Enter the mass momentum of inertia and the angular velocity of an object to calculate the rotational kinetic energy.

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## Rotational Kinetic Energy Formula

The following equation is used by the calculator to determine the rotational kinetic energy of an object.

E = 0.5 * I * ω²

- Where E is the rotational kinetic energy in Joules
- I is the mass moment of inertia
- w is the angular velocity

To calculate the rotational kinetic energy, multiply the mass moment of inertia by the angular velocity squared, then divide the result by 2.

## Rotational Kinetic Energy Definition

Rotational kinetic energy is an amount of energy contained by an object undergoing a rotational motion.

## How to calculate a rotational kinetic energy?

How to calculate a rotational kinetic energy?

**First, determine the moment of inertia.**Calculate the mass moment of inertia using the calculator linked above.

**Next, determine the angular velocity.**Measure the angular velocity.

**Finally, calculate the rotational kinetic energy.**Using the formula above, calculate the rotational energy.

## FAQ

**What is a rotational kinetic energy?**

Rotational kinetic energy is an amount of energy contained by an object undergoing a rotational motion.