How many people take the Duolingo English Test? (2024)
Approximately 500,000 people took the Duolingo English Test in 2023.
Duolingo does not reveal the exact number of test takers. But, they have been a public company since 2021, so they have had to reveal the amount of revenue they make from the Duolingo English Test. Using that, we estimated the number of tests taken every year.
How we estimated the number of people who take the Duolingo English Test each year
Each quarter, Duolingo is required to publicly present revenue numbers and other information about the company.
They report revenue from the Duolingo English Test as a separate line item:
By dividing these revenue numbers by the price of the test (currently $59 USD), we can estimate how many people took the DET each quarter and then add those numbers together to get an annual estimate.
How fast is the Duolingo English Test growing?
In 2020, approximately 300,000 people took the DET. This means that the number of test takers has grown approximately 66% over the last 3 years!
In 2019, only 15,000 people or so took the test. This corresponds to 2,000% growth in the number of test takers between 2019 and 2020! This was driven by the pandemic, which forced in-person testing centers for exams like TOEFL and IELTS to close.
Duolingo is making a big push to get the DET accepted by more universities. It is already accepted by over 2,500 American schools, colleges, and universities. Duolingo is hiring country managers for countries like the UK, Ireland, and Australia who will be responsible for getting more universities outside the US to accept the test as well. We expect that the number of people taking the DET will only continue to grow.
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