Get ready for the test
Sit comfortably and keep your hand ready. The test area will wait for your first click or key press before each attempt.
Reaction Test
Wait for the signal, then react as quickly as you can. Complete five valid attempts to see your results.
How to use this testClick to StartClick or press Space to begin
Results depend on display latency and your input device, so this is not a laboratory measurement.
How to test your reaction time online
React when the area turns green
Wait for the green signal, then click or press Space or Enter as quickly as you can. An early response counts as a false start.
Review your five results
Each valid response time is shown in milliseconds (ms), followed by your average and best result. Screen and input latency can affect the measurement.