DSTwistAngle Calculator

The angle of twist on a line shaft involves its geometry, and the torque applied to it. Engineers use this calculation to determine the rotational displacement of a shaft given a certain load. The angle of twist calculations also involve determining the second area moment of inertia of a shaft. Engineers usually find these in a table of equations given a shaft’s shape and whether it is hollow or solid. Many sources provide these tables of equations, including design guidebooks and manufacturers.

With this tool, you can calculate the angle of twist of a member subjected to a torque T by inputting the variables of the angle of twist formula (shaft length, torque, polar moment of inertia, and shear modulus).