Free Fall Velocity Calculator

The handy free fall velocity calculator helps you determine the speed at which an element would be if it is in free fall. It will only need either distance covered or falling time as per the free fall velocity formula.

You probably have seen a movie where the leading actor finds the deepness of a pit by throwing a rock inside. You might have thought, oh, that's cool. Well, in this article, we will teach you how to calculate the free fall velocity of any object without considering the effect of air.

Let's start by covering what free fall is and its difference accordingly to where it is conducted:

In an empty space: When there is no fluid, like air, in the environment, the object's mass and dimensions do not affect it. Then, we have a direct formula:

where:

• $v$ — Velocity at any time of the free fall, in $\text{m}/\text{s}$.
• $v_0$ — Initial speed when the falling started, in $\text{m}/\text{s}$.
• $g$ — Gravitational acceleration, $9.80665~\text{m}/\text{s}^2$.
• $t$ — Falling time, in $\text{s}$.

Consequently, with the above free fall velocity formula, we only need to know the fall duration to determine the final velocity; always remember such a value is valid because we are not considering air resistance.

We can use our free fall velocity calculator or adapt the free fall velocity formula we used above to include height. First, we have to start with the relation between height $h$, initial speed, falling time, and gravity:

If we include the previous free fall velocity formula, we get:

Let's cover an example. Imagine you throw an object from a 100 meters height. What is the free fall velocity at the 0 meters level? Try our cool free fall velocity calculator or use the formula above:

1. Recognize the data: We have $v_0 = 0~\text{m}/\text{s}$ and $h = 100~\text{m}$.
2. Combine the three formulas above and get: $h = 0.5 \times g \times t^2$
3. Determine the falling time: $4.516~\text{s}$.
4. Calculate the free fall velocity with its formula: $44.29~\text{m}/\text{s}$

If you liked the free fall velocity calculator, check out our other related tools:

• Free fall calculator;
• Free fall distance;
• Free fall height; and
• Free fall time.