Why accuracy scores from different tests can't be compared
A 97% accuracy score on one platform and a 97% accuracy score on another may represent completely different things. Without knowing exactly which metric a platform uses, you cannot meaningfully compare your accuracy across different tests. Take our Typing Speed test - which uses a consistent, clearly defined methodology - to get a stable baseline for both WPM and accuracy.
A simple illustration of the problem
Imagine a typist who types 300 characters in a 1-minute test, makes 15 errors, and corrects 12 of them by backspacing. Depending on the platform:
- Platform A (raw accuracy): Reports 95% (15 errors out of 300 chars typed)
- Platform B (corrected accuracy): Reports 99% (3 uncorrected errors out of 300 final chars)
- Platform C (net WPM only): Reports no accuracy percentage, subtracts errors from WPM
Same typist. Same performance. Three very different-looking scores.
The three main accuracy metrics explained
1. Raw accuracy (most common)
Most widely usedFormula: (Correct characters typed) ÷ (Total characters typed) × 100
Raw accuracy counts every character attempt - including characters you typed, backspaced, and retyped. If you type "teh" instead of "the" and correct it, the "teh" sequence counts against your raw accuracy. This metric penalizes over-correction (excessive backspacing) as well as errors that reach the final output.
When it's useful: Benchmarking consistency across multiple tests on the same platform. Identifying whether you make many errors that you catch vs. errors that pass through.
2. Corrected accuracy (output quality)
Professional relevanceFormula: (Correct characters in final output) ÷ (Total characters in final output) × 100
Corrected accuracy only measures the quality of your final output - what you would actually submit or send. Errors you caught and corrected do not count against this metric. This is the most relevant measure for most real-world professional purposes, where the document quality matters more than the intermediate typing process.
When it's useful: Evaluating output quality for transcription, data entry, or professional writing. Employment testing often uses this metric.
3. Net WPM (speed and accuracy combined)
Most complete metricFormula: Gross WPM − (Uncorrected errors × Penalty factor)
Net WPM incorporates both speed and accuracy into a single number. It penalizes uncorrected errors by subtracting from the gross WPM score. Different platforms use different penalty factors (commonly 1 WPM per uncorrected error on a 1-minute test). This is the most meaningful single metric for comparing overall typing performance between individuals or tracking progress over time.
When it's useful: Comparing performance across typists, tracking your progress over time, and assessing whether speed gains are coming at the cost of accuracy. Our guide on why accuracy matters more than WPM uses net WPM calculations throughout.
Accuracy benchmarks: what do the percentages actually mean?
| Accuracy % | Errors per 100 chars | Rating | Suitable for |
|---|---|---|---|
| 99–100% | ≤1 error | Exceptional | Medical/legal transcription, certified roles |
| 97–98% | 2–3 errors | Strong professional | Data entry, legal secretary, executive assistant |
| 95–96% | 4–5 errors | Average professional | General office work, customer support |
| 92–94% | 6–8 errors | Below average | Casual use; not suitable for data entry |
| < 92% | >8 errors | Needs improvement | Actively hurting net WPM |
These benchmarks assume raw accuracy measurement on a standardized test. If a platform uses corrected accuracy, all numbers will be 1–4% higher for the same underlying performance level.
How to systematically improve accuracy
Unlike speed, accuracy improvements come primarily from technique corrections rather than practice volume. Here are the most evidence-supported approaches.
Error pattern analysis
High evidenceTrack which specific characters or letter pairs you consistently error on. Most typists have a small set of 5–10 characters or bigrams that account for the majority of their errors. Once identified, targeted drills on these specific characters produce rapid accuracy improvements. Common error-prone areas: characters typed by ring and little fingers, number row characters, and specific bigrams like "qu", "th" (when typed by wrong hand split), and any bigram requiring cross-hand alternation.
For more on identifying and correcting bad habits that cause errors, see our guide on common typing habits that slow you down.
Slow-down-to-speed-up approach
High evidencePractice at the speed where you achieve 99% accuracy consistently. This "sub-threshold" speed encoding approach - taken from motor learning research on skilled performance - builds accurate motor programs that naturally speed up over time. Trying to practice at speeds that produce 93% accuracy encodes the errors as part of the motor program. This is the foundational principle behind the improvement method in our typing speed guide.
The single most important accuracy insight
Track both your raw accuracy AND your net WPM on every test session. If your raw accuracy is below 95% consistently, any WPM gains you see are misleading - they are coming at the cost of errors that hurt real-world output quality. Focus on accuracy-first training until you sustain 97%+ before pushing speed higher.
Get your real accuracy score right now
Take the typing test and look at your accuracy metric alongside your WPM. Most people focus only on speed - accuracy tells the fuller story.
Take the Typing Speed test
