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Language Proficiency Level Calculator

Work out language proficiency level instantly with clear inputs, formula shown and shareable results.

About Language Proficiency Level Calculator

CEFR levels correspond to broad bands of guided learning hours, but the hours required scale with how distant the target language is from your first. Self-study counts less per hour than guided instruction, while immersion is worth several times either.

Formulas

Effective hours

Effective = Guided hours + Self-study x 0.6 + Immersion weeks x 25

Adjusted hours

Adjusted = Effective hours / Difficulty factor

Level bands

A2 from 150; B1 from 280; B2 from 450; C1 from 700; C2 from 1,000 adjusted hours

Worked example

With the default values below, Language Proficiency Level Calculator returns Estimated CEFR level of B2. Change any input above and every figure here is recalculated in your browser.

Inputs used

Guided learning hours completed
420
Self-study hours completed
280
Weeks of immersion
4
Language difficulty for your first languageone of Category 1 — closely related, Category 2 — moderately different, Category 3 — very different
Category 2 — moderately different

Results

Estimated CEFR level
B2
Difficulty-adjusted study hours
459
Additional hours to the next level
362
Difficulty factor applied
1.50

Step by step

  1. 1Values used
  2. 2Effective hours
  3. 3Adjusted hours
  4. 4Level bands
  5. 5Estimated CEFR level= B2
  6. 6Difficulty-adjusted study hours= 459
  7. 7Additional hours to the next level= 362
  8. 8Difficulty factor applied= 1.50

Assumptions and limits

  • The result is derived only from the 4 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

Are hour estimates reliable?

Only as a planning guide. Aptitude, prior language learning experience and study quality vary the requirement by a factor of two or more.

Why does immersion count for so much?

Because it forces production and listening under time pressure across many contexts, which classroom hours cannot replicate.

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