Physics & Engineering
Kinetic Energy
KE = ½mv² (joules).
Educational estimates only. Not medical, legal, tax, or financial advice.
Guide: Kinetic Energy
What it does
Evaluates ½mv².
How to use it
Enter mass and velocity, then calculate.
Formula
KE = ½ m v².
Example
10 kg at 5 m/s → 125 J.
FAQs
Relativistic speeds?
Classical formula breaks down near light speed.
km/h instead of m/s?
Convert to m/s before entering: m/s = km/h ÷ 3.6.
Rotational kinetic energy?
That uses moment of inertia; this tool is linear KE only.