Calculate the kinetic energy of an object at the moment of impact.
Impact Parameters
Calculation Results
Enter parameters to calculate
About this calculator
Quick Reference
mMass of the object
vVelocity at impact
hDrop height
gAcceleration of gravity (9.81 m/s²)
Overview
Impact energy is the kinetic energy of an object just before collision. It depends on the object's mass and its velocity. In a gravity-driven drop, velocity is determined by the fall height.
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Pro Tips
Energy increases linearly with mass but quadratically with velocity ($v^2$).
This calculator assumes no energy loss due to air resistance during a drop.
The result is the total energy available to cause deformation or damage.
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Fun Facts
"A 1 kg hammer traveling at 10 m/s has 50 Joules of energy."
"Crumple zones in cars are designed to absorb and dissipate impact energy over a longer time."
"The impact energy of a 1-ton car at 60 mph is about 360,000 Joules."
