Calculatorism

Rotational Kinetic Energy Calculator

Compute rotational kinetic energy K = ½ I ω².

Input Data

Input Moment of inertia I.
kg·m²
Input Angular speed ω.
rad/s

Results

25J
K = ½ I ω² = 25.0000 J

At a glance:Rotational Kinetic Energy Calculator: enter parameters to compute results; complements related calculators.

Formula

K = ½ I ω²

analogous to linear K = ½ m v²

How to Use

  1. Enter moment of inertia I.
  2. Enter angular speed ω.
  3. Get rotational kinetic energy K.

Case Studies

I=0.5, ω=10

K = 0.5·0.5·100 = 25 J.

FAQ

Total KE?

Translational + rotational: K = ½mv² + ½Iω².

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Rotational Kinetic Energy Calculator（/physics/angular-kinetic-energy）。