What is the Free Fall Calculator?
An object dropped from rest speeds up at g ≈ 9.81 m/s² on Earth. Enter the height to find how long it takes to hit the ground and how fast it is going – or enter the time to find the height. Compare gravity on the Moon, Mars and other planets. Air resistance is ignored, so real falls of light objects are slower.
How to use the Free Fall Calculator
- Choose what you know: height or time.
- Pick the planet (or a custom g).
- Read time, final speed and height.
Formulas
- h = ½ g t²
- v = g t = √(2 g h)
- t = √(2h ÷ g)
This Free Fall Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech