What the test is and who takes it
The Duolingo English Test (DET) is an online English test. You take it at home on a computer, not in a test centre. The whole test takes about one hour.
It measures your English across reading, writing, listening, and speaking. Many tasks are integrated — one task can ask you to read and write, or to listen and speak — so it checks how you use English together, not one skill at a time.
People take the DET for many reasons, but the most common is university admission. Many universities and colleges around the world accept it as proof of English. It is a sister exam to the tests you may already know — see our full IELTS Speaking guide for a comparison of what the spoken parts feel like.
Adaptive scoring and the 10–160 scale
The DET is computer-adaptive. This means the test changes as you go. When you answer well, the next questions get harder. When you struggle, the next questions get easier. The test uses your answers to find your level quickly.
Because of this, two people can see different questions and still get a fair score. There is no single fixed set of questions for everyone.
Your result is an overall score from 10 to 160, in 5-point steps (for example 95, 100, 105). A higher number means stronger English.
The overall score comes with four subscores. Each one looks at a different group of skills, so you can see where you are strong and where to improve:
| Subscore | What it reflects |
|---|---|
| Literacy | Your reading and writing together — understanding text and writing clearly. |
| Comprehension | Your reading and listening together — understanding what you read and hear. |
| Conversation | Your listening and speaking together — following and taking part in spoken English. |
| Production | Your writing and speaking together — producing longer, clear written and spoken English. |
Notice that each skill (reading, writing, listening, speaking) feeds into two subscores. That is why integrated tasks matter: they build several subscores at once. To understand how scoring works in general, and how Aflo grades your English, see how Aflo scores your English.
How the score maps to CEFR
The CEFR is a common way to describe English levels, from A1 (beginner) up to C2 (near-native). It is used across many exams, so it helps you compare your English on one shared scale.
The DET score maps onto these CEFR levels in general terms: a low DET score sits at a lower CEFR level, a mid score sits around the middle (roughly B1–B2, an independent user), and a high score reaches the upper levels (C1–C2).
The exact score-to-CEFR points can be adjusted over time, and each university sets its own required score. So use CEFR as a rough guide to your level, and always confirm the exact number your chosen institution wants directly from them.
The skills the test demands
Because the DET is short, adaptive, and covers four skills, it rewards English you can use quickly and clearly under time pressure. You do not get long to think. The general skills that help most are:
- Quick, accurate reading. You need to read words, sentences, and short texts fast and still understand them. Weak vocabulary slows you down the most.
- Careful listening. Audio may play once. You must catch meaning the first time, so training your ear matters.
- Clear speaking. You speak into a microphone with little prep time. Aim to be easy to understand — clear sounds, steady pace — rather than perfect.
- Organised writing. You type responses, sometimes quickly. Clear, well-ordered sentences score better than long, messy ones.
- Working under time pressure. Every task is timed. Staying calm and moving steadily is a skill in itself.
- A good, active vocabulary. Strong word knowledge helps every single task, from reading to speaking.
Notice this list is about skills, not exact tasks. That is on purpose — see the note at the end about checking the official site for the current task formats.
How to prepare — a simple plan
You improve by practising the skills the test rewards, not by memorising answers (the adaptive test makes memorising almost useless). Here is a plan that works:
- Build vocabulary every day. Learn and review common words in short daily sessions. This lifts reading, listening, speaking, and writing at the same time.
- Practise all four skills, not just your favourite. Because each skill feeds two subscores, a weak skill drags down more than you expect.
- Speak out loud and record yourself. Get used to talking to a microphone with little prep. Listen back for clarity and pace.
- Write short, clear responses against a timer. Practise organising an answer fast: one clear idea, in order, with a start and an end.
- Get comfortable with the computer and time pressure. Do timed practice so the clock feels normal on test day.
- Check your weak subscore and focus there. If Production is low, do more speaking and writing; if Comprehension is low, do more reading and listening.
DET speaking and writing prep guides are part of Aflo's resources, so you can drill the skills that build each subscore. The hardest part alone is knowing what to fix — honest feedback on your speaking and writing shows you the exact points to improve.
Check the official site for current task formats
This guide covers the stable facts about the DET: that it is online and at home, about an hour long, computer-adaptive, scored from 10 to 160 in 5-point steps, with four subscores that map to CEFR.
Before your test, always check the official Duolingo English Test website for the current task formats, rules, and requirements. Look at their up-to-date practice materials so you meet the exact tasks you will see on the day. Treat the skills in this guide as your training targets, and the official site as your source for the current format.
Keep reading
Build each skill for the test:
Frequently asked questions
What is the Duolingo English Test?
It is an online English test you take at home on a computer, in about one hour. It measures reading, writing, listening, and speaking, often in integrated tasks, and is accepted by many universities.
How is the Duolingo English Test scored?
You get an overall score from 10 to 160, in 5-point steps. The overall score comes with four subscores: Literacy, Comprehension, Conversation, and Production.
What does 'computer-adaptive' mean?
The test changes as you answer. If you do well, the questions get harder; if you struggle, they get easier. This helps the test find your level quickly, so different people may see different questions.
How does the score map to CEFR?
In general terms, a low score sits at a lower CEFR level, a mid score sits around B1–B2 (an independent user), and a high score reaches C1–C2. Use CEFR as a rough guide, and confirm the exact score your university requires with them directly.
Where can I find the current task types?
The DET updates its exact task types from time to time, so always check the official Duolingo English Test website for the current formats, rules, and practice materials before your test.