The short answer is about one hour. The useful answer is that the hour is not one long exam — it is three parts that feel completely different, and knowing which part you are in changes how you should spend the time. Duolingo's own published breakdown splits the session into roughly five minutes of setup, forty-five minutes of scored questions, and a ten-minute sample at the end.
What the hour is made of
The three parts, in the order you meet them:
- 5 min
Setup & ID check
Photograph your ID, let the camera match your face, and clear the room. Not scored — it exists so institutions trust the result.
- 45 min
The graded section
The adaptive part: 11 question types across reading, writing, listening and speaking, interleaved. The only part that produces your 10–160 score.
- 10 min
Writing & speaking sample
Open-ended prompts, recorded and sent unedited to the institutions you share results with.
Only the middle block — the forty-five scored minutes — produces your 10–160 score. The setup does not count against you, and the final sample is judged separately and shared with the institutions you send results to. So while the test is an hour long, the part that decides your number is three-quarters of it.
The 5-minute setup
Before any question, the test checks that it is really you and that the room is clean: you photograph your ID, the camera checks your face against it, and the app confirms you are alone with no second screen or phone in reach. The test runs in a locked-down window — Duolingo cancels the session automatically if you switch to another application. None of this is scored. It exists so that the score is trusted by the institutions who receive it, which is the entire point of taking a proctored test rather than a practice one.
The 45-minute graded section
This is the test. Across these minutes you work through 11 different question types — reading, writing, listening and speaking tasks interleaved rather than grouped — and every answer feeds an adaptive engine that is continuously estimating your level. You will type missing words into damaged passages, decide whether words are real, transcribe sentences you hear, describe a photo aloud, and hold a short spoken conversation with an animated character, among others.
The order and exact count vary between sittings because the test adapts, but the full guide to all 11 question types walks through each one, what it measures, and where people lose marks. Two things are worth knowing about the timing here: most individual tasks are short (a Read & Select word gives you about five seconds; a spoken answer, up to ninety), and you cannot go back. Once a task is done it is gone, which is why rehearsing the format beforehand matters more than it would on a test you could review.
The 10-minute writing and speaking sample
The last ten minutes are open-ended. You get a Writing Sample and a Speaking Sample — longer, less constrained prompts where you write and then speak for a stretch on a given topic. These are recorded and sent, unedited, to any institution you share your results with, so an admissions officer can see and hear a real, unscripted sample of your English rather than only a number. Treat them as the part a human will actually watch.
Why no two tests feel the same length
Because the DET adapts, the experience of the hour differs from person to person even though the clock does not. Answer well and the questions get harder and denser; miss a run and they ease off. The number of items you see is not fixed. What is fixed is the envelope: setup, then the graded window, then the sample, inside about sixty minutes. You do not finish dramatically early or run dramatically over.
How that compares to IELTS and TOEFL
Length is one of the DET's real advantages. A rough comparison:
| Test | Typical length | Where you take it |
|---|---|---|
| Duolingo English Test | About 1 hour | Online, at home, on demand |
| IELTS | About 2 hours 45 minutes | Test centre (or online) |
| TOEFL iBT | About 2 hours | Test centre or at home |
The DET is the shortest of the three and the only one you can start within minutes of deciding to. If you want to place the scores against each other rather than the run times, the DET vs IELTS vs TOEFL comparison has the concordance tables.
What to have ready so the clock is not the enemy
Quick reference: How long is the Duolingo English Test at a glance
| Question | Answer |
|---|---|
| How long is the Duolingo English Test? | About one hour in total: ~5 min setup, a 45-min graded section, and a 10-min writing and speaking sample. |
| Which part is scored? | Only the 45-minute adaptive graded section produces your 10–160 score. |
| How many question types are there? | 11 in the current (post–July 2025) format. |
| Can I pause or go back? | No. The session runs continuously and you cannot return to a finished task. |
| Where do I take it? | Online, on your own computer, at home, at any time. |
| How soon are results? | Within 2 days. |
| Is it shorter than IELTS? | Yes — about 1 hour versus roughly 2h45 for IELTS and 2h for TOEFL iBT. |
| What is the final 10 minutes? | An open Writing Sample and Speaking Sample, shared unedited with your institutions. |
| How much does it cost? | $70 USD per attempt. |
| How long is it valid? | 2 years from the test date. |
Questions people ask
How long does the Duolingo English Test take in total?
