Time Unit Converter
Convert a quantity using the listed fixed unit factors.
Open toolFree Fall Time Calculator
Time to fall from rest = √(2 × height / gravity). Constant gravity, no drag and zero initial vertical velocity.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Calculate.
Your result
Enter your details
Result will appear here
How Free Fall Time Calculator works
Time to fall from rest = √(2 × height / gravity).
Constant gravity, no drag and zero initial vertical velocity. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
How to use Free Fall Time Calculator
Follow the labelled inputs.
Enter drop height (m)
Replace the example with drop height (m). The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
Set gravity (m/s²). Constant gravity, no drag and zero initial vertical velocity.
Tool result
Run, review and save
Select Calculate. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Free Fall Time Calculator
Check the supplied example
The starting example produces 2 s. Time to fall from rest = √(2 × height / gravity).
Use your own inputs
Read the labels for drop height (m) and gravity (m/s²). Constant gravity, no drag and zero initial vertical velocity.
Record a reviewed result
Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Supported input and limits
Check the stated scope before you run it.
Constant gravity, no drag and zero initial vertical velocity. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
The input stays in this browser. Copy result and Download save the same displayed text.
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Open toolFree Fall Time Calculator: common questions
Answers about using Free Fall Time Calculator and understanding its results.
What assumptions and input limits apply?
Constant gravity, no drag and zero initial vertical velocity. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
How can I save the output?
Use Copy result to copy the displayed text, or Download to save it as a text file. The tool runs in your browser and does not require an account.
Calculate with your input
Check the calculated result, then copy or download it.