IELTS Format: IELTS vs. TOEFL — Key Differences

A common assumption among candidates choosing between IELTS and TOEFL is that the two tests measure the same thing in roughly the same way, and that the choice mostly comes down to which one is more convenient to book locally. In practice, the two tests differ meaningfully in format and in some of the specific language skills they emphasise, to the point that genuine strengths in one format don't automatically transfer to the other — a candidate who is a confident, natural conversationalist but uncomfortable speaking to a microphone alone in a booth, for instance, may find the two tests' Speaking sections feel like different skills entirely, not just different question types.

The most significant structural difference is Speaking. IELTS Speaking is a live, face-to-face (or in some formats, live video) interview conducted and scored by a single human examiner across three parts — a short introductory conversation, an individual long-turn on a cue card topic, and a more abstract two-way discussion. TOEFL Speaking, by contrast, is entirely computer-delivered: candidates respond to recorded and on-screen prompts by speaking into a microphone, with no live interlocutor present during the response itself, and these recorded responses are later assessed by raters. This changes the actual skill being tested in a real way — IELTS Speaking rewards the ability to sustain a live, responsive conversation with a present listener, including picking up on and responding to follow-up questions in the moment, while TOEFL Speaking rewards the ability to organise and deliver a clear, well-structured spoken response to a fixed prompt within a set time, without the real-time adjustment a live interviewer's reactions would otherwise prompt.

Delivery format also differs in an important practical way. IELTS is offered in both computer-delivered and paper-based formats in most locations, giving candidates who prefer handwriting or find screen-reading fatiguing a genuine alternative. TOEFL iBT is administered exclusively on computer, with no paper-based option, so this specific choice doesn't exist for TOEFL candidates the way it does for IELTS candidates choosing their preferred format.

The two tests also use entirely different scoring scales, and converting between them precisely is genuinely difficult, not merely a matter of a simple formula. IELTS reports an overall band from 0 to 9 in half-band increments, alongside a band for each of the four skills. TOEFL iBT reports a total score from 0 to 120, made up of four section scores each out of 30. Because the two tests weight and structure skills differently, published concordance or comparison tables (produced by testing organisations and sometimes referenced by institutions) offer an approximate correspondence between score ranges rather than a mathematically exact conversion, and institutions that accept both tests set their own accepted-score thresholds for each independently rather than deriving one from the other.

Writing also differs in what it's actually asking a candidate to do, beyond both simply being called "Writing." IELTS Writing Task 1 (in the Academic version) asks candidates to describe, summarise, or compare visual information such as a chart, graph, table, or diagram, entirely from the visual itself; Task 2 is an independent opinion or argument essay. TOEFL Writing includes an integrated task that requires reading a short academic passage, listening to a related lecture that often challenges or complicates the reading, and then writing a response that synthesises specific points from both sources — a task that draws on reading and listening comprehension as much as writing ability, and that has no direct equivalent in the IELTS Writing section.