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Is a 300 ms reaction time good?

A 300 ms reaction time is faster than 25% of people who took Human Benchmark's test, and 22% of 25 to 34 year olds. Among people 65 and over it is the 77th percentile.

Percentile
25%
of testers are slower than 300 ms
300 ms

300 ms by group

By age group

Share of testers in each age group slower than 300 ms
GroupMeanSlower than you1 in X
18 to 24242 ms13%1 in 8
25 to 34258 ms22%1 in 4
35 to 44274 ms32%1 in 3
45 to 54295 ms47%1 in 2
55 to 64320 ms62%1 in 3
65 and over350 ms77%1 in 4
All ages262 ms25%1 in 4

Percentile is the share of the group slower than this time, so a lower time gives a higher percentile. “1 in X” counts the rarer side: people at or beyond this value above the median, at or under it below. Percentiles are estimated from a normal distribution per age group.

What this means

  • Mean reaction time in this data rises about 20 ms per decade: 242 ms at 18 to 24, 350 ms at 65 and over. 300 ms is the 13th percentile for the youngest group and the 77th percentile for the oldest.
  • Human Benchmark's numbers come from people who chose to take a reaction test, on their own screens. Display and input lag add 10 to 50 ms, so a 300 ms result partly measures your monitor.
  • Five-trial averages move 20 to 30 ms between sessions. One result is a sample, not a trait.

Questions

Is 300 ms a good reaction time?
300 ms is faster than 25% of all Human Benchmark testers and 22% of 25 to 34 year olds. That is slower than most testers, though age, hardware and tiredness all push the number up.
What is the average reaction time?
The mean in Human Benchmark's data is 262 ms across all ages: 242 ms at 18 to 24, 274 ms at 35 to 44 and 350 ms at 65 and over. The site's reported median is about 251 ms.
How rare is a 300 ms reaction time?
Across all ages, about 1 in 4 testers are as slow or slower. For 18 to 24 year olds it is 1 in 8; for people over 65, 1 in 4.

Source: Human Benchmark, aggregated reaction test results, 2024. A self-selected sample of people who take reaction tests, not the population. Percentiles on this page are our estimate from a normal distribution with the stated mean and SD.

Five trials, your age group, your percentile. About 20 seconds.

Test your reaction time