Best English test for US universities: IELTS, TOEFL, DET or PTE
Compare IELTS Academic, TOEFL iBT, Duolingo English Test and PTE for US university admission: scoring, speaking, results speed and how acceptance differs.
There is no single best test — the US institution decides, and most now accept IELTS Academic, TOEFL iBT, the Duolingo English Test and PTE Academic. TOEFL and IELTS are accepted almost everywhere; DET and PTE are faster but not yet universal, so check that every programme on your list accepts your test before booking.
US universities once meant TOEFL, and many still write their English requirement as a TOEFL number. Today most also accept IELTS Academic, and a growing share accept the at-home Duolingo English Test and PTE Academic. With no national standard and acceptance still varying by school and programme, the right test is simply the one every institution on your shortlist accepts.
At a glance
All four test the same four skills and are computer-marked at least in part; the differences that decide your choice are how Speaking is assessed, how fast results arrive and — the point that trips people up — whether every institution on your list actually accepts the test.
| IELTS Academic | TOEFL iBT | Duolingo English Test | PTE Academic | |
|---|---|---|---|---|
| Score scale | 0–9 bands, per skill and overall, in half-band steps | 0–120 total, 0–30 per section | 10–160 total in 5-point steps, plus subscores | 10–90 (Global Scale of English), per skill and overall |
| Skills tested | Listening, Reading, Writing, Speaking | Listening, Reading, Writing, Speaking | Adaptive — one session mixing all four skills | Listening, Reading, Writing, Speaking (integrated tasks) |
| Speaking assessment | Live, with a human examiner (in person or video call) | Recorded; scored by human raters and AI | Recorded; automated scoring with proctor review | Recorded; fully automated scoring |
| Marking | Human examiners mark Writing and Speaking | Human raters and AI | Automated (AI), human-proctored | Fully automated (AI) |
| Sitting length | About 2 h 45 min (Speaking may be a separate day) | About 2 hours | About 1 hour | About 2 hours |
| Where you sit it | Test centre (computer or paper); at-home IELTS Online exists but is not universally accepted | Test centre, or TOEFL iBT Home Edition | Online, at home, on demand | Test centre (computer) |
| Results turnaround | Computer-delivered: a few days; paper: about 13 days | Roughly a week | About two days | Typically about two days |
| Retake rules | Full retake, no attempt limit; One Skill Retake not offered in the USA | Full retake; MyBest combines your top section scores over two years | Full retake, with a capped number of attempts per period | Full retake once your scores are released |
| US acceptance | Near-universal — thousands of institutions, including all Ivy League | Near-universal; the scale many minimums are written in | Broad and growing, but not universal — confirm per programme | Widely accepted and growing — confirm per programme |
Structural facts only. Every US institution sets its own minimum score, per test, and can change it — verify on your programme's own page. Lengths and turnaround times are typical, not guaranteed.
Which should you choose?
Choose IELTS Academic or TOEFL iBT if…
- You want a test accepted at virtually every US institution, including all Ivy League schools.
- Your programme states its minimum in TOEFL points, or you may also apply for scholarships, graduate funding or professional licensure that accept fewer tests.
- You would rather your Speaking be assessed at least partly by a human examiner or rater, not by software alone.
Choose the Duolingo English Test or PTE Academic if…
- Every school and scholarship on your shortlist explicitly lists the test — you have checked each one, not assumed acceptance.
- You want the fastest, lowest-cost route, or need to test from home on short notice (the Duolingo English Test).
- You are comfortable with fully computer-scored Speaking and integrated tasks.
The institution decides — there is no national standard
The United States has no central English-language rule for admission. Each university, and often each individual department, decides which tests it accepts and what score it wants. TOEFL was the historical default — ETS is an American organisation and many minimums are still written in TOEFL points — but IELTS Academic is now accepted at thousands of institutions, including every Ivy League school, and PTE Academic and the Duolingo English Test are accepted by a fast-growing list too. What still differs between them is breadth: TOEFL and IELTS are accepted almost everywhere, while acceptance of DET and PTE, though wide, is not yet universal.
The practical consequence is that you should build your shortlist first, then read each programme's admissions page for the exact tests and scores it accepts. Confirm at programme level rather than the general admissions page, because departments — graduate programmes especially — can set higher bars or accept fewer tests than the university's headline policy. Where a page is unclear, the official source is the institution's own admissions office, not a third-party summary.
