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`t = sqrt(2 ( h /g))`

Enter a value for all fields

The **Free Fall (time)** calculator compute the duration of time that an object will be in free fall based on the height and the acceleration due to gravity.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**h**) This is the height of the free fall

**Free Fall Duration (t):** The calculator returns the time in seconds. However this can be automatically converted to compatible units via the pull-down menu.

Time of Free Fall equation is meant for the context of free fall, or constant acceleration downwards due to Earth's gravity without rest, ignoring air resistance. Here, t is the time it takes for the object in question to fall a given distance (Height) with it's acceleration of g (the acceleration at sea level due to gravity, roughly 9.8 m/s^2).

The formula for the time of free fall is:

`t = sqrt( (2·h) / g)`

where:

- t is the time duration of a free fall
- h is the height of the free fall
- g is the acceleration due to gravity