Falling from a Height Calculator
🎯 Projectiles. Use the Falling from a height formula to find fall time, height, g: pick the value you want, type the others, and the answer updates as you go.
The horizontal speed makes no difference to the fall time.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Fall time | s |
| Height | m |
| g | m/s² |
Worked example
Find the fall time when Height = 20 m, g = 9.81 m/s².
Using t = √(2h/g): Fall time = 2.0193 s.
Frequently asked questions
What is the formula for Falling from a height?
t = √(2h/g). The horizontal speed makes no difference to the fall time.
What do the letters stand for, and what units are used?
Fall time in s, Height in m, g in m/s².
How do you calculate fall time?
Put the values into t = √(2h/g). For example, with Height = 20 m, g = 9.81 m/s², fall time = 2.0193 s.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (fall time, height, g) and fill in the others: it rearranges the formula for you.
