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Is IELTS 6.5 B2 or C1? The Official Boundary Is Not Exact

IELTS and CEFR do not align at exact transition points. IELTS says the C1 threshold falls between bands 6.5 and 7.

Is IELTS 6.5 B2 or C1? The Boundary Is Not Exact

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IELTS and CEFR do not align at exact transition points. IELTS says the C1 threshold falls between bands 6.5 and 7.

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  1. ## Short Answer **IELTS 6.5 is B2** — upper

    intermediate

  2. Specifically, it sits at the upper boundary of B2, very close to C1 but not quit

    Specifically, it sits at the upper boundary of B2, very close to C1 but not quite there

  3. That's why **Band 7.0** is often the minimum for serious academic and profession

    That's why **Band 7.0** is often the minimum for serious academic and professional purposes — it's the official start of C1

  4. **British Council / IDP** publish an official IELTS

    to CEFR correspondence 2

  5. **Cambridge Assessment English** — publishes a similar chart for Cambridge exams

    **Cambridge Assessment English** — publishes a similar chart for Cambridge exams 3

Quick answer: IELTS 6.5 sits around the B2/C1 boundary. It is misleading to state that 6.5 is always B2 and that C1 begins exactly at 7.0.

What IELTS says

IELTS predates the CEFR and says its band scores have never aligned exactly with CEFR transition points. Its current guidance places the minimum C1 threshold between bands 6.5 and 7. It adds that many people scoring 6.5 would be at C1, while some would be marginally below.

Why organisations may use different cut-offs

A university or regulator that wants a high degree of confidence in C1 may set IELTS 7.0. Another organisation may accept 6.5 for a particular programme. That admissions threshold is the organisation's policy; it is not proof that every person at that band has exactly the same CEFR level.

Practical interpretation

IELTS resultSafe interpretation
5.5–6.0Commonly associated with B2 in IELTS guidance
6.5Boundary region: many C1, some marginally below
7.0–8.0Commonly associated with C1
8.5+Recognised as C2; band 8 is borderline

Source: IELTS and the CEFR. For admission, use the receiving organisation's own current IELTS requirement rather than converting the score yourself.