Kinetic energy is the energy an object carries because of its motion, and it equals one half of the mass multiplied by the velocity squared. This calculator computes the kinetic energy in joules from a mass in kilograms and a speed in meters per second, and it can also work backward to find the mass or the velocity when you know the energy and one other value. Because velocity is squared, doubling the speed quadruples the energy, which is why small increases in speed have such a large effect in crashes and impacts. It is a core formula in mechanics, useful for physics problems, ballistics estimates and understanding vehicle safety. Enter your values, press calculate, and read the result. All computation is local to your browser and instantly private.
Kinetic energy equals one half times mass times velocity squared, written KE equals 0.5 m v squared.
Mass is in kilograms and velocity in meters per second, giving kinetic energy in joules.
Yes. Provide kinetic energy and either mass or velocity and the tool solves for the remaining value.
Kinetic energy is the energy an object carries because of its motion, and it equals one half of the mass multiplied by the velocity squared. This calculator computes the kinetic energy in joules from a mass in kilograms and a speed in meters per second, and it can also work backward to find the mass or the velocity when you know the energy and one other value.
Yes. Kinetic Energy Calculator is completely free, with no sign-up and no usage limits.
Yes. Kinetic Energy Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Kinetic Energy Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.