IELTS vs Duolingo English Test: Which Should You Choose? (2026)
The Duolingo English Test (DET) costs just $30 and can be taken from home. But is it a genuine alternative to IELTS? Here's everything you need to know.
Key difference: IELTS is accepted almost universally for both study and immigration. The Duolingo English Test is accepted by 5,000+ universities but is not accepted for immigration to Canada, UK, Australia, or New Zealand.
Head-to-Head Comparison
| Feature | IELTS | Duolingo English Test (DET) |
|---|---|---|
| Test Fee | US$255+ (varies by country) | US$30 |
| Test Location | Authorised test centre (or IELTS Online for some countries) | At home on your computer |
| Duration | 2 hours 45 minutes | ~1 hour |
| Format | Fixed format, 4 separate sections (L/R/W/S) | Adaptive test — questions adjust to your level. Integrated skills. |
| Scoring | Band 1-9 (0.5 increments) | 10-160 (5-point increments) |
| Sub-scores | 4 skills: L, R, W, S (each 1-9) | 4 sub-scores: Literacy, Comprehension, Conversation, Production |
| Results | 3-13 days | 48 hours |
| Score Validity | 2 years | 2 years |
| Retake Policy | No limit; One Skill Retake available | Up to 3 times per 30 days |
| Institutions | 11,500+ worldwide | 5,000+ worldwide |
| Immigration Use | Yes (UK, Canada, Australia, NZ, etc.) | No |
| Proctoring | Human proctors at test centres | AI proctoring + human review of recording |
| Score Reports | 5 free, then $20 each | Unlimited free score reports |
Score Conversion: IELTS to Duolingo
These conversions are based on Duolingo's published concordance research and are approximate. Always check your target institution's specific requirements.
| IELTS Band | Duolingo Score | CEFR Level | Typical University Requirement |
|---|---|---|---|
| 8.5-9.0 | 145-160 | C2 | Top PhD programmes |
| 8.0 | 135-140 | C1 | Competitive graduate programmes |
| 7.5 | 125-130 | C1 | Top MBA, law, medicine |
| 7.0 | 115-120 | B2+ | Most graduate programmes |
| 6.5 | 105-110 | B2 | Most undergraduate programmes |
| 6.0 | 95-100 | B2 | Foundation / pathway programmes |
| 5.5 | 85-90 | B1+ | Pre-sessional English courses |
| 5.0 | 75-80 | B1 | English language programmes |
| 4.0-4.5 | 55-70 | A2-B1 | Below most university thresholds |
University Acceptance
The Duolingo English Test has seen rapid growth in acceptance since the COVID-19 pandemic. Here's where things stand in 2026:
Major Universities Accepting DET
United States
- Yale University (DET 120+)
- Columbia University (DET 125+)
- Stanford University (DET 120+)
- MIT (DET 120+)
- University of Chicago
- NYU (DET 115+)
- Northeastern University
- Purdue University
Canada
- University of Toronto (some programs)
- University of British Columbia (some programs)
- McGill University (conditional)
- University of Alberta
- University of Calgary
- Dalhousie University
- Many mid-tier universities
UK & Others
- UCL (some departments)
- University of Edinburgh (some programs)
- University of Birmingham
- Some Russell Group universities
- Growing acceptance in Europe
- Limited in Australia/NZ
Important: Many UK universities accept DET for admissions decisions but you will still need IELTS for UKVI to obtain your student visa. Check both university and visa requirements before choosing your test.
Pros and Cons
Duolingo English Test Advantages
- Cost: $30 vs $255+ — over 8x cheaper
- Convenience: Take from home, anytime, 24/7
- Speed: 1 hour test, 48-hour results
- Unlimited free score reports — send to as many schools as you want
- Frequent retakes: Up to 3 per month at minimal cost
- No appointment needed: Take it whenever you're ready
- Adaptive format: Questions match your level, so you're rarely overwhelmed or bored
- Modern format: Feels less formal and stressful
Duolingo English Test Limitations
- Not accepted for immigration (UK, Canada, Australia, NZ)
- Fewer institutions: 5,000 vs 11,500+ for IELTS
- Less established: Some employers don't recognise it
- Strict proctoring rules: Test invalidated if you look away from screen too much
- Technical requirements: Needs stable internet, webcam, microphone
- No handwriting option: Must type all responses
- Less familiar format: Fewer practice resources available
- AI proctoring concerns: Some test-takers report false flags for normal behaviour
Test Format Deep Dive
Duolingo English Test Format
Unlike IELTS, the DET doesn't separate into distinct Listening, Reading, Writing, and Speaking sections. Instead, it uses an integrated, adaptive approach:
Part 1: Adaptive Test (45 minutes)
- Read and Select: Identify real English words from a list (some are made-up words)
- Fill in the Blanks: Complete sentences with missing letters
- Read and Complete: Type the missing word(s) in a passage
- Listen and Type: Type what you hear in a dictation exercise
- Read Aloud: Read a sentence or passage aloud
- Write About the Photo: Describe an image in writing (1+ minute)
- Speak About the Photo: Describe an image verbally (90 seconds)
- Read, Then Write: Read a prompt and write a response (3-5 minutes)
- Listen, Then Speak: Listen to a question and respond verbally (90 seconds)
Part 2: Video Interview + Writing Sample (10 minutes)
- Respond to 2 speaking prompts on camera (1-3 minutes each)
- Write a response to 1 writing prompt (3-5 minutes)
- This section is unscored but shared with institutions alongside your score
Key Differences in Test Experience
| Aspect | IELTS | Duolingo English Test |
|---|---|---|
| Environment | Quiet test centre with invigilators | Your home — must be quiet and well-lit |
| Equipment | Provided (headphones, pencil for paper) | Your own computer, camera, microphone |
| Breaks | No breaks during sections | No breaks (but only 1 hour total) |
| Notes | You can write on question paper | No note-taking allowed |
| Clothing | No restrictions | No headphones or earbuds allowed |
| ID check | Passport/national ID at centre | Photo ID on camera before test |
When to Choose Each Test
Choose IELTS If:
- You need the score for immigration (UK, Canada, Australia, NZ)
- Your target university doesn't accept DET
- You need a UK student visa (IELTS for UKVI required)
- You're applying to professional registration (medical, nursing, etc.)
- You prefer a face-to-face speaking test
- You want the widest possible acceptance
- Your employer specifically requires IELTS
Choose Duolingo If:
- Your target university accepts DET and you don't need it for a visa
- Budget is a concern — $30 vs $255+
- You can't easily travel to a test centre
- You need fast results (48 hours)
- You want to apply to many US universities (unlimited free score reports)
- You want to practice with low-stakes attempts first
- You're comfortable with computer-adaptive testing
Smart strategy: Some students take the Duolingo English Test first as a low-cost screening tool to gauge their level, then take IELTS when they're confident of hitting their target score. At $30 per attempt, DET makes an excellent practice benchmark.