Kinetic Energy Calculator
Free online Kinetic Energy Calculator.
Calculator
How to Use
- Enter the required values
- Click Calculate to see the result
- Review the detailed output
Formula
KE = (1/2) x m x v^2, where m = mass (kg), v = velocity (m/s), KE in joules. Doubling velocity quadruples KE. Rotational: KE = (1/2) x I x omega^2.
Example Calculations
Moving Car
Input: Mass: 1,200 kg, Velocity: 25 m/s (56 mph)
Result: KE: 375,000 J (375 kJ)
Baseball
Input: Mass: 0.145 kg, Velocity: 40 m/s (89 mph)
Result: KE: 116 J
Compare Speeds
Input: 1,000 kg at 10 m/s vs 20 m/s
Result: 10 m/s: 50 kJ, 20 m/s: 200 kJ (4x more)
About This Calculator
Free online kinetic energy calculator. Calculate instantly in your browser with our easy-to-use tool. No sign-up required.
Our kinetic energy calculator is free, easy to use, and provides instant results. All calculations are performed in your browser for privacy and speed.
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Frequently Asked Questions
What is kinetic energy?
Energy of motion: KE = (1/2) x m x v^2. Mass in kg, velocity in m/s, result in joules.
Velocity effect on KE?
Proportional to velocity squared. Doubling velocity quadruples KE.
Kinetic vs potential energy?
Kinetic = motion energy. Potential = stored energy from position. A rolling hill converts potential to kinetic.
Rotational kinetic energy?
KE = (1/2) x I x omega^2. I = moment of inertia, omega = angular velocity.
Real-world applications?
Vehicle safety (crumple zones), wind turbines, ballistics, sports science, hydroelectric power.