IELTS vs TOEFL iBT vs Cambridge English: Which Exam Should You Take?
IELTS, TOEFL iBT and the Cambridge English exams all test the same four skills but differ in format, scoring, how long results stay valid and how Speaking is assessed. This factual comparison sets the three side by side and gives you a short decision process for choosing.
If a university or employer has told you which test to take, take that one. If you have a choice, the decision usually comes down to four things: how Speaking is assessed (IELTS uses a live examiner, TOEFL iBT records your answers, Cambridge pairs you with another candidate), how the score is reported (IELTS bands 0 to 9, TOEFL iBT 0 to 120, Cambridge a pass grade at a CEFR level with a Cambridge English Scale score), how long the result stays valid (IELTS and TOEFL results are typically treated as valid for two years; Cambridge certificates do not expire), and whether you need a general proficiency benchmark or a score for a specific application. This article compares the three exams factually so you can choose.
The three exams at a glance
| IELTS | TOEFL iBT | Cambridge English | |
|---|---|---|---|
| Versions | Academic and General Training | One version | Separate exams by level: B2 First, C1 Advanced, C2 Proficiency |
| Skills tested | Listening, Reading, Writing, Speaking | Reading, Listening, Speaking, Writing | Reading and Use of English, Writing, Listening, Speaking |
| Delivery | Computer-delivered; paper being retired market by market from mid-2026, with a Writing on Paper option in selected markets | Computer-delivered | Paper or computer |
| Total time | About 2 hours 45 minutes | Typically around 2 hours | Typically 3.5 to 4 hours depending on level |
| Scoring scale | Bands 0 to 9 in half bands, per skill and overall | 0 to 30 per section, 0 to 120 total | Cambridge English Scale score, a grade, and a CEFR level |
| Speaking format | Face-to-face with a live examiner, 11 to 14 minutes | Recorded responses via microphone, scored afterwards | Paired with another candidate, with examiners present |
| Result validity | Typically treated as valid for 2 years | Typically treated as valid for 2 years | Certificate does not expire |
| Pass or fail? | No; you receive a band | No; you receive a score | Yes; a certificate is issued at or above a threshold, with CEFR level shown |
Format and skills
IELTS
IELTS tests four skills in a fixed order. Listening lasts about 30 minutes with 40 questions across four parts. Reading is 60 minutes with 40 questions in three sections; the Academic version uses three long texts, while General Training uses everyday and workplace texts. Writing is 60 minutes: Task 1 (at least 150 words, about 20 minutes; a description of visual data in Academic, a letter in General Training) and Task 2 (at least 250 words, about 40 minutes, an essay, worth double Task 1). Speaking is an 11 to 14 minute interview in three parts: a short interview, a long turn with one minute of preparation, and a discussion. Listening, Reading and Writing are taken on the same day; Speaking may be on the same day or a different one.
TOEFL iBT
TOEFL iBT is a single, fully computer-delivered test with four sections taken in one sitting: Reading, Listening, Speaking and Writing. The reading and listening material is academic in style, with passages and lectures of the kind found in higher education. The Speaking section asks you to respond to prompts into a microphone, including integrated tasks where you read or listen first and then speak. The Writing section similarly includes an integrated task that draws on reading and listening input, alongside a task where you express and support your own view. The whole test typically takes around two hours.
Cambridge English
Cambridge English is not one exam but a suite of level-based exams. The three most relevant for adults are B2 First, C1 Advanced and C2 Proficiency, each designed to certify a specific CEFR level. Every exam has four papers: Reading and Use of English (which combines comprehension with grammar and vocabulary tasks), Writing, Listening and Speaking. The content is pitched at the level of the exam, so C1 Advanced is harder than B2 First by design. Because you choose the level in advance, part of the preparation is choosing the right exam; sitting an exam above your level results in a certificate at a lower level if you reach the threshold for it, or no certificate if you do not.
Scoring scales explained
The three scales measure similar things in different ways, and comparisons between them are approximate. The reference point that connects them is the CEFR (Common European Framework of Reference), which describes six levels from A1 to C2.
