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Pronunciation Score Calculator

Work out pronunciation score instantly with clear inputs, formula shown and shareable results.

About Pronunciation Score Calculator

Pronunciation assessment combines objective phoneme accuracy with subjective intelligibility, because they diverge: some phoneme errors barely affect comprehension while others destroy it. 172 of 200 phonemes correct with a 4 out of 5 intelligibility rating gives a composite of 83.6 - clearly intelligible with a noticeable accent.

Formulas

Phoneme accuracy

accuracy = correct phonemes / total attempted

Composite

score = 60% phoneme accuracy + 40% intelligibility rating

Worked example

With the default values below, Pronunciation Score Calculator returns Composite Pronunciation Score of 83.6. Change any input above and every figure here is recalculated in your browser.

Inputs used

Phonemes pronounced correctlyminimum 0
172
Total phonemes attemptedminimum 1
200
Listener intelligibility ratingaccepts 1–5 /5
4 /5

Results

Composite Pronunciation Score
83.6 /100
Phoneme Accuracy
86.00%
Errors Per Hundred Phonemes
14.0
Intelligibility Assessment
Clearly intelligible with a noticeable accent

Step by step

  1. 1Values used
  2. 2Phoneme accuracy
  3. 3Composite
  4. 4Composite Pronunciation Score= 83.6 /100
  5. 5Phoneme Accuracy= 86.00
  6. 6Errors Per Hundred Phonemes= 14.0
  7. 7Intelligibility Assessment= Clearly intelligible with a noticeable accent

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Should learners aim for a native accent?

Intelligibility matters far more than accent. Research finds comprehensibility plateaus well before native-like pronunciation is reached.

Which errors matter most?

Those that merge phonemic contrasts in the target language, since they create genuine ambiguity rather than just an accent.

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