Science Calculators
Free Fall Calculator
Enter a height to calculate how long an object takes to fall and its velocity at impact, ignoring air resistance.
2.02 s
Time to fall
19.81 m/s
Impact velocity (44.3 mph)
Ignores air resistance, using g = 9.81 m/s². Real falling objects reach terminal velocity and fall slower than this.
How to use this tool
- 1Enter the height in meters.
- 2See the time to fall and impact velocity.
Frequently asked questions
Why ignore air resistance?+
This uses the standard idealized free-fall model taught in physics — real falling objects experience air resistance and eventually reach terminal velocity, falling slower than this predicts.