Why concordance matters — and its limits
Because so many US minimums are stated in TOEFL points, candidates who sit IELTS, PTE or the Duolingo English Test naturally want to know roughly where their score lands on the TOEFL scale. That is what the concordance table below is for: ETS and the IELTS Partners published a joint concordance from candidates who took both tests, and Pearson and Duolingo each publish their own IELTS mappings for PTE and DET.
The limit is important. Concordances are approximate, and institutions generally do not convert one test into another. If a programme lists a separate minimum for TOEFL and for IELTS, you must meet the minimum for the test you actually sit — a converted figure does not substitute for it. Treat the table as orientation for choosing a target, not as evidence a school will accept a score it never asked for, and never assume a programme that lists TOEFL will honour a converted DET or PTE result.
How the tests differ in practice
Speaking is the clearest fork. IELTS uses a live examiner — in person or over a video call — while TOEFL records your responses and marks them with a mix of human raters and AI, and both PTE and the Duolingo English Test score speech entirely by software. If you prefer speaking to a person, that points to IELTS; if you would rather speak to a screen, the others suit you better.
Speed, cost and delivery are the other practical levers. The Duolingo English Test is the quickest and cheapest, taken at home on demand with results in about two days; PTE also returns results fast; TOEFL offers a Home Edition; and IELTS Speaking may fall on a separate day from the other papers. Weigh these against acceptance, though — the fastest, cheapest test is no use if a school on your list will not take it.
Which IELTS, and the at-home caveat
For US admissions you want IELTS Academic, not General Training — General Training is built for work and migration routes and is not accepted for university admission, nor for professional licensure such as nursing. If you are weighing tests for a licensure pathway rather than pure admission, check the regulator's accepted-test list separately, as it is often narrower than a university's.
Be careful with at-home formats specifically. IELTS Online, the TOEFL iBT Home Edition and the inherently at-home Duolingo English Test are accepted by many schools but not all, and acceptance of an at-home version can differ from the centre-based test and from immigration or licensure uses. A university may take centre-delivered IELTS but not IELTS Online. Confirm the exact format — not just the test brand — appears on your programme's accepted list before you book.
Rough score concordance across the four tests
Because many US minimums are written in TOEFL points, here is roughly where a given IELTS Academic band lands on the other scales.
| IELTS Academic band | TOEFL iBT | PTE Academic | Duolingo English Test |
|---|---|---|---|
| 8.0 | 110–120 | ≈ 79 | ≈ 135 |
| 7.5 | 102–109 | ≈ 73 | ≈ 130 |
| 7.0 | 94–101 | ≈ 65 | ≈ 120–125 |
| 6.5 | 79–93 | ≈ 58 | ≈ 115–120 |
| 6.0 | 60–78 | ≈ 50 | ≈ 105–110 |
The TOEFL column is the ETS–IELTS Partners concordance; the PTE and Duolingo figures are the providers' own published mappings and are approximate. US institutions set a separate minimum for each test and generally do not convert one test's score into another — meet the exact minimum your programme lists for the test you actually sit.
Common questions
Is the Duolingo English Test accepted by US universities?
Many accept it, and the list is growing quickly, but it is not universal: some graduate programmes, scholarships and professional-licensure boards still do not take it. Check each programme's own accepted-test list, and do not assume a school that accepts TOEFL will accept the Duolingo English Test — the two are separate decisions.
Is PTE easier than IELTS?
Neither is officially easier. They test the same four skills against the same underlying standard, and Pearson publishes an IELTS–PTE concordance so a given IELTS band maps to a PTE score. What differs is format: PTE is fully computer-scored with integrated tasks and no human examiner, which suits some candidates and not others.
Do US universities prefer TOEFL over IELTS?
No. TOEFL is American and was the historical default, so many minimums are still written in TOEFL points, but the large majority of US universities that accept TOEFL also accept IELTS Academic, including every Ivy League school. Sit whichever suits you and meets your programme's stated minimum.
Is there a minimum English test score for the US F-1 student visa?
No. The F-1 student visa sets no test-score minimum. Your university assesses English before issuing the Form I-20, and the consular interview checks the I-20 — so the score that matters is your programme's, not the visa's.
Which IELTS do I need for US universities — Academic or General Training?
Academic. General Training is for work and migration routes and is not accepted for US university admission, nor for professional licensure such as nursing. Listening and Speaking are identical across the two variants, but Reading and Writing differ, so practise the Academic papers.
Can I use an at-home test like the Duolingo English Test or IELTS Online?
Sometimes. At-home formats are accepted by many schools but not all, and acceptance can differ from the centre-based test and from licensure or immigration uses. Confirm the exact format — not just the test brand — is on your programme's accepted list before booking.
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