Time to Visual Reaction Calculator
Enter the distance a ruler falls before you catch it to compute your visual reaction time.
For fun only; reaction times vary with many factors.
Examples
- 20 cm ⇒ 0.20 s
- 5 cm ⇒ 0.10 s
FAQ
What if the distance is zero?
The reaction time would be zero seconds.
Can I use inches?
Convert inches to centimeters before entering.
Does this account for human delay?
It purely calculates time from the drop distance using physics.
Additional Information
- Based on the free-fall equation t = √(2d/g).
- Useful for quick, informal reaction time experiments.