How Many Words for Each CEFR Level? (A1 to C2 Vocabulary Guide)

Every vocabulary number you'll see online is rounded, estimated, and worth taking with a grain of salt. But there's still a useful range for each CEFR level - and knowing where you are tells you what to study next.

How many words do you actually need to reach each CEFR level? The honest answer is that the question has no single right number - vocabulary size is one signal among many, and the exact count depends on how you count (word families vs. lemmas vs. tokens).

But the ranges below are useful, widely cited, and match what most learners experience in practice. They're worth knowing before you start, because they give you a realistic sense of how big the gap between levels actually is.

The rough vocabulary targets per CEFR level

Here are the numbers most commonly cited in language acquisition research and by exam boards. These count word families (run, running, runs = one family), not individual word forms:

Why the jump between levels gets bigger

Look at the numbers again and the pattern is obvious: each level needs roughly double the vocabulary of the one before it. That's not arbitrary - it reflects how language frequency actually works.

The top 1 000 words in English cover roughly 85% of everyday speech. The next 1 000 get you to about 92%. The next 2 000 take you to 97%. After that, each new word is statistically rarer, so you need more of them to see the same comprehension gains. Moving from B2 to C1 is harder than moving from A1 to A2 not because the words are harder, but because you need twice as many of them for a noticeable difference.

The practical implication: early levels move fast. You can go from zero to A2 in months. Moving from B2 to C1 usually takes years, and most of that time is immersion rather than flashcards. For the research on how SRS and immersion should balance at each level, see the optimal SRS-to-immersion ratio article.

How CEFR maps to IELTS, TOEFL, Cambridge and TOEIC

CEFR is the reference framework - the exams map onto it. Here's the practical mapping most exam boards publish, rounded for clarity:

Where to find words at each level

The vocabulary for each level isn't a secret - there are several public CEFR-tagged word lists (Oxford 5000, English Vocabulary Profile, and others). The challenge is usually access: most are gated, split across PDFs, or buried in academic resources. MindDory publishes free vocabulary lists for every CEFR level plus every major English exam - IELTS, TOEFL, Cambridge FCE/CAE/CPE, and TOEIC - from the same CEFR-tagged dataset, filtered to whichever range you actually need.

Each page is a different filter on the same data: the CEFR pages show exactly one level, and the exam pages show the CEFR ranges that match what each exam actually tests.

Two things the vocabulary number does not tell you

Word count is a decent signal but it's not the whole story. Two learners with the same deck size often end up at very different CEFR levels in practice.

First, recognition and production are different skills. A 4 000-word recognition vocabulary is typical for B2. A 4 000-word active vocabulary - words you can reach for when speaking or writing - is closer to C1. Most learners have about 3–5× more passive than active vocabulary, and the gap gets bigger at higher levels. If you're aiming for a specific exam, active vocabulary is usually what's tested.

Second, vocabulary without fluency is useless. If you know 4 000 words but can't process them at real-time speed, you'll still freeze in conversation. Fluency comes from immersion, output practice, and comprehensible input - not from larger flashcard decks. The vocabulary list is a foundation, not a finish line.

How to actually build vocabulary at each level

The method that works at every level is the same: spaced repetition for building and maintaining vocabulary, paired with immersion for turning that vocabulary into usable fluency. The specific balance should shift as you progress - more SRS at beginner levels, more immersion at advanced levels. The details are in the spaced repetition language learning guide.

One practical habit that matters more than any specific tool: add words to your deck from content you're actually encountering, not from abstract frequency lists. A word you heard in a podcast yesterday is already half-memorized before it hits your deck. A random word from a list has no context and fights for memory space against everything else.

Realistic timelines for each level

For most learners with daily study and some real-language exposure, these are the rough timelines:

These assume roughly 30–60 minutes per day of combined SRS and immersion. They don't assume a gift for languages - they assume consistency. Two weeks of intensive study followed by a month off will always produce worse results than fifteen minutes every day.

Start with your current level

If you're not sure where you are right now, start with the level you think you're at and see how many of the words you already know. If most of them feel familiar, move up. If most feel unknown, move down a level. Browse the full English vocabulary lists →