IELTS Band Scores Explained: How Marks Are Calculated

Most candidates know they need "a 6.5" without knowing what produces one. Understanding the mechanics tells you exactly where to spend your preparation time.

The overall band is an average, rounded

You receive a band score from 0 to 9 in each of Listening, Reading, Writing and Speaking. The overall band is the mean of those four, rounded according to a specific rule:

• An average ending in .25 rounds up to the next half band
• An average ending in .75 rounds up to the next whole band
• Anything below .25 rounds down to the whole band

So 6.5, 6.5, 6.0, 7.0 averages 6.5 exactly. But 6.5, 6.0, 6.0, 7.0 averages 6.375, which rounds to 6.5. And 6.0, 6.0, 6.0, 7.0 averages 6.25, which rounds up to 6.5.

The practical consequence: half a band in one module can move your overall score. If you are at 6.25 and need 6.5, you need only a small improvement in your weakest module, not a general improvement across all four.

Listening and Reading: raw marks converted

Both modules have forty questions, each worth one mark. Your raw score out of forty converts to a band.

Indicative conversion for Listening:

Academic Reading is graded slightly more strictly than General Training Reading, which reflects the difference in text difficulty. Conversion tables vary marginally between test versions to maintain consistent standards.

What this means for preparation: in Listening, moving from 26 to 30 correct answers is a full half band and a half. Those four marks are usually sitting in careless errors, spelling mistakes and singular-plural slips rather than in comprehension failures. Check your error log before assuming you need more practice tests.

Writing: four criteria, equally weighted

Writing is marked by a certified examiner against four criteria, each contributing twenty-five percent:

• Task Achievement (Task 1) or Task Response (Task 2): did you do what was asked, completely, with a clear position?
• Coherence and Cohesion: is it logically organised, appropriately paragraphed, with linking that helps rather than decorates?
• Lexical Resource: range, precision and naturalness of vocabulary, including collocation.
• Grammatical Range and Accuracy: variety of structures and the frequency of errors.

Task 2 counts twice as much as Task 1 in the final Writing band.

A common pattern: a candidate scores 7 on Grammar and Lexis but 5 on Task Response because they wrote fluent English about the wrong thing. The average drags them to 6.0. This is why answering the exact question matters more than sophisticated vocabulary.

Speaking: four criteria over eleven to fourteen minutes

• Fluency and Coherence: can you speak at length without unnatural hesitation, and do your ideas connect?
• Lexical Resource: range and appropriacy of vocabulary, including paraphrase when you do not know a word.
• Grammatical Range and Accuracy: variety of structures and error frequency.
• Pronunciation: intelligibility, stress, rhythm and intonation. A Bangladeshi accent is not penalised; being difficult to understand is.

Speaking is not a knowledge test. There is no correct opinion about renewable energy. The examiner is assessing how you speak, not what you think, so a confidently expressed simple opinion outscores a hesitant sophisticated one.

What band 7 actually means in Writing

According to the official descriptors, band 7 requires that you address all parts of the task and present a clear position throughout, that you produce frequent error-free sentences, and that you use a sufficient range of vocabulary to allow some flexibility and precision.

Note "frequent error-free sentences". Band 7 does not require perfect English. It requires that a good proportion of your sentences contain no errors at all. Candidates writing long, ambitious, error-scattered sentences often score lower than candidates writing shorter, controlled, accurate ones.

Remarking and retaking

If your result is significantly below your expectation, you can request an Enquiry on Results within six weeks. Your paper is remarked by a senior examiner. If the band changes, the fee is refunded. Writing and Speaking are the modules where remarks most often result in a change, because they involve examiner judgement; Listening and Reading are objectively marked.

There is no waiting period before retaking. You can book a new test as soon as you like. Whether you should is a different question: retaking without changing your preparation usually produces the same score.