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Calculate kinetic, potential, and total energy instantly with our free Mechanical Energy Calculator. Simple, accurate, and perfect for physics students.
Mechanical Energy is the total energy an object has because of its motion and position. We built this Mechanical Energy Calculator to make it simple for anyone student, teacher, or hobbyist to find energy values in seconds. You’ll just enter mass, velocity, height, and gravity, and it’ll do all the math for you.
Mechanical energy is the sum of two types of energy kinetic energy and potential energy. In simple terms, it’s the energy of movement and position.
For example, a ball rolling down a hill has both. Its speed gives it kinetic energy, and its height gives it potential energy.
Here’s the basic mechanical energy formula:
Mechanical Energy (E) = Kinetic Energy (½mv²) + Potential Energy (mgh)
Where:
All results are in Joules (J), the SI unit of energy.
Using this calculator is super easy. You’ll need just a few numbers.
Step 1: Enter the mass
Type the object’s mass and select its unit (kg, g, lb, etc.).
Step 2: Enter the velocity
Add how fast the object moves. You can use m/s, km/h, or mph.
Step 3: Enter the height and gravity
Put the object’s height and gravity. If you’re on Earth, use 9.81 m/s².
Step 4: Get your result
Hit calculate. You’ll instantly see:
The calculator also converts everything to standard SI units, so your results stay accurate and consistent.
Let’s say you have a 2 kg ball moving at 3 m/s, and it’s 5 m above the ground.
Kinetic Energy = ½ × 2 × 3² = 9 J
Potential Energy = 2 × 9.81 × 5 = 98.1 J
Total Mechanical Energy = 9 + 98.1 = 107.1 Joules
That’s your total energy fast, easy, and precise!
When something moves, it has kinetic energy the energy of motion.
When it’s lifted above the ground, it gains potential energy the energy of position.
Together, these form mechanical energy, which stays constant if no friction or air resistance acts on it. That’s why physicists say energy is “conserved.”
In short, Mechanical Energy = ½mv² + mgh.
Our Mechanical Energy Calculator makes physics simple. You’ll get instant answers, clear explanations, and accurate results every time. It’s free, fast, and works with any device.
So next time you need to calculate energy, don’t stress use our calculator and see the magic of motion and gravity come alive.
It supports kg, g, lb, oz for mass; m/s, km/h, mph for velocity; and meters, feet, or miles for height.
That’s Earth’s gravitational acceleration how fast objects fall toward Earth.
Yes! Just replace 9.81 with the planet’s gravity (for example, 3.7 for Mars).
Yes, it uses real physics formulas and converts all values to SI units for precise results.
Mechanical energy is measured in Joules (J).