What Is the Difference Between the Estimated and Real Score in Duolingo English Test?

If you have taken the Duolingo English Test (DET) practice test, you may see an estimated score immediately after completing it. But this score is not the same as the certified result you receive after taking the real test. The estimated score is a range designed to give you an idea of your expected performance, while the real score is the official result issued after your test is reviewed.

The difference can sometimes be small, but it is not guaranteed that your real score will exactly match your practice estimate. Understanding how both scores work can help you decide whether you are ready to take the official test.

The simplest way to remember the difference is:

Estimated score = prediction

Real score = certified result

What Is an Estimated Score in the Duolingo English Test?

The estimated score is the result you receive after completing a Duolingo English Test practice test. Instead of giving you one exact number, the practice test can provide a range such as 90–140, 115–135, or 125–150.

This range is designed to give you a general idea of where your English ability may fall on the actual DET.

For example, if your estimated result is:

115–135

it does not mean that your official score will definitely be 125 or 130. It means your practice performance suggests that your real performance could fall within a similar range.

The estimated score should therefore be treated as a guide, not a guaranteed result.

What Is the Real Score?

The real score is the official score you receive after completing the actual Duolingo English Test.

Unlike the practice estimate, the official DET gives you a specific numerical score. The overall DET scale runs from 10 to 160, with scores moving in 5-point increments.

The official result is reviewed before it becomes your certified score, which is why you do not normally receive it immediately after completing the test.

Results are generally described as arriving within approximately 48 hours, although the processing time may be stated as up to 2 working days.

Why Can the Estimated and Real Score Be Different?

The practice test is designed to give you an indication of your likely performance, but it cannot guarantee your official result.

One important reason is that the real test includes open-response questions. Your performance on speaking and writing tasks can depend on the particular topic or prompt you receive.

For example, you might perform very well when an Interactive Writing topic is familiar. However, an unfamiliar subject could make it harder to express your ideas because you may not have enough vocabulary or may misunderstand the prompt.

This means even a small number of questions can influence your overall performance.

According to the extracted competitor information, 1–2 questions can have a substantial effect when a student performs poorly on them, particularly because the DET is relatively short.

How Accurate Is the Estimated Score?

The practice test is not 100% accurate, but its estimated result can still be useful.

Earlier estimates could sometimes cover a very wide range. One historical example was:

90–135

That represents a 45-point range, which makes it difficult to know exactly how close a student is to their target score.

More recent estimates can be considerably narrower. One example is:

110–120

That is only a 10-point range.

Example	Lowest Score	Highest Score	Range Width
Historical estimate	90	135	45 points
More recent estimate	110	120	10 points
Example estimate	90	140	50 points
Example estimate	115	135	20 points
Example estimate	125	150	25 points

A narrower range can make the practice result more useful for judging your readiness, but it still should not be treated as a promise of your official score.

Can Your Real Score Be the Same as Your Estimated Score?

Yes. Your official score can be within the estimated range and may even match the performance you expected from the practice test.

However, it can also be slightly higher or lower.

For this reason, you should avoid assuming that an estimated score is your final DET result.

For example:

Estimated range: 110–120

Your official score might be close to that range, but the practice result itself is not the certified score you submit to a university.

Why Practice and Real Tests Can Produce Different Results

The practice and official tests use similar question formats and difficulty, so the practice test can provide a useful indication of your ability.

However, your performance can change because of:

• The specific questions you receive
• Your familiarity with the topic
• Your vocabulary
• Your understanding of the prompt
• Your speaking performance
• Your writing performance
• Small mistakes during the test
• Your concentration during the exam

Open-response tasks are particularly important because they require you to produce your own answer rather than simply select or complete an answer.

Which DET Skills Affect Your Score?

The Duolingo English Test evaluates four major areas:

Score Area	Related Skill
Literacy	Reading and Writing
Comprehension	Reading and Listening
Conversation	Listening and Speaking
Production	Speaking and Writing

The four core language skills are:

Reading · Writing · Listening · Speaking

The overall score is calculated from the relevant subscores and is reported in 5-point increments.

Duolingo English Test Score Levels

The extracted content describes the following general proficiency ranges:

DET Score	General Level
10–55	Basic
60–85	Intermediate
90–115	Upper-Intermediate
125–160	Advanced

The DET overall scale itself runs from 10 to 160.

These ranges can help you understand your general level, but the score requirement you need depends on the university or program you are applying to.

What Score Should You Aim For?

A commonly mentioned university-admission range is 120–140, but requirements vary.

The extracted competitor information gives these broad examples:

Institution Type	Mentioned DET Range
Community colleges	85–100
Public universities	100–120
Ivy League/top universities	120–160
Common strong admission range	120–140

These numbers should be used as general reference points rather than universal admission requirements.

The most important question is not simply, “What is my estimated score?” It is:

“Does my expected score meet the requirement for my target program?”

How Long Is the Duolingo English Test?

The practice test and official test are not identical in duration.

