Free Fall Calculator

Use constant-gravity kinematics to estimate fall time and impact speed while explicitly excluding air resistance.

Fall height

Initial downward speed

Gravitym/s²

—Fall time

—Impact speed m/s

—Impact km/h

—Impact mph

—No air resistance; constant gravity.

These are idealized classical-physics calculations. Real systems can differ because of air resistance, friction, deformation, measurement uncertainty, non-constant forces, or other effects not included in the selected model.

How to use this Free Fall Calculator

Calculate ideal free-fall time and impact speed from height and initial downward speed. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.