How many words do you actually know?
Vocabulary size predicts reading and listening comprehension better than almost any other single measure. This estimates yours in about five minutes.
How it works
Sampled across frequency bands
Words are drawn from across the frequency spectrum, from the first thousand to well past ten thousand, so the estimate is not just testing whether you know common words.
About five minutes
Roughly forty items. Long enough to be stable, short enough that you will actually finish it.
Recognition, not production
It measures the words you understand when you meet them. The words you can actually produce in speech is a smaller set, and a harder thing to test.
Feeds your practice queue
If you have an account, the words you missed go straight into spaced repetition rather than being discarded with the score.
Reading your result
An estimated number of word families you recognise, and what that tends to mean in practice.
Everyday conversation is still effortful. Most gains here come fastest, because these words appear constantly.
You can follow most spoken conversation and simple written text. This is roughly where B1–B2 sits.
Comfortable with news, workplace material and most fiction. Enough for the reading sections of the major exams.
Academic and specialist text is accessible. Further gains matter less than precision and register.
What the number does not tell you
Recognising a word is not the same as being able to use it. A learner with eight thousand words of recognition may still hesitate in conversation, because production is a separate skill that only speaking practice builds.
Treat the estimate as a diagnostic for reading and listening, and as a reason to be sceptical of your own sense of progress — vocabulary growth is one of the few things that keeps improving quietly while fluency feels stuck.
Test your vocabulary
Free, five minutes, and the words you miss become your practice queue.