Typing Accuracy Calculator
Calculate your typing accuracy percentage, error rate, correct keystrokes, and an optional accuracy-adjusted WPM.
Why typing accuracy matters
Speed alone can hide inefficient typing. Corrections interrupt rhythm, consume time, and can reinforce poor key habits. When learning touch typing, it is usually more useful to keep accuracy steady and then let speed rise naturally with repetition.
This calculator uses a transparent keystroke-based formula. Different typing-test services can apply different penalties or definitions for corrected errors, so use the same method when comparing results over time.
Frequently asked questions
How is typing accuracy calculated?
Accuracy can be calculated as correct keystrokes divided by total keystrokes, multiplied by 100. If you only know errors, correct keystrokes equal total keystrokes minus errors.
Is 100% accuracy always necessary?
Perfect accuracy is a useful goal, but consistent practice often focuses first on maintaining a high, stable accuracy level before pushing speed.
What is adjusted WPM on this page?
The optional adjusted WPM simply multiplies gross WPM by the calculated accuracy percentage. It is an easy comparison aid, not a universal test standard.