Kinetic Energy Calculator

Calculate kinetic energy from mass and velocity. Use the formula KE = ½mv².

Inputs

Mass

Velocity

m/s

Tab to move between fields

Results

Kinetic Energy

500 J

Kinetic Energy (kcal)0.12 kcal

How to Use This Calculator

Enter the object mass (kg) and velocity (m/s).
Review kinetic energy in joules and kcal using KE = (1/2)mv2.
Double the velocity quadruples kinetic energy -- key insight for vehicle crash energy analysis.
Convert joules to kWh (divide by 3,600,000) for energy storage or battery sizing applications.

How the result changes with Velocity

Velocity	Kinetic Energy
10,000	500,000,000 J
35,000	6,125,000,000 J
65,000	21,125,000,000 J
90,000	40,500,000,000 J

What each input means

Mass: Mass of the object in kilograms.
Velocity: Velocity of the object in meters per second.

How this is calculated

Formula

KE = ½mv²

Worked example, using the default values

Identify Input Parameters
Mass = 10, Velocity = 10 = 2 input(s) provided
Calculate Kinetic Energy
Kinetic Energy
500 = 500
Calculate Kinetic Energy
Kinetic Energy
0.12 = 0.12

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