- IELTS reports a band from 0 to 9 for each skill, in half bands, plus an overall band that is the average of the four rounded to the nearest half band (.25 rounds up to the next half band, .75 rounds up to the next whole band). In CEFR terms, 5.5 to 6.5 is typically mapped to B2, 7.0 to 8.0 to C1 and 8.5 to 9.0 to C2. You can test how component scores combine with the IELTS band score calculator.
- TOEFL iBT reports a score of 0 to 30 for each of the four sections and a total of 0 to 120. CEFR mappings are published for the total and the section scores; broadly, scores in the 70s to low 90s are typically associated with B2 and the mid-90s and above with C1.
- Cambridge English reports a Cambridge English Scale score, a grade (for example A, B, C, or a level below the target), and the CEFR level you achieved. The Cambridge English Scale runs across all the exams, so a score on B2 First and a score on C1 Advanced sit on the same scale and can be compared directly. Each exam reports results within a defined range of the scale.
The practical consequence: an institution asking for "C1" can usually be satisfied by any of the three, but it will normally state the minimum IELTS band, the minimum TOEFL score or the Cambridge exam and grade it accepts. Get that requirement in writing before you decide.
Validity
IELTS and TOEFL iBT results are typically treated by receiving institutions as valid for two years from the test date; after that, most institutions ask for a new result. Cambridge English certificates do not have an expiry date, although an individual institution may still ask for a result from within a recent period. If you want a certificate to keep on your CV for years, this is the single biggest difference between the exams. If you are applying for something specific in the next twelve months, validity is unlikely to affect your choice.
Speaking: the biggest difference in experience
For many candidates, the Speaking format decides the question.
- IELTS is a one-to-one conversation with a trained examiner. You can ask for a question to be repeated, you get natural turn-taking, and the examiner's reactions give you something to respond to. Candidates who speak better with a real person usually prefer this.
- TOEFL iBT records your responses. You speak into a microphone within a time limit, often in a room where other candidates are doing the same. There is no interlocutor and no chance to clarify. Candidates who find a live examiner stressful sometimes prefer this; candidates who rely on interaction often do not.
- Cambridge English pairs you with another candidate (occasionally three in a group) in front of examiners. Part of the test involves discussing a task with your partner. This rewards interactive skills such as asking for opinions, agreeing, disagreeing and keeping a conversation going, and it introduces a variable you cannot control: your partner.
Typical use
All three are widely recognised for higher education, professional registration and employment. Recognition varies by institution rather than by exam, so the receiving institution's list is the authority.
- IELTS is commonly used for university admission (Academic) and for work, training and migration purposes (General Training). The band system makes it easy for institutions to set minimum overall and component scores.
- TOEFL iBT is commonly used for university admission, particularly where an academic-style, fully computer-based test is preferred.
- Cambridge English is commonly used both for admission and as a lifelong proof of level, since the certificate does not expire. It is also often chosen by learners who want a goal to structure long-term study rather than a score for one application.
How to choose
- Start with the requirement. Check which exams your target institution accepts and the minimum score for each. If only one is accepted, the decision is made.
- Check availability and timing. Look at test dates and results turnaround in your location. IELTS and TOEFL run frequently; Cambridge exams typically run on a fixed calendar of dates.
- Decide how you want to be tested in Speaking. Live examiner, recorded, or paired. Be honest about which format you will perform best in.
- Think about shelf life. If you want a result you can use for years, Cambridge's non-expiring certificate matters. If you need a score for one application, it does not.
- Consider the scoring style. IELTS and TOEFL always give you a result; Cambridge is a pass-or-fail exam at a chosen level, which suits learners who are confident of their level and want a certificate to prove it.
- Take a full practice test for your shortlisted exam. Format familiarity affects performance in all three, and a practice test tells you quickly which format suits you.
Whichever exam you choose, the underlying skills are the same: reading widely, listening to varied accents, writing structured arguments, and speaking regularly with feedback.
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