It is the first question many people ask before committing to lessons, and it is a fair one. Time is finite; so is money. Before investing either, you want a realistic answer — not an optimistic one dressed up to win your business.
After two decades of teaching adult learners in London, I can give you one.
The short answer
How long it takes to learn German depends on three things: the time you invest, your level of commitment, and your aptitude. These are not equal in importance. Time and commitment are largely within your control. Aptitude varies, but in my experience it is rarely the deciding factor.
This article gives realistic timelines for A1, A2, and B1 — the three levels most relevant to working professionals learning German. The figures are based on two 90-minute lesson per week, combined with approximately 90 minutes of self-study between sessions. They reflect what I observe consistently in my teaching, adjusted for the reality of learning in a city where German is not the language of the street.
Why the environment matters
Learning German in London is not the same as learning German in Frankfurt. In a German-speaking city, the language is present without effort: on signs, in shops, in conversations overheard on the U-Bahn, in the radio playing in the background. Incidental exposure supplements every lesson. Over months and years, it adds up considerably.
In London, that exposure does not exist unless you create it. This is neither a reason to avoid learning German nor an excuse for slow progress — many of my students have reached high levels without ever setting foot in Germany — but it is important context when reading any timeline, including mine. Every figure in this article assumes a learner who must manufacture German exposure deliberately rather than absorb it passively. This is achievable. It simply requires intention.
The variables that determine your pace
Lesson frequency and duration
The timelines below assume two 90-minute lesson per week. This is the arrangement that works best for most working professionals: structured enough to drive consistent progress, flexible enough to accommodate a full schedule.
If your circumstances allow more lessons per week, progress accelerates noticeably — not simply because more ground is covered in a week, but because material is revisited while it is still recent. Spaced repetition, even informal, embeds vocabulary and grammar far more reliably than longer gaps between sessions.
Self-study between lessons
The most significant variable I have observed, outside the lesson itself, is what students do between sessions. This is where the timelines in this article are made or broken.
Approximately 90 minutes of focused self-study between each lesson — an amount equal to the lesson itself — produces consistently faster progress than the lessons alone. This does not mean 90 minutes of textbook drilling. Reviewing vocabulary, completing set exercises, reading a short German article, watching a German news clip with German subtitles, or listening to a German podcast on a commute all count. What matters is that German appears in your week in the gaps between lessons, not only during them.
Students who maintain this habit move faster than their aptitude alone would predict. Students who skip it find that lessons begin with review of forgotten material rather than progression to new ground. The lesson is the engine; self-study is the fuel.
Homework
I set homework, and I expect it to be completed. Grammar explained in a lesson takes time to become intuitive; that process requires active use, not repetition of the explanation. Homework is the mechanism through which what is understood in a lesson becomes available in real conversation. Skipping it regularly has a compounding cost that most students underestimate.
Prior foreign language experience
If you have already learned another foreign language to a working level — French, Spanish, Italian, or any other — learning German will feel more familiar in its mechanics. You have already trained yourself to think grammatically, to hold new structures in working memory, and to tolerate the period of uncertainty before patterns click into place.
German grammar is demanding. Its system of cases, gendered nouns, and variable word order requires sustained attention, particularly in the early stages. For learners with prior language experience, this demands effort but feels navigable. For learners encountering their first foreign language, the early weeks involve an additional adjustment: learning not just German, but how foreign language learning works. Once that adjustment is made, progress follows the same arc.
Aptitude
Aptitude is real and varies between learners. Some people absorb new structures quickly; others need longer for the same material to settle. I mention it not to set expectations by it, but because it would be dishonest to omit it. What I can say with confidence, having taught a wide range of adults over many years, is that aptitude sets a ceiling but rarely determines whether that ceiling is reached. Consistency does.
Realistic timelines
The following figures are based on two 90-minute lesson per week, approximately 90 minutes of self-study between sessions, regular homework completion, and an adult learner in a non-German-speaking environment.
A1 — approximately 3 months
A1 is the foundation. At this level, you can introduce yourself and others, describe where you are from and what you do, manage very simple transactions, read basic written texts, and understand clear, slow speech on familiar topics.
For a professional with DACH-facing responsibilities, A1 means you can exchange a few genuine words with German-speaking colleagues rather than defaulting immediately to English. You can read the gist of a short message. You understand more than you let on. It is not functional in a business meeting, but it is meaningful — and it is a further distance from zero than it appears when you begin.
Three months from zero to A1 is achievable without any prior German. I have seen students reach it faster when motivation is high and self-study is maintained from the first week.
A2 — approximately 5 months
At A2, the language becomes generative. You can describe your work and your schedule, talk about recent events and future plans, follow a slow conversation on familiar topics, and draft a straightforward email. You understand considerably more than you can produce, which is itself a useful professional asset — comprehension always precedes fluency.
A2 is also approximately where most language applications reach their natural ceiling. What they lack is the feedback loop that distinguishes structured tuition: error correction in real time, conversation adapted to your specific gaps, grammar explained in context rather than through a fixed curriculum. Without that loop, many self-taught learners plateau at A2 for a long time, mistaking the plateau for the limit.
Five months from zero to A2, with a couple of lessons per week and consistent self-study, is a realistic target.
B1 — approximately 12 months
B1 is the level most of my students are working towards, whether or not they frame it in those terms. At B1, you can handle the majority of professional situations in German: follow and contribute to a meeting, write and understand business correspondence, manage a telephone conversation, and operate in a German-speaking environment without reaching for English at the first sign of difficulty.
B1 is also the level required for German citizenship under current legislation — a threshold that has made it considerably more sought-after among London-based learners in recent years. For many students, it represents the point at which German stops feeling like a project and starts feeling like a capability.
Twelve months from zero to B1 is realistic under the model described above. It requires consistent attendance, consistent self-study, and a willingness to speak in German before you feel fully ready. The students who reach B1 on this timeline are not always the quickest learners in raw terms. They are the ones who arrived every week, completed their homework, and put in the work between sessions.
Why I stop at B1
You may notice there are no timelines here for B2, C1, or C2. That is deliberate.
At B1, a professional can function in German. What happens beyond B1 depends on variables that are specific to you: how frequently German appears in your working week, whether professional necessity is pushing you to use it daily, how much additional independent study you are prepared to maintain alongside lessons. Progress from B1 onward is real and achievable, but it does not lend itself to honest timelines in the way the earlier levels do.
Any tutor or language school, or indded language app, that promises C1 within a year is not being overly straight with you. Treat such promises accordingly.
The most common reason progress stalls
It is not aptitude. It is not the difficulty of German grammar, which has a reputation somewhat out of proportion with the actual challenge. It is not the absence of immersion in London, though that requires compensation.
The most common reason adult learners fall short of these timelines is that they do not do the work between sessions. The lesson alone cannot carry the full weight of language acquisition. Ninety minutes twice per week, however well taught, is insufficient on its own. What happens between appointments — whether German appears regularly in your week or disappears entirely until the next lesson — is where most of the real progress is made or deferred.
All in all
How long does it take to learn German? Based on two lessons per week, an equal investment in self-study, and consistent homework:
– A1 in approximately 3 months
– A2 in approximately 5 months
– B1 in approximately 12 months
These timelines are drawn from two decades of teaching adult learners. They assume a professional in a non-German-speaking city, learning in good faith with an experienced native-speaking tutor, and doing the work the process requires. They are not guaranteed. But they are honest timelines — and in my experience, they hold.
The language is learnable. The timelines are realistic. The work is yours to do.