Formula and method
Kinetic energy K = ½mv². Momentum magnitude p = mv.
Worked example
A 2 kg object moving at 3 m/s has 9 J of translational kinetic energy and momentum magnitude 6 kg·m/s.
Kinetic Energy Calculator
Calculate classical translational kinetic energy and momentum magnitude from mass and speed in SI units.
Printed from Calxy · https://www.calxy.net/other/kinetic-energy-calculator
Translational kinetic energy9.0000 J
kg
0 – 1000000000000000
m/s
0 – 1000000000000000
Translational kinetic energy
9.0000 J
- Momentum magnitude6.0000 kg·m/s
Classical translational energy, appropriate when speeds are much smaller than the speed of light. Rotational energy is separate.
How this was calculated
K = ½mv².
Momentum magnitude = mass × speed.
Frequently asked questions
Does this include rotation or relativistic motion?
No. Rotation has a separate energy term, and speeds near the speed of light require relativistic mechanics.
Last updated . Results are estimates for informational purposes only.