About one hour from the moment you begin setup to the end of the speaking sample. Duolingo's published breakdown is roughly 5 minutes of setup and ID verification, 45 minutes of scored questions, and a 10-minute writing and speaking sample. The exact number of questions varies because the test is adaptive.
How much of the hour actually counts toward my score?
The 45-minute middle section is the graded part that produces your 10–160 score. The 5-minute setup is not scored, and the final 10-minute writing and speaking sample is judged separately and shared with the institutions you send results to, rather than folded into the adaptive score in the same way.
How many questions are on the Duolingo English Test?
There is no fixed number. Because the engine adapts to your answers, two people can see different quantities of items. What is consistent is the set of 11 question types it draws from and the roughly 45-minute graded window they fill.
Can I take a break during the test?
No. The session runs continuously and cannot be paused once it starts. The test is also locked down — opening another application or leaving the camera's view can flag or cancel the session. Plan for one uninterrupted hour before you begin.
Can I go back and change an answer?
No. Each task is one-and-done: once you submit or the timer runs out, you move on and cannot return. This is why rehearsing the format matters — there is no review screen to catch a task you misread the first time.
What are the 11 question types?
They span reading, writing, listening and speaking — for example Read & Complete, Read & Select, Fill in the Blanks, Listen & Type, Interactive Reading, Interactive Listening, Speak About the Photo and Interactive Speaking. The question-types guide covers each one and how it is scored.
Did the format change in 2025?
Yes. In July 2025 Duolingo retired Read Aloud and Listen, Then Speak, added Interactive Speaking, and expanded Interactive Listening. Everything on this site reflects that current format. Older guides describing 12 tasks or a "Read Aloud" section are out of date.
How long are the speaking parts?
Individual spoken tasks are short. Describing a photo gives you up to about 90 seconds; each turn in Interactive Speaking is around 35 seconds. The final Speaking Sample is a longer, open-ended recording. None of them are long monologues — the test favours frequent short answers over one big speech.
Does the test get longer if I do well?
Not meaningfully. Doing well makes the questions harder and denser, not the hour longer. The adaptive engine changes difficulty rather than duration, so a strong test taker and a weaker one finish in about the same time.
How quickly do I get my results?
Within 2 days. Because grading is automated and the session is already recorded, you do not wait the week or two that a centre-based test can take. You then send your certified results to institutions from your Duolingo account.
How long are the results valid?
2 years from the date you take the test. If you are applying on a longer timeline, take that window into account — a score taken too early can expire before an admissions cycle you meant it for.
Is the Duolingo English Test shorter than IELTS and TOEFL?
Considerably. The DET runs about an hour; IELTS is roughly two hours forty-five minutes and TOEFL iBT about two hours. The DET is also on demand from home, while the others are more often booked at a centre. The comparison page covers how the scores line up.
Do I need to install anything?
You take the test in a secure environment on your computer with a working camera and microphone. Check Duolingo's current system requirements before test day; the five-minute setup verifies your camera, microphone and connection before the graded section begins.
What happens in the last ten minutes?
An open Writing Sample and Speaking Sample: longer, less constrained prompts where you write and then speak on a topic. These recordings are sent unedited to the institutions you share results with, so a person can review a genuine sample of your English alongside the number.
How can I make the hour feel shorter?
Familiarity. Most of the time pressure comes from meeting a task type for the first time and pausing to work out what it wants. A full-length practice test under the same one-hour shape removes that pause, so on the day only the setup screen is new.