Free-fall time
Free-fall time: use drop height, gravitational acceleration. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
t = √(2h/g)
Variables & units
- Drop height
- m · minimum 0, maximum 1000000000000
- Gravitational acceleration
- m/s² · minimum 5e-324, maximum 1000000000000
Worked example
Use the displayed example inputs, then follow the substituted values in the solution.
Assumptions
Starts from rest with constant g; ignores drag.
References
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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