Kinetic Energy Calculator
📐 Physics of Matter. Use the Kinetic energy formula to find kinetic energy, mass, speed: pick the value you want, type the others, and the answer updates as you go.
Kinetic energy50 J
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Kinetic energy | J |
| Mass | kg |
| Speed | m/s |
Worked example
Find the kinetic energy when Mass = 1 kg, Speed = 10 m/s.
Using KE = 1/2mv²: Kinetic energy = 50 J.
Frequently asked questions
What is the formula for Kinetic energy?
KE = 1/2mv².
What do the letters stand for, and what units are used?
Kinetic energy in J, Mass in kg, Speed in m/s.
How do you calculate kinetic energy?
Put the values into KE = 1/2mv². For example, with Mass = 1 kg, Speed = 10 m/s, kinetic energy = 50 J.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (kinetic energy, mass, speed) and fill in the others: it rearranges the formula for you.