The extracted information gives:

Test	Duration
Practice Test	45 minutes
Actual DET	60 minutes
Difference	15 minutes

The official test structure is described as:

Section	Time
Introduction & Induction	5 minutes
Adaptive Test	45 minutes
Writing & Speaking Sample	10 minutes
Total	60 minutes

Individual question types can have time limits ranging from approximately 1–3 minutes.

The additional 15 minutes in the official test matters because the real exam includes additional content that is not represented in exactly the same way in the shorter practice experience.

What Happens to Your Score After the Real Test?

After completing the official DET, your score goes through the required review process before becoming your certified result.

The general timeline described in the extracted sources is:

Test completed → Review → Certified score → Usually within 48 hours

The estimated practice score, in contrast, is available immediately after completing the practice experience.

Stage	Result
Finish practice test	Estimated range
Finish official DET	Test submitted for review
Review completed	Certified result
Typical result period	Up to about 48 hours / 2 working days

How Reliable Is the DET Scoring System?

The extracted DuolingoGuides content reports several reliability figures for the DET:

• Internal consistency: 0.76–0.95
• Test-retest reliability: above 0.90
• The test is discussed as having a low Standard Error of Measurement (SEM).
• DET scores are described as correlating with other high-stakes English assessments, including TOEFL iBT and IELTS.

These figures relate to the reliability of the testing system and should not be interpreted as meaning that your practice estimated score is guaranteed to match your official result.

How Can You Use Your Estimated Score Properly?

The best way to use an estimated score is to treat it as a readiness indicator.

For example, suppose your target university requires a DET score of 120.

If your estimated range is:

125–150

you appear to be performing above that target in the practice test.

But if your estimate is:

90–110

you may want to spend more time improving your skills before taking the official exam.

A practice score is therefore more useful when you compare it with your actual target score rather than viewing it in isolation.

What Should You Do If Your Estimated Score Is Lower Than Your Target?

Do not immediately assume that you cannot reach your desired score.

Instead, use the practice result to identify your weaknesses.

The extracted recommendations include:

1. Learn strategies for each question type.
2. Identify your strongest and weakest skills.
3. Create a practice timeline.
4. Review basic grammar mistakes.
5. Build vocabulary every day.
6. Stay focused throughout the test.
7. Practice writing and speaking regularly.
8. Proofread for spelling, capitalization, singular/plural errors, and missing words.

For writing practice, one recommendation is to produce around 5–6 lines on a topic.

For speaking preparation, prepare around 6–7 points for common topics so you have ideas ready when responding.

A Simple Weekly Practice Plan

One suggested schedule divides practice according to your strengths and weaknesses:

Days per Week	Focus
4 days	Weaker writing and speaking skills
3 days	Listening and reading
7 days total	Full weekly practice cycle

You can also include:

• 30 minutes of reading daily
• 1 hour of English-language TV or similar listening exposure daily
• Daily vocabulary practice
• Regular speaking practice
• Frequent proofreading of written answers

The goal is not simply to take practice tests repeatedly. The goal is to identify what is holding your score back and improve those areas.

Is the Estimated Score Your Final DET Score?

No.

The estimated score from the practice test is not your final or certified DET result.

It is a prediction range that helps you understand your likely performance.

The official DET score is the certified numerical result you receive after the actual test has been reviewed.

Remember this distinction:

Estimated Score	Real Score
Practice result	Official test result
Range	Specific number
Immediate	Usually within 48 hours
Not certified	Certified
Helps measure readiness	Used for applications

How Long Are DET Scores Valid?

The extracted information states that Duolingo English Test scores are valid for 2 years.

This means the official score remains valid for that period, subject to the requirements of the institution where you plan to use it.

How Much Does the Duolingo English Test Cost?

The extracted content states an approximate DET cost of $59.

For comparison, the same source describes TOEFL and IELTS as costing approximately $180–$250, although actual fees can vary by location and test center.

Because pricing can change, applicants should verify the current fee before purchasing the test.

How Many Programs Accept the DET?

The extracted competitor content gives two different figures:

• More than 4,900 academic programs globally are described as recognizing the DET.
• Elsewhere, more than 3,500 schools and companies are mentioned as accepting it.

Because these figures differ by how institutions or programs are counted, the safer approach is to check whether your specific university and program accept the DET before relying on the test for an application.

When Was the DET Question Format Updated?

One important date mentioned in the extracted content is:

April 2, 2024

The article states that updated question types/frequencies began from this date.

This is useful context when comparing older practice materials with newer DET preparation resources.

The Bottom Line

The estimated score and real score are not the same thing.

Your estimated score comes from the practice test and is presented as a range, such as 110–120 or 125–150. It gives you a useful indication of your expected performance but is not 100% accurate and is not an official result.

Your real DET score comes from the actual 60-minute test and is reported as a specific score on the 10–160 scale. It is reviewed and normally becomes available within approximately 48 hours.

The smartest approach is to use your estimated range as a readiness guide. Compare it with your target university’s required score, identify weak skills, practice consistently, and then take the official test when your performance is comfortably around your target.