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Fluency Level Estimate Calculator

Work out fluency level estimate instantly with clear inputs, formula shown and shareable results.

About Fluency Level Estimate Calculator

Proficiency depends on study hours, vocabulary breadth and productive practice, weighted here 40/35/25. Three hundred and fifty hours with 2500 words and forty hours of speaking gives a composite of 44 - the A2 to B1 boundary. Speaking practice is the component learners most often neglect, and it is what separates passive knowledge from fluency.

Formulas

Composite score

score = 40% study hours + 35% vocabulary + 25% speaking practice, each capped at 100

CEFR bands

45 for B1, 65 for B2, 85 for C1

Worked example

With the default values below, Fluency Level Estimate Calculator returns Composite Proficiency Score of 38.1. Change any input above and every figure here is recalculated in your browser.

Inputs used

Hours studied so farminimum 0 h
350 h
Known vocabularyminimum 0 words
2,500 words
Hours of speaking practiceminimum 0 h
40 h

Results

Composite Proficiency Score
38.1 /100
Estimated CEFR Level
A2 - elementary
Vocabulary Component
50.0
Speaking Practice Component
20.0

Step by step

  1. 1Values used
  2. 2Composite score
  3. 3CEFR bands
  4. 4Composite Proficiency Score= 38.1 /100
  5. 5Estimated CEFR Level= A2 - elementary
  6. 6Vocabulary Component= 50.0
  7. 7Speaking Practice Component= 20.0

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 1 decimal place, 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

Why weight speaking practice separately?

Because comprehension and production develop differently. Many learners read at B2 while speaking at A2 because they never practise output.

Is 5000 words enough for B2?

Roughly - 4000 to 5000 word families covers about 95% of everyday text, which is the usual threshold for comfortable comprehension.

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