Most IELTS candidates prepare for the Speaking test without ever reading the criteria the examiner is actually using. That is like revising for an exam without seeing the mark scheme. You may be practising hard, but you do not know whether the examiner is rewarding what you think they are rewarding.
In this guide, I will walk you through the official IELTS Speaking band descriptors, explain what each criterion actually measures, and show you what a Band 5, Band 7, and Band 9 answer look like in practice. Once you understand how you are marked, your preparation becomes far more targeted.
What Are the Band Descriptors?
The band descriptors are the official marking criteria published by IELTS. Every certified examiner uses them when assessing your performance. They describe what a candidate at each band level — from Band 1 to Band 9 — can typically do.
Crucially, the Speaking test is marked on four separate criteria, and each one carries equal weight — 25% of your score. This is the single most important thing to understand about how Speaking is assessed.
The Four Marking Criteria
| Criterion | What it measures | Weight |
|---|---|---|
| Fluency and Coherence | How easily and logically you speak | 25% |
| Lexical Resource | The range and accuracy of your vocabulary | 25% |
| Grammatical Range and Accuracy | The variety and correctness of your grammar | 25% |
| Pronunciation | How clearly and naturally you are understood | 25% |
Because the four criteria are equally weighted and then averaged, one weak area can hold back your overall score. A candidate who is fluent and accurate but who mispronounces key words will still be capped, because the Pronunciation score drags down the average.
Criterion 1: Fluency and Coherence
This criterion is about two things. Fluency is how easily you produce speech — whether you can keep going without long pauses or constant self-correction. Coherence is how logically you organise your ideas, and whether the examiner can follow you.
| Band | What a candidate at this level does |
|---|---|
| Band 5 | Speaks with noticeable pauses and repetition; struggles to extend answers; ideas may be hard to follow |
| Band 6 | Is willing to speak at length, but with some hesitation and self-correction; may lose coherence under pressure |
| Band 7 | Speaks fluently with only occasional repetition or self-correction; develops ideas logically |
| Band 8 | Speaks fluently with only rare hesitation; organises ideas clearly and develops points fully |
| Band 9 | Speaks fluently and spontaneously with no noticeable effort; organises ideas seamlessly |
What this means for you: Do not try to speak quickly to sound fluent. Speed is not fluency. Examiners are listening for a natural, steady pace and for answers that hold together logically. If you pause briefly to think, that is fine. If you pause for ten seconds between sentences, that is a Band 5 problem.
Criterion 2: Lexical Resource
This is not simply about how many words you know. It is about whether you can use vocabulary accurately, appropriately, and with range. An examiner would rather hear simple vocabulary used correctly than complex vocabulary used wrongly.
| Band | What a candidate at this level does |
|---|---|
| Band 5 | Uses a limited range of vocabulary; may misuse words; struggles with less familiar topics |
| Band 6 | Has enough vocabulary for familiar topics; makes some errors but is generally understood |
| Band 7 | Uses vocabulary flexibly for most topics; uses some less common items with awareness of style |
| Band 8 | Uses a wide range of vocabulary naturally and precisely; handles unfamiliar topics well |
| Band 9 | Uses vocabulary with full flexibility and precision; uses idiomatic language naturally |
What this means for you: Learn topic-specific vocabulary rather than long lists of obscure words. Being able to talk naturally about work, education, technology, and health — and to paraphrase when you do not know a word — is worth far more than memorising a Band 9 word list.
Criterion 3: Grammatical Range and Accuracy
Examiners are looking for two things here: whether you can produce variety of structures, and whether you can produce them accurately. A candidate who uses only simple sentences will not score well, even if they make no mistakes.
| Band | What a candidate at this level does |
|---|---|
| Band 5 | Produces basic sentence forms with some errors; attempts complex sentences unsuccessfully |
| Band 6 | Uses a mix of simple and complex forms, but with limited flexibility and some errors |
| Band 7 | Uses a range of complex structures with some flexibility; errors are rare and do not affect meaning |
| Band 8 | Uses a wide range of structures flexibly and accurately; errors are very rare |
| Band 9 | Uses a full range of structures naturally and accurately throughout |
What this means for you: Accuracy matters more than ambition. A simple sentence said correctly scores better than a complex sentence said incorrectly. Practise a small set of complex structures until they are automatic, rather than attempting many structures and getting them wrong.
Criterion 4: Pronunciation
Many candidates worry that their accent will cost them marks. It will not. IELTS is an international test, and examiners are trained to understand a wide range of accents. What they are assessing is whether you can be understood, and whether you use features like word stress and intonation that make English intelligible.
| Band | What a candidate at this level does |
|---|---|
| Band 5 | Can generally be understood, but mispronunciation causes frequent strain for the listener |
| Band 6 | Uses a range of pronunciation features, but not always accurately or with control |
| Band 7 | Is generally clear and easy to understand; shows awareness of stress and intonation |
| Band 8 | Is easy to understand throughout; uses a full range of pronunciation features effectively |
| Band 9 | Is easy to understand throughout with only very rare lapses; uses pronunciation features skilfully |
What this means for you: Focus on word stress and clear articulation rather than trying to sound British or American. Mispronouncing individual sounds matters far less than getting the stress wrong on a key word — because the wrong stress can make a word unrecognisable.
How the Four Scores Are Combined
The four criterion scores are each given from 0 to 9, then averaged to produce your overall Speaking band score. The average is rounded to the nearest half band, using the same rules as the overall test score.
For example, if you score Band 7 for Fluency, Band 6.5 for Vocabulary, Band 7 for Grammar, and Band 6 for Pronunciation, your average is 6.625 — which rounds to Band 6.5.
The single most important insight from the descriptors is that your weakest criterion determines your ceiling. If you are strong in three areas but weak in one, improving that one area lifts your whole score faster than polishing the others.
Three Common Misconceptions
1. “I need a native accent to get a high score.”
No. Examiners assess intelligibility, not accent. A candidate with a noticeable accent who speaks clearly and uses stress and intonation well will score higher than a candidate with a “native-sounding” accent who mumbles and misplaces stress.
2. “Using big words automatically raises my score.”
No. Misused vocabulary is penalised. Using simple words correctly and naturally scores better than forcing in advanced words and getting them wrong. Range matters, but only when it is accurate.
3. “Fluency means speaking fast.”
No. Fluency means speaking without excessive pausing and without searching for words. Many fast speakers actually score lower on fluency because they hesitate mid-sentence and correct themselves constantly. A steady, comfortable pace is what examiners want to hear.
How to Use the Descriptors in Your Preparation
The most effective way to use this information is to assess yourself against each criterion separately. Record a full practice test and mark yourself honestly on all four. Then focus your preparation on your weakest criterion — that is where your score will rise fastest.
Revisit the descriptors after each practice session. Ask yourself: “Which band am I performing at right now, and what would the next band up look like?” That comparison is how you turn the descriptors from a document into a practical tool.
Related Reading
If you found this useful, these guides cover the practical side of Speaking preparation: