There is a real number for this, published by the people who run the exams. Start there, and then we get to what it leaves out.
The hours, from the people who set the levels
The Instituto Cervantes runs its own Spanish courses and publishes what each level costs in class time. At its Berlin center the ladder reads: 60 hours to A1, 90 to A2, 120 to B1, 150 to B2, 180 to C1 and 210 to C2.1
| Level | Class hours | What you have when you get there |
|---|---|---|
| A1 | 60 | Prepared sentences. Ordering, greeting, the present tense |
| A2 | 90 | Simple exchanges that stay on script |
| B1 | 120 | A conversation you did not rehearse |
| B2 | 150 | Opinions, argument, most of a working day |
| C1 | 180 | Nuance, humor, professional writing |
Add the first four and a solid B2 is around 420 hours of class. Class only, and nobody gets there on class alone. If you want the comparison with other roads to the same place, there is a piece on schools, tutors and just moving here.
The word “fluent” is doing something dishonest
B2 is what most people mean when they say fluent. The framework’s own authors were more careful than that. Its label is Avanzado, from the English Vantage, and the framework quotes two of its architects on what it represents: Wilkins called it limited operational proficiency, and Trim described it as the adequate response to normal situations.2
Limited operational proficiency is a much smaller promise than fluent, and it is closer to what B2 feels like from the inside.
Where the framework quietly admits the problem
Section 5.2.2.5 covers dialect and accent, and almost nobody reads it. It says two things that matter enormously if your Spanish has to work in Mexico.
First, that grading sociolinguistic ability has proved problematic, and that the bottom of that scale contains only markers of social relationships and politeness conventions.3 Nothing about region, nothing about who you are allowed to say what to.
Second, and this is the sentence: from B2 onward, learners are seen to begin acquiring the ability to deal with variation in speech, along with greater control over register and idiom.3
Begin. At B2. Four hundred and twenty hours in.
So when a B2 speaker sits down at a table in Coyoacán and follows about a third of it, nothing has actually gone wrong. The certificate never claimed that ground.
What each level actually opens in Mexico
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A1 to A2 El mostrador The counter Anything where the other person's script is short and predictable. Taquería, Oxxo, pharmacy for something simple. What breaks: the moment they answer with something not in the script, like a follow-up question about how you want it.
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B1 El problema The thing that went wrong The real threshold, and it is not conversation - it is trouble. A delivery that did not arrive, a charge you do not recognize, a landlord who wants something. What breaks: three people talking at once.
-
B2 La junta The meeting, the argument, the day You can hold a position, disagree, and be funny on purpose about half the time. What breaks: the party. Speed, overlapping voices and a slang layer the exam never mentioned.
-
beyond the scale La sobremesa The hour after the meal Nobody certifies this and everybody notices it. Reading a soft no, catching the teasing, knowing when a diminutive is warmth and when it is condescension. It comes from years in the room, not hours in a chair.
The three-letter word that proves it
Take mero. The Colegio de México dictionary gives it seven senses, five of them marked as popular usage: the plain adjective, then “that is precisely it,” then a la mera hora for the decisive moment, el mero mero for the person in charge, ya mero for nearly, and ahí mero for right there.4
Or luego luego. On its own luego means later; doubled, the same dictionary records it as immediately.5 Saying the word twice reverses the timing.
Neither one is exotic and neither one is in any syllabus. There are a few hundred more where those came from, and that pile is the distance between 420 hours and a dinner table.

Why some people stop
The plateau has a name and it dates to 1972. Larry Selinker called it fossilization: the linguistic material a speaker keeps producing regardless of age or of how much further instruction they receive. His observation at the time was that 95 percent of second-language learners never reach the competence of a first-language speaker.6
The operative clause is the last one. No matter the amount of further instruction. Which is an awkward thing to read next to an hours table, because it means the hours stop paying somewhere and no level descriptor tells you where. Hour 500 is not automatically worth more than hour 300. What decides it is whether anything inside those hours is pointing your errors out to you.

Levels are useful for buying a course and useless for describing your week. So stop asking what level am I, and ask this instead: can I sort out a problem on the phone, with someone I do not know, without planning the sentences first? It is a harder test than it sounds, because there is no face to read and no way to nod along until the moment passes.
A realistic timeline
Nobody has 420 free hours sitting in a block, so the real variable is the calendar you spread them over.
| Your week | Rough time to B2 |
|---|---|
| Two hours of class, no other Spanish | Several years, and often never, because the input is too thin |
| Four hours of class plus daily media | Two to three years |
| Living in Mexico, working in English, one tutor a week | About two years, with a good accent and stubborn grammar |
| Living in Mexico, working in Spanish | Under a year to functional, and the gaps close in the direction of whatever your job is |
The last row is why people who move here overtake people who studied longer, and it has nothing to do with motivation. Their hours stop being something on a calendar. Where you live decides how unavoidable those hours get.

If you want the honest short answer: about two years to comfortable, if the two years contain Mexican voices most days. And then a long, pleasant tail where you keep finding out that a word you have known since month three has a sixth meaning that everybody except you was already using.
Sources
-
Metodología y niveles de los cursos de español - Instituto Cervantes de Berlín ↩
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Marco común europeo de referencia para las lenguas, Capítulo 3. Niveles comunes de referencia - Centro Virtual Cervantes ↩
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Marco común europeo de referencia para las lenguas, Capítulo 5, sección 5.2.2.5 Dialecto y acento - Centro Virtual Cervantes ↩ ↩2
-
Diccionario del español de México, mero - El Colegio de México ↩
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Diccionario del español de México, luego - El Colegio de México ↩
-
Implication of IL Fossilization in Second Language Acquisition - Xueping Wei, English Language Teaching, 2008, reporting Selinker (1972) ↩
Test yourself
Tap an answer.
Alguien te dice: nos vemos luego luego. ¿Qué significa?
¿Quién es el mero mero de la oficina?
Tienes un certificado B2 y aun así te pierdes en una comida familiar. ¿Por qué?
Llevas tres años en México y cometes los mismos errores de siempre. ¿Cómo se llama eso?
Quieres una meta útil en vez de un nivel. ¿Cuál sirve más?










