Calculate the relativistic momentum of a particle moving at significant fractions of the speed of light. Unlike classical momentum, relativistic momentum increases asymptotically as velocity approaches c.
Enter your values below
Electron mass ≈ 9.109×10⁻³¹ kg
Fraction of the speed of light (0 to 1)
How this calculator works
Relativistic momentum equals the Lorentz factor times mass times velocity, where γ = 1/√(1 - v²/c²).
Common questions about this calculator
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