Kinetic Energy
Translational kinetic energy is the energy associated with motion of a mass.
Kinetic Energy
Energy · 2 inputs
How to use this calculator
- Enter mass in kg.
- Enter speed in m/s.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Choose a system boundary and a positive direction before entering measured values. Introductory equations deliberately leave out some real-world effects. If the setup has changing acceleration, drag, losses or nonuniform properties, first decide whether the simplified model is a useful approximation.
Speed is squared, so doubling speed quadruples kinetic energy in the classical model.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
Related calculations
Gravitational Potential Energy
Near a planetary surface, a change in height changes gravitational potential energy approximately linearly.
Open calculator ↗Spring Potential Energy
An ideal linear spring stores elastic energy as it stretches or compresses.
Open calculator ↗Work by Constant Force
Work depends on the component of a constant force along the displacement.
Open calculator ↗