Reaction Time Test — Average Human Reaction Time

The average human reaction time is approximately 250 milliseconds for a simple visual stimulus. Reaction time slows with age — 18–24 year olds average around 242ms, while 65+ averages around 350ms. Elite athletes and esports players can achieve 150–180ms. This test uses 5 trials and calculates your average, then compares it against age-group norms from Human Benchmark data (N>50 million tests).