Reaction Time Statistics
Since this site was created, it's recorded over 81 million reaction time clicks.
The median reaction time is 273 milliseconds.
The average reaction time is 284 milliseconds.
See below for more information about input/display latency.
It's interesting to see that the recorded reaction times have actually gotten slightly slower over the years, which is almost certainly due to changes in input / display technology.
Newer operating systems tend to do more expensive visual effects, which means a longer lag time from the test to the screen.
Also, mobile device 'taps' tend to be a bit slower than clicks. The increase in use of mobile phones likely has an effect as well.
30ms is currently a typical lag for a desktop/laptop.