Almost every language course, exam and job listing that mentions language ability refers back to the same six-letter scale: A1, A2, B1, B2, C1, C2. But the framework behind those letters is often misunderstood — it is not a test, it does not certify anything by itself, and a course provider advertising a “B2 class” is making a claim that nobody outside that school has necessarily verified. Here is what the CEFR actually is, what each level really describes, and how to use it sensibly when comparing course providers or exams.
What the CEFR actually is
The Common European Framework of Reference for Languages (CEFR) was developed by the Council of Europe and first published in 2001, with a Companion Volume adding new descriptors published in 2020. It was designed as a common basis for describing language ability across any language, so that a course provider in Spain, an exam board in Germany and an employer in the UK can all refer to “B1” and mean roughly the same thing. Crucially, the CEFR is a descriptive framework, not an exam, a curriculum or a certifying body. It defines what a learner can typically do at each level — understanding, speaking, reading and writing — and leaves it to individual schools, exam boards and course providers to decide how to teach towards those levels and how (or whether) to verify that a student has actually reached one.
The six levels, in plain terms
The CEFR groups ability into three broad bands, each split into two levels:
- A1 and A2 (Basic User). At A1, a learner can handle very simple, predictable exchanges — introducing themselves, asking basic questions, understanding slow and clear speech about familiar topics. A2 extends this to short, routine exchanges on everyday matters: shopping, local information, simple work or travel needs.
- B1 and B2 (Independent User). B1 is the level most course providers describe as “conversational” — a learner can get by while travelling, handle familiar topics at work or school, and describe experiences and plans in connected sentences. B2 is a substantial step up: understanding complex text on abstract topics, following native-speed conversation without strain, and producing detailed, structured writing.
- C1 and C2 (Proficient User). C1 covers fluent, flexible use of the language for social, academic and professional purposes, including picking up on implied meaning. C2 is the top of the scale — near-effortless comprehension and highly precise expression, which is not the same thing as sounding exactly like a native speaker, since C2 describes command of the language rather than a specific accent or cultural background.
Where the letters come from in practice
Not every exam that reports a CEFR level was built around the framework in the same way. Several major European exams are constructed directly on CEFR levels — Cambridge English Qualifications is the clearest example, with separate exams for separate levels (B1 Preliminary, B2 First, C1 Advanced, C2 Proficiency), so a candidate sits the exam that matches the level they are aiming for and either meets the standard or doesn’t. France’s DELF/DALF and Germany’s Goethe-Zertifikat exams work the same way, each tied to one specific CEFR level.
Other major exams were not originally built around CEFR and instead publish a crosswalk table mapping their own score scale onto approximate CEFR levels. IELTS (scored 0–9) and the pre-2026 TOEFL iBT (scored 0–120) both fall into this category. That changed for TOEFL in January 2026: ETS introduced a new 1–6 TOEFL iBT score scale explicitly designed to align more directly with CEFR bands, alongside a shorter, redesigned test. Score reports show both the old 0–120 scale and the new 1–6 scale during a transition period running through 2028, after which the 1–6 scale becomes the only one reported. If you are comparing a TOEFL score to a CEFR requirement during this window, check which scale the report is showing you.
What the CEFR does not tell you
A few things get lost when “B2” is used as shorthand:
- It is not self-verifying. A course marketed as “B2 level” only means the provider has labelled it that way. Unless the course ends in a recognised, externally assessed exam, nobody outside the school has independently confirmed that finishing it actually gets a typical student to B2.
- It does not fix how many hours a level takes. Generic guided-learning-hour estimates exist (often cited in the low hundreds for A2, rising toward 700–800 for C1), but these are rough averages across languages, not a guarantee for any specific one — see our guide to why some languages take longer to learn than others for how much that figure shifts depending on which language you’re studying and how distant it is from your first language.
- Levels are not identical across skills. The CEFR assesses listening, reading, spoken interaction, spoken production and writing separately. It is entirely normal for a learner to sit comfortably at B2 for reading and closer to B1 for spontaneous speaking — a single overall label can flatten that difference.
- C2 is not “native speaker.” The framework describes the top of a language-learning scale, not an assertion that a learner is indistinguishable from someone raised speaking the language, which involves cultural and pragmatic knowledge the CEFR was never designed to measure.
Using CEFR sensibly when choosing a course
Ask a prospective course provider two direct questions: which recognised exam (if any) the course is preparing you for, and what evidence they have that past students reach the stated level. A course that leads to an externally graded, CEFR-aligned exam gives you a real check on progress; a course that only self-labels its level does not. If your reason for learning is a hard requirement — a visa, a university offer, a job application — check the CEFR level (or exam score) that institution has actually specified, since requirements vary widely by institution and cannot be assumed from the course level alone. For more on matching a course format to what you’re trying to achieve, see our guide to choosing a language course.