EN
Typing accuracy is usually discussed too vaguely. Large datasets show that the meaning of an error depends on whether it was left in the text or corrected on the way.
Use the article together with TypeLab lessons, typing tests, and practice pages so the advice turns into measurable progress rather than one-off reading.
Canonical: https://typelab.org/blog/the-real-error-rate-in-typing
People talk about typing accuracy as if errors were a single thing. They are not. Some errors remain in the final text. Others are corrected quickly and never seen by the reader. Both matter, but they matter differently.
The mobile typing study with 37,370 volunteers reported 2.3% uncorrected errors and 6.3% corrected errors. That is a useful distinction. It shows that people are making more slips than the final text reveals, and that a lot of performance cost hides inside correction behavior.
The large physical-keyboard dataset reports an average uncorrected error rate of 1.167%, which is lower. Part of that gap likely reflects the advantages of a physical keyboard for controlled text entry.
| Error type | What it means | Why it matters |
|---|---|---|
| Uncorrected error | A mistake left in the text | Directly lowers accuracy and final quality |
| Corrected error | A mistake fixed before submission | Still costs time and breaks rhythm |
| Late correction pattern | Multiple fixes after momentum breaks | Often the hidden cost behind “fast” but messy typing |
At higher speeds, one mistake can cost more than it seems because it interrupts the phrase you were already planning. That is why skilled typists are not merely faster. They are often better at catching the problem early enough to keep the correction small.
The better goal is not zero visible mistakes in a single lucky run. It is low correction cost across repeated tests. If your speed rises but the number of awkward corrections rises with it, the improvement is less real than the headline score suggests.
Measure your own baseline with a typing speed test, then run the same format weekly. If you need help interpreting the score, read How Accurate Are Typing Speed Tests?.
Typing accuracy is usually discussed too vaguely. Large datasets show that the meaning of an error depends on whether it was left in the text or corrected on the way.
Use the article together with TypeLab lessons, typing tests, and practice pages so the advice turns into measurable progress rather than one-off reading.
Continue with Training, Test Yourself, Games to move from reading into guided practice, testing, or related resources.