Use this classical-physics calculation for a transparent first-pass result when the variables, reference frame, signs, and SI units match the stated ideal model.

Mass (kg)

Mass in kilograms.

Height (m)

Height above the reference level in meters.

Gravity (m/s²)

Gravitational acceleration; defaults to standard Earth gravity.

Compute gravitational potential energy as mass times height times gravitational acceleration. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Energy (J)

The resulting energy returned as a number.

• Point masses, constant acceleration, rigid bodies, uniform fields, negligible drag, and lossless transfers are common simplifying assumptions. Relativistic, quantum, rotational, dissipative, and uncertainty effects may require a fuller model.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Draw a free-body or energy diagram, check dimensions and limiting cases, retain signs and vectors, and compare consequential results with measurement or simulation.

• Force Calculator

  Compute force as mass times acceleration (F = m·a).

• Kinetic Energy

  Compute translational kinetic energy as one half mass times speed squared.

• Projectile Motion Calculator

  Compute vacuum projectile flight time, maximum height and range from launch speed, launch angle and gravitational acceleration.