Relativistic Kinetic Energy Calculator
Compute relativistic KE = (γ−1)mc² from rest mass and speed.
Input Data
Input Rest mass m.
kg
Input Speed v.
m/s
Results
0J
KE = (γ−1)mc², γ = 1/√(1−v²/c²).
At a glance:Relativistic Kinetic Energy Calculator: enter parameters to compute results; complements related calculators.
Formula
γ = 1/√(1−v²/c²).
KE = (γ−1)·m·c².
How to Use
- Enter rest mass m and speed v (≤ c).
- It returns relativistic KE.
Case Studies
m=1, v=0.5c → KE≈1.39×10¹⁶ J
γ≈1.1547, KE≈0.1547·c².
FAQ
Why can't speed exceed c?
γ diverges as v→c, needing infinite energy, so c is the limit.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.