Typing Speed and Accuracy Calculator
Estimate typing speed and accuracy from a timed sample when errors are measured using the same word-count rule.
How to use this calculator
- Enter words typed, words counted as errors, test duration (minutes); check the units and use values from the same period or scenario.
- Review the result and intermediate values; change one input at a time when comparing scenarios.
- Keep the stated formula and assumptions with any result you share.
Formula and method
Gross WPM = words typed ÷ minutes. Net WPM = (words typed − errors) ÷ minutes. Accuracy = (words typed − errors) ÷ words typed × 100.
- Gross speed is 140 WPM, net speed is 134 WPM and estimated accuracy is 95.71%.
- Typing tests use different error penalties and token definitions. Compare results only when test rules are consistent.
Worked examples
Worked example
420 words are typed in 3 minutes, with 18 counted errors.
Gross speed is 140 WPM, net speed is 134 WPM and estimated accuracy is 95.71%.
Gross speed is 140 WPM, net speed is 134 WPM and estimated accuracy is 95.71%.
Understanding the result
Gross speed is 140 WPM, net speed is 134 WPM and estimated accuracy is 95.71%.
Typing tests use different error penalties and token definitions. Compare results only when test rules are consistent.
Important notes
Typing tests use different error penalties and token definitions. Compare results only when test rules are consistent.
Use measured inputs and verify that the model matches the situation before making an operational, financial or technical decision.
Frequently asked questions
Are words always five characters?
Many typing tests define a word as five characters, while others count whitespace-separated words.
Can net speed be negative?
The input validation prevents counted errors from exceeding words typed.
What should I check before relying on this result?
Verify units, input definitions and assumptions against your real data or the relevant product, service or professional guidance.
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Related explanations
Learn the method behind the number or compare the terminology before using the calculator.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.