Potential Energy Calculator
Calculate gravitational potential energy from mass and height using PE = mgh.
Gravitational potential energy is the energy stored in an object due to its position above a reference point. The formula PE = mgh multiplies mass, gravitational acceleration, and height.
This stored energy converts to kinetic energy when the object falls. At the bottom of the fall (ignoring air resistance), all potential energy has transformed into kinetic energy — this is the principle of conservation of energy.
Practical applications include hydroelectric power (water falling from a dam), roller coasters (climbing the first hill stores PE that drives the ride), and construction safety (a 10 kg tool falling from 20 m releases 1,961 J — enough to cause serious injury). Understanding PE helps engineers design safe structures and efficient energy systems.