A percentile shows the share of people you scored above. Reach the 90th percentile on a working memory test and you beat 90 percent of players. Working memory scores swing with attention, so where you land depends partly on your state that day. This page gives the full distribution so you can find your rank.
The working memory percentile chart
Here’s how working memory scores spread across the population:
| Percentile | Score |
|---|---|
| 10th | 3 levels |
| 25th | 4 levels |
| 50th | 5 levels |
| 75th | 6 levels |
| 90th | 7 levels |
| 95th | 7 levels |
| 99th | 8 levels |
The median sits at 5. Usable working memory tops out low, around four chunks in Nelson Cowan’s estimate, so the distribution is compressed compared with passive short-term span. A small gain in score therefore clears a meaningful slice of the field.
What the milestones mean
- 5 (50th): median, a typical result.
- 6 (75th): upper quarter, above average.
- 7 (90th): top ten percent, strong.
- 8 (99th): top one percent, rare and hard to sustain.
Find your percentile
Take the working memory test and match your result to the chart. Your percentile shows the moment you finish, though this test is worth repeating in quiet conditions, since distraction can drop you a whole band. For the plain-language read, see the average working memory score. For the passive-storage version, compare the short term memory percentiles. To see how the typical working memory score shifts across age bands, see memory score by age, and for the methods that move people up the chart, see how to improve memory.
Frequently asked questions
What working memory score is top 1%?
Reaching 8 puts you in the top one percent. Because usable working memory is small and the distribution is tight, the top of the chart isn’t far above the middle in raw terms, but very few people hold that level under a rising load without slipping.
Why does my working memory percentile change so much between tries?
Because working memory leans on attention control, which noise, stress, and tiredness disrupt. A distracting room can drop you a full band, while a quiet, rested run lifts you back up. That’s not measurement error; it’s the ability itself flexing with your state. Use your typical calm-conditions score as the real one.
Is a lower working memory percentile than my digit span normal?
Yes. Working memory holds and manipulates information at once, which competes for limited resources and caps usable capacity near four chunks, versus around seven for passive storage. Scoring lower on working memory than on a plain digit span is expected for almost everyone.