Kinetic Energy Calculator

If you want to evaluate the energy of motion in an object, you can use our kinetic energy calculator.

The energy an object posses due to its motion is known as kinetic energy. The SI unit used for kinetic energy is Joule (J). It's the force required by an object to accelerate from its initial to its final velocity. Moreover, an entity/object will sustain its kinetic energy, gained from the acceleration, until variation in speed.


Formula of Kinetic Energy Calculator

If you want to find kinetic energy in an object, you can use our calculator, or to find it by yourself, you can use the KE equation listed below:

KE = 0.5 * m * v²


m = mass

v = velocity

3 values are known to us and 1 value is unknown. e.g., D/10 = 15/5.


To know more about kinetic energy visit our Rotational Kinetic Energy Calculator.


For more precise understanding of concepts, let us have an example below:

Suppose a bullet has a mass of 5g, moving at the speed of 1 km/s, what will be the kinetic energy of a bullet?

Given data

Mass = 5g =0.005 kg
Speed = 1 km/s = 1000 m/s

To Find

Kinetic energy = ?


To find the kinetic energy of the bullet, you can use the formula listed below:

KE = 0.5 * m * v²

Putting values in the formula:

Kinetic energy = 0.5 * 0.005 * (1000)² = 2500 J

How to use the Kinetic Energy Calculator?

The steps to use the kinetic energy calculator are as follows:

Step 1: Enter the value of mass in the first required input.

Step 2: Enter the value of speed in the second required input.

Step 3: The calculator will automatically display an answer on the screen.

Calculator use

Using our free and online kinetic energy calculator, you can find the energy in an object when it's in motion. Just enter the required values in the above steps, and our calculator will display the most prices answered on the screen.