When the red box turns green, click as quickly as you can.
Click anywhere to keep going.
Statistics will be displayed here after completing tests
This is a simple tool to measure your reaction time. The average (median) reaction time is 273 milliseconds, according to the data collected so far. In addition to measuring your reaction time, this test is affected by the latency of your computer and monitor. Using a fast computer and low latency / high framerate monitor will improve your score.