Calculate the kinetic energy of a particle moving at relativistic speeds. Unlike classical kinetic energy, the relativistic formula accounts for the fact that mass effectively increases with velocity.
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Rest mass of the particle
Velocity as a fraction of the speed of light
How this calculator works
Relativistic kinetic energy equals (Lorentz factor minus 1) times mass times the speed of light squared.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
