Calculates the kinetic energy of an object moving at relativistic speeds, considering the effects of special relativity.
Start with your values, or try a preset.
Enter Rest Mass (kg) and Velocity (fraction of c) in the units shown.
Read Lorentz Factor (γ), Speed of Light (m/s), Rest Energy (J), Total Energy (J), and Kinetic Energy (J) in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Rest Mass (kg): 0.0000000000000000000000000000009109 kg; Velocity (fraction of c): 0.8 c
Lorentz Factor (γ): 1.666666667; Speed of Light (m/s): 299,792,458 m/s; Rest Energy (J): 0.00000000000008186760923 J; Total Energy (J): 0.0000000000001364460154 J; Kinetic Energy (J): 0.00000000000005457840615 J
Rest Mass (kg): 0.0000000000000000000000000016726 kg; Velocity (fraction of c): 0.6 c
Lorentz Factor (γ): 1.25; Speed of Light (m/s): 299,792,458 m/s; Rest Energy (J): 0.0000000001503257912 J; Total Energy (J): 0.000000000187907239 J; Kinetic Energy (J): 0.0000000000375814478 J
Rest Mass (kg): 1 kg; Velocity (fraction of c): 0.99 c
Lorentz Factor (γ): 7.08881205; Speed of Light (m/s): 299,792,458 m/s; Rest Energy (J): 89,875,517,870,000,000 J; Total Energy (J): 637,110,654,100,000,000 J; Kinetic Energy (J): 547,235,136,200,000,000 J
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