International universities often ask students to pass an English proficiency test before starting a degree taught in English. The Duolingo English Test (DET) is becoming an increasingly accepted option because it is fully online, faster, and often more affordable than other English exams.
To help you understand how it works, this guide explains the Duolingo English Test scoring system, and how universities use your results during admissions.
Key takeaways:
- Universities use your score to assess whether you are ready to study in their English programme.
- The Duolingo English Test uses a scoring scale from 10 to 160 and evaluates your English skills
- It uses an adaptive questions method that becomes easier or harder depending on your performance.
- More than 6,000 universities and programmes worldwide now accept the Duolingo English Test, especially in the United States.
How do universities use English proficiency tests?
Universities use English proficiency tests to assess whether international students they plan to admit can actually understand the language so they complete the degree. In short, admissions teams want to know that you can:
- understand lectures and academic materials,
- participate in discussions and group work,
- write essays, reports, and assignments in English,
- communicate effectively during your studies.
Universities only accept results from approved English proficiency tests to ensure language assessments remain accurate and reliable.
Most of the universities set minimum score requirements for tests such as the Duolingo English Test, IELTS, or TOEFL. The minimum score you must have usually depends on the university, study level, and programme competitiveness.
Requirement | What universities check |
Minimum score | Whether your English level meets admission requirements |
Approved test provider | Whether the test is officially recognised by the university |
Score validity | Most English test scores are valid for 2 years |
Programme requirements | Some degrees may require higher scores, especially in law, medicine, or business |
Adaptive testing: A Duolingo English Test advantage
One of the biggest differences between the Duolingo English Test and traditional English proficiency exams is that the Duolingo English Test uses adaptive testing.
What this means is that instead of giving everyone the same questions, the Duolingo English Test changes them as you go, based on how well you answer:
- if you answer correctly, the questions become more difficult
- if you struggle, the questions become easier
Because of this system, the Duolingo English Test is shorter than many traditional English exams while still providing detailed conclusions.
Adaptive testing feature | What it means |
Correct answers | Questions become more difficult |
Incorrect answers | Questions become easier |
Personalised difficulty | The test adjusts to your level |
Faster assessment | Accurate scoring in less time |
How the Duolingo English Test scoring system works
The Duolingo English Test uses a scoring scale from 10 to 160 to measure your English proficiency. Scores are reported in increments of 5.
Instead of testing each language skill separately for long periods, the Duolingo English Test combines skills throughout the exam to measure how you use English in real situations. And, as we’ve said earlier, questions become harder or simpler based on how you answer.
Duolingo English Test score scale compared with IELTS/TOEFL
Duolingo English Test scores range from 10 to 160 and are aligned with international English proficiency benchmarks such as the CEFR, IELTS, and TOEFL.
Duolingo English Test score | CEFR level | IELTS Academic | TOEFL iBT |
155–160 | C2 | 8.5–9 | 119–120 |
145–150 | C1–C2 | 8 | 113–118 |
135–140 | C1 | 7.5 | 104–112 |
125–130 | C1 | 7 | 93–103 |
115–120 | B2–C1 | 6.5 | 82–92 |
105–110 | B2 | 6 | 70–81 |
95–100 | B1–B2 | 5.5 | 59–69 |
85–90 | B1 | 5 | 47–58 |
75–80 | A2–B1 | 4.5 | 35–46 |
65–70 | A2 | 4 | 24–34 |
10–55 | A1–A2 | Below 4 | 0–23 |
Not every university uses Duolingo English Test scores in exactly the same way, so always check the official admissions requirements for your programme.
Individual subscores
Your Duolingo English Test score is based on four main English language skills. Each individual subscore is graded on a scale from 10 to 160.
Individual subscore | Skill assessed |
Speaking | Your spoken English skills |
Writing | Your written English skills |
Reading | Your understanding of written English |
Listening | Your understanding of spoken English |
According to Duolingo, the Overall Score is an average of the four Individual Subscores, rounded to the nearest 5. Because the test is adaptive, your performance during the exam affects the difficulty of future questions.
Integrated subscores
Besides the main skill scores, you’ll also receive integrated subscores. These combine two language skills to show how effectively you can use English in a practical academic context.
Each Integrated Subscore is a simple average of two Individual Subscores.
