Calculate the kinetic energy of a rotating object.
Object Parameters
Kinetic Energy
Enter inertia and velocity
About this calculator
Quick Reference
KERotational Energy
IMoment of Inertia
ωAngular Velocity
Overview
Just as moving objects have linear kinetic energy, rotating objects have rotational kinetic energy. It depends on how fast they spin and how their mass is distributed.
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Pro Tips
KE = 0.5 * I * ω²
I = Moment of Inertia (kg·m²)
ω = Angular Velocity (rad/s)
Make sure to convert RPM to rad/s (approx RPM * 0.1047).
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Fun Facts
"Flywheels use rotational kinetic energy to store energy mechanically."
"The Earth has huge rotational kinetic energy due to its spin."
