?

Hypotenuse Calculator is an online tool where you can quickly calculate the hypotenuse (longest side) of a right angled (90deg) triangle by entering the 2 sides that are connected to the 90 degrees corner.

The Hypotenuse is calculated with the following formula: c = √(a² + b²). Hereby is C the hypotenuse. A and B are the 2 shortest straight sides of the triangle.

How to use the Hypotenuse Calculator?

You can use the online Hypotenuse Calculator by entering the 2 sides that are next to the 90 degrees corner of the triangle.

The hypotenuse is the longest side of the triangle, but only for right angled triangles.

Frequently Asked Questions

You can find answers of frequently asked questions about our tool in the list below. Is your specific question not in the list? Please send us a message via Facebook or Instagram.

The formula to calculate the hypotenuse is "c = √(a² + b²)" where C is the hypotenuse. The formula only works for triangles that are right angled (angle of 90 degrees).

JavaScript has a built-in function to calculate the hypotenuse "Math.hypot()". For more information about this function you can visit MDN Math.hypot().