Integrated subscore | What it measures | Skills combined |
Literacy | Your proficiency in written English | Reading + Writing |
Comprehension | Understanding spoken and written English | Listening + Reading |
Production | Expressing yourself clearly in English | Speaking + Writing |
Conversation | Interactive communication skills | Listening + Speaking |
Universities use these scores to understand how comfortably you can communicate in academic settings, such as understanding lectures, participating in seminars, writing assignments, or collaborating with classmates.
How are the questions graded?
According to Duolingo’s official Duolingo English Test blog, some questions have clearly correct or incorrect answers, while others allow for more individual variation in your response.
Typically, reading and listening questions have only one correct answer, or a very limited range of acceptable answers. Speaking and writing tasks require more subjective evaluation, so the Duolingo English Test uses both AI scoring technology and human review to assess your performance accurately.
For speaking and writing questions, the test evaluates:
- content and relevance of your response
- coherence and organisation of ideas
- vocabulary and grammar accuracy
- fluency and pronunciation in speaking tasks
The DET’s AI scoring system analyses your answers across different skills and difficulty levels throughout the exam. Human reviewers and proctors also help verify test integrity and check for suspicious behaviour or rule violations during the online test.
Question type | How it is graded |
Reading and listening | Mostly objective questions with clear correct answers |
Speaking and writing | Evaluated for coherence, grammar, vocabulary, fluency, and content |
Test security | Monitored using AI systems and human review |
What score do I need?
The Duolingo English Test is scored on a scale from 10 to 160. In general, scores above 55 demonstrate basic English proficiency, while scores above 140 indicate a very advanced command of English.
The score you need depends on the university and study programme you are applying to. Many universities require minimum Duolingo English Test scores between 90 and 120, while highly selective universities and competitive programmes often ask for scores above 120.
Duolingo English Test score | Typical English level | Common university expectations |
10–55 | Basic (A1–A2) | Usually below university admission requirements |
60–85 | Intermediate (A2–B1) | May qualify for pathway or foundation programmes |
90–110 | Upper intermediate to strong B2 | Accepted by many universities |
115–130 | Advanced academic English | Common requirement for competitive programmes |
135–160 | Very advanced English proficiency | Strong scores for highly selective universities |
Because every university sets its own English language requirements, always check the official admissions page for your programme before booking the test.
You can use the Duolingo English Test concordance table earlier in this guide to compare Duolingo English Test scores with IELTS, TOEFL, and CEFR levels.
How to take the Duolingo English Test
The Duolingo English Test is fully online, which means you can take it from home without travelling to a testing centre or booking an in-person appointment. Many students choose the Duolingo English Test because it is flexible, faster to schedule, and often more affordable than traditional English proficiency exams.
Because the test is completed remotely, Duolingo has strict rules to protect the integrity of the exam. You’ll need a stable internet connection, a quiet room, valid identification, and equipment that meets the test requirements.
Why choose the Duolingo English Test?
Many students choose the Duolingo English Test because it is fully online, faster to complete, and usually cheaper than English proficiency exams like IELTS or TOEFL.
One of the biggest advantages is convenience. You can take the Duolingo English Test from home, receive your results within around two days, and send your scores to an unlimited number of universities at no extra cost.
For students applying to multiple universities, unlimited score reporting can make the Duolingo English Test significantly more attractive.
English test | Average test fee | Free score reports |
Duolingo English Test | Around 70 USD | Unlimited |
TOEFL | Around 250–270 USD depending on country | 4 free score reports |
IELTS | Around 220–340 USD depending on location | Usually 5 free score reports |
* Approximate costs valid as of April 2026
In conclusion…
The Duolingo English Test is an English proficiency exam designed to measure how well you can use English language in academic and everyday situations. It has an adaptive scoring system, integrated subscores, and 10–160 scale that help universities understand your reading, writing, listening, and speaking abilities.
Before booking the test, always check the official page of your university or study programme to confirm which Duolingo English Test score you need.
FAQs - Frequently asked questions
What is a good Duolingo English Test score?
A “good” Duolingo English Test score depends on the university and programme you are applying to. Most universities accept scores between 100 and 120, while more competitive programmes may require higher results.
How long are Duolingo English Test scores valid?
DET scores are usually valid for 2 years from the test date. After two years, your Duolingo English Test Certificate will be marked as “expired”, and you will no longer be able to share your DET Certificate with third parties.
