Overview
What Is Kinetic Energy?
Kinetic energy is the energy an object has due to its motion, calculated as KE = ½mv², where m is mass and v is velocity.
Calculate kinetic energy from mass and velocity.
Kinetic energy is the energy an object has due to its motion, calculated as KE = ½mv², where m is mass and v is velocity.
Useful for mechanics coursework and understanding energy in moving objects.
Input the object's mass in kilograms.
Input the velocity in meters per second.
The result in Joules updates automatically.
KE = ½ × mass × velocity²
Mass in kilograms, velocity in meters per second, and kinetic energy in Joules.
Because velocity is squared in the formula, small increases in speed have a larger impact on kinetic energy than equivalent increases in mass.
No, kinetic energy is always zero or positive since it depends on velocity squared, which is never negative.
A Joule (J) is the SI unit of energy, defined as the energy transferred when applying 1 Newton of force over 1 meter.
No, this calculates translational (linear motion) kinetic energy only.
Yes, kinetic energy calculations are foundational in vehicle safety, sports science, and mechanical engineering.
Kinetic energy would be zero, since a stationary object has no kinetic energy.
No, calculations happen entirely in your browser.
Yes, completely free with no sign-up required.