How many words do you actually need for B1 Portuguese?
Ask five people this question and you'll get five different numbers. Here's where those numbers come from, why they disagree, and why vocabulary count is only half the story anyway.
The short version: published estimates put B1 Portuguese at roughly 2,750–3,250 word families, B2 at 3,250–4,000, and A2 at 1,500–2,500. But those ranges hide more than they reveal, and a course that only counts words is measuring the easiest thing, not the most useful one.
The published benchmarks
CEFR itself doesn't specify vocabulary counts — the framework describes what a learner can do, not how many words they know. The numbers below come from corpus-based estimates researchers have backed out from CEFR descriptors, and they vary somewhat by source and by language. For Portuguese specifically:
| Level | Estimated word families | What it roughly means |
|---|---|---|
| A1 | ~500 | Survival phrases, fixed expressions |
| A2 | 1,500–2,500 | Everyday topics, simple past and future |
| B1 | 2,750–3,250 | Opinions, narrative, most daily situations |
| B2 | 3,250–4,000 | Abstract topics, nuance, unfamiliar text |
| C1 | 4,000–8,000 | Near-native range, specialized topics |
Two things worth noticing immediately. First, the jump from A2 to B1 is proportionally smaller than the jump from B1 to B2 — B2 is where vocabulary demands start climbing fastest, because that's the level where you're expected to handle topics you didn't prepare for. Second, these are word families (falar, falo, falou, falando count as one), not raw forms — a vocabulary app that boasts "10,000 words" is very often counting inflected forms separately and overstating the real number by 3–5x.
Why the count alone doesn't tell you much
Here's the part most vocabulary-count comparisons skip: knowing a grammar system and knowing enough words to use it are two separate skills, and courses can be strong at one while weak at the other. A learner can have complete, correct command of the Portuguese subjunctive, the personal infinitive and crase — genuinely B2-level grammar — while still only having a few hundred words to plug into those structures. That learner isn't "B2 with gaps." They're functionally somewhere else: excellent architecture, thin materials.
The reverse also happens. Apps built around spaced-repetition flashcards can push someone past 2,000 words quickly, while that same learner still can't correctly form the future subjunctive or knows only the present tense. Wide vocabulary, narrow grammar.
Neither learner is "further along" than the other in any simple sense — they've just been trained on different axes. CEFR levels describe a blend of both, plus reading, listening, and production, which is exactly why a single word count was never meant to stand in for the whole picture.
Portuguese gives English speakers a shortcut
One genuine piece of good news: Portuguese is unusually generous to English speakers because of shared Latin roots. Words like importante, universidade, possível and nacional are recognizable on sight with no study at all. That means an English speaker's receptive vocabulary — words they can understand when reading — runs meaningfully ahead of their taught vocabulary from any single course. It closes part of the gap between "words I was explicitly taught" and "words I can actually get by with." It doesn't close all of it — production still requires knowing a word well enough to retrieve and conjugate it correctly, not just recognize it — but it's a real advantage worth knowing about if you're triaging where to spend study time.
What this means when you're choosing a course
If a course markets itself by CEFR level, it's worth asking what that claim is actually measuring: total vocabulary taught, grammar topics covered, or something else. The two don't move together, and a course can legitimately reach B2 on one axis while sitting at B1 or even A2 on the other. Most course marketing doesn't distinguish between them, because "B2" sells better as one clean claim than as a breakdown.
We measured our own course against this rather than just asserting a level. Rumo's grammar syllabus is built to complete B2 coverage — present, imperfect and future subjunctive, the personal infinitive, crase, formal register, gíria, irony and subtext are all in there, taught deliberately rather than left to absorption. By vocabulary volume taught, the course now runs to roughly 2,200 words and phrases, plus 151 verbs given with full conjugations, all re-drilled until they stick. Measured against the table above, that puts it at the top of the A2 band and within reach of the B1 range, rather than at the B2 ceiling its grammar syllabus reaches.
That's not a hedge — it's the honest shape of a grammar-first course, and knowing it is more useful than a vaguer, rounder claim. If you want the reasoning behind the number, or you'd rather just see the material, the full 60-chapter grammar library is open to read, and Lição 1 is free forever — no card, no trial to expire.
The practical takeaway
Don't pick a course by its level badge. Ask what's actually being taught — grammar depth, vocabulary breadth, reading length, whether production gets any feedback at all — and match that against what you're actually trying to do with the language. Reading a novel, holding a conversation, and passing an oral exam draw on those four things in very different proportions, and "B1" or "B2" alone won't tell you which you're getting.