Math Calculators

45-45-90 Triangle Calculator

Find the hypotenuse of a 45-45-90 right triangle given the length of one equal leg, in the unit of your choice.

Other leg (equal) —

Hypotenuse —

About the 45-45-90 Triangle Calculator

A 45-45-90 triangle is an isosceles right triangle — its two legs are equal, and its hypotenuse is always the leg length times the square root of 2. The leg and hypotenuse each have their own unit selector, so you can enter one unit and read results in another.

Formula: Hypotenuse = leg × √2