Observed arrival · 2026-11-05
TestYourVocab.org measures the words you know
A free, no-sign-up test estimates receptive English vocabulary through adaptive four-choice questions, with a live estimate, 95% range, CEFR level and percentile.
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- For
- People curious about their English vocabulary
- Worth noticing
- Its scoring model accounts for guessing; the site publishes the formulas and describes the test’s limits.
Field notes
The test draws questions from a bank of 1,000 English nouns and verbs, then estimates vocabulary size against a list of more than 40,000. Its result counts dictionary words separately—for example, “run” and “runner”—and the site advises comparing results within this test rather than against studies that count word families. The linked science section describes the scoring formulas and limitations.
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