By Reaction Time Test Online · Updated
What is the average human reaction time?
One calibrated visual study of 1,469 adults aged 18–65 reported a mean of 231 ms, or 213 ms after correcting for hardware delay. These are study averages, not a worldwide norm or this website’s user average. Source: Woods et al. (2015).
For an online result, ask which task, device, input, and scoring method produced it. A best click, a five-round average, and a response that requires deciding whether to act answer different questions.
Measure your five-round averageResearch data: compare the conditions with the number
The same paper reports two experiments. Keeping the samples and calibration visible makes the numbers more useful than a single unlabeled “normal” score.
| Experiment | Sample | Reported mean | Context |
|---|---|---|---|
| Experiment 1 | 1,469 adults; 18–65 years | 231 ms measured; 213 ms hardware-corrected | Visual target, mouse response, 120 test trials |
| Experiment 2 | 189 adults; 18–82 years | 238 ms measured | Separate laboratory, 100 test trials |
These are means, not medians or percentile cutoffs. The corrected value is not a fixed adjustment to subtract from your browser score. Read the methods and results.
Typical, average, and normal reaction time
“Average” should identify a statistic, such as the arithmetic mean of all valid rounds. “Typical” is an informal description unless a source defines it; it can refer to a mean, median, or common range. “Normal” needs a defined reference group and task. None is a universal pass mark.
On this site, your five-round average is the sum of those five response times divided by five. Your best round is the smallest value. For example, 220, 240, 230, 260, and 250 ms give a 240 ms average and a 220 ms best. Both describe that session; neither establishes your rank among all people.
Is 200, 250, or 300 ms a good reaction time?
Use each number as a measurement of one task on one setup. A repeatable 200 ms average and a single 200 ms best attempt are different results. A 300 ms phone result cannot be fairly ranked against a 250 ms desktop result without accounting for the changed conditions.
First compare your own full-session averages with the same device and input. If you want to compare with a study, check its task and calibration before treating the difference as a difference in ability. See how to interpret a good reaction time.
How do age and sex affect the average?
Woods et al. observed slower responses with age in their adult samples. Experiment 1 did not find an effect of sex on simple reaction time. These results concern that protocol; they do not create an individual age or sex target. Study findings.
This site does not collect a representative age-norm dataset. It therefore does not assign an age percentile or publish an age-by-age score chart. For the limits of those comparisons, read the reaction time by age guide.
Gamers, athletes, and different response tasks
A click after a color change, choosing a target in a game, and moving to intercept a ball use different cues and responses. A professional’s number from one of these tasks is not an appropriate benchmark for another. An occupation label alone does not make measurements comparable.
There is no verified professional-gamer or athlete average in this site’s results. Use the gamer and athlete comparison guide to check what a reported number actually measures. For a task that includes withholding a response, try the visual go/no-go reflex test; its hit times should be read alongside accuracy.
Make your next comparison useful
- Use the same device, browser, and response method. Start a separate baseline if you change them.
- Take a practice session, then complete the same planned number of rounds each time.
- Record full-session averages and false starts. Avoid choosing only a lucky fastest attempt.
- Repeat on another day under similar conditions before interpreting a small change.
A browser clock measures software events. Screen refresh, display processing, and input delay remain part of the setup. See our timing method and repeatable practice routine.