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Quick answer
WCPM = (words attempted − errors) × 60 ÷ reading time in seconds. Reading 120 words with 5 errors in 60 seconds gives 115 words correct per minute and 95.83% accuracy. WCPM measures rate and accuracy; it does not measure comprehension.
How to use
Enter the known values, check the selected units and assumptions, then calculate. Compare the result with the worked example. Copy, print or export the table when you need a record. Count all words attempted up to the stopping point, then enter the errors separately. For 60 seconds, WCPM is simply words minus errors. Other durations are prorated. Stop the built-in stopwatch to transfer its elapsed seconds into the calculation.
Formula and method
WCPM = (words − errors) × 60 / seconds; accuracy% = (words − errors) / words × 100
Worked example
(120 − 5) × 60 / 60 = 115; Reading accuracy ≈ 95.83%
Assumptions and limits
This measures reading rate and accuracy, not comprehension or a diagnosis. Follow the passage language and assessment’s error rules. English reading norms must not be assumed to apply to all languages. Short timed probes may not match a standard 60-second assessment.
Sources and methodology
Method reviewed:
Frequently asked questions
How is the result calculated?
Count all words attempted up to the stopping point, then enter the errors separately. For 60 seconds, WCPM is simply words minus errors. Other durations are prorated. Stop the built-in stopwatch to transfer its elapsed seconds into the calculation.
What should I check before using the result?
This measures reading rate and accuracy, not comprehension or a diagnosis. Follow the passage language and assessment’s error rules. English reading norms must not be assumed to apply to all languages. Short timed probes may not match a standard 60-second assessment.
Are my inputs sent to a server?
Calculations run in your browser. This plugin does not send your entered values to a server or save them. Other site analytics are governed by the site privacy policy.