The Moment of Inertia of a Torus calculator computes the moment of inertia of a torus of uniform density with outer radius a and inner radius b about a line through the center of mass lying in the plane of the torus.
INSTRUCTIONS: Choose units and enter the following:
Torus Moment of Inertia (MoI): The calculator returns the moment of inertia.
The formula for the moment of inertia of a torus about a line through the center of the ring and center of mass is:
MoI = (M(9•a²-10•a•b+5•b²))/4
where: