Cambridge English puts B2 at 500–600 cumulative guided learning hours from beginner. The US Foreign Service Institute needs 2,200 class hours to bring an English speaker to professional proficiency in Japanese, Korean, Mandarin, Cantonese or Arabic. This post gathers the hour figures published by the exam boards and government trainers that define the B2 standard, with what each one actually counts.
Time to Reach B2
How Many Hours Does It Take to Reach B2 in English?
Cambridge English publishes a cumulative hour figure for every CEFR level. B2 sits at 500–600 guided learning hours from a standing start.
Guided learning hours mean classroom or programme time, including homework and activities designed to build language skills. They are not a count of casual exposure or app streaks.
| CEFR level | Cambridge English exam | Cumulative guided learning hours |
|---|---|---|
| A1 | A1 Starters/Movers | 90–100 |
| A2 | A2 Key | 180–200 |
| B1 | B1 Preliminary | 350–400 |
| B2 | B2 First | 500–600 |
| C1 | C1 Advanced | 700–800 |
| C2 | C2 Proficiency | 1,000–1,200 |
Source: Cambridge English, guided learning hours guidance, page updated 26 July 2026
B2 is not the halfway mark it looks like. C2 needs 1,000–1,200 hours, so passing B2 leaves roughly as many hours ahead as behind.
How Many Hours Between B1 and B2?
Cambridge’s ELT research team puts motivated adult learners at 100–200 guided hours per CEFR level, with the steps getting longer higher up the scale.
A1 to A2 takes 100–150 hours. B1 to B2 takes 180–260. The jump into B2 is close to double the first one, and learners who budget by averaging levels tend to underestimate it.
Source: Cambridge University Press & Assessment, Director of ELT Research, published 11 October 2018
Time to Reach B2 in German: Goethe-Institut Hours
The Goethe-Institut counts teaching units of 45 minutes rather than clock hours, so its figures are not directly comparable with Cambridge’s.
B2 sits at 600–800 units. The institute states these are experience-based guidelines that shift with prior knowledge and learning conditions.
| Exam | CEFR level | Teaching units of 45 minutes |
|---|---|---|
| Goethe-Zertifikat B1 | B1 | 350–650 |
| Goethe-Zertifikat B2 | B2 | 600–800 |
| Goethe-Zertifikat C1 | C1 | 800–1,000 |
Source: Goethe-Institut, exam requirement pages for Goethe-Zertifikat B1, B2 and C1, accessed July 2026
The B1 band is unusually wide at 300 units. Goethe narrows it to 200 units at B2 and C1, which suggests less variation in how learners arrive at the upper levels.
FSI Categories Behind Every B2 Timeline
The Foreign Service Institute trains US diplomats and publishes the most-cited difficulty benchmark for English speakers. Its hour counts target an integrated score of 3 on the Interagency Language Roundtable scale, covering speaking and listening.
ILR 3 sits above B2, so read these as a ceiling rather than a B2 estimate. A typical FSI week is 23 hours in class plus 17 hours of self-study.
| Category | Weeks | Class hours to ILR 3 | Languages listed |
|---|---|---|---|
| Category I | 24–30 | 552–690 | Danish, Dutch, French, Italian, Norwegian, Portuguese, Romanian, Spanish, Swedish |
| Category II | ~36 | 828 | German, Haitian Creole, Indonesian, Malay, Swahili |
| Category III | ~44 | 1,012 | Russian, Polish, Hindi, Greek, Hebrew, Finnish, Turkish, Thai, Vietnamese and others |
| Category IV | 88 | 2,200 | Arabic, Cantonese, Mandarin, Japanese, Korean |
Source: US Department of State, National Foreign Affairs Training Center, page modified 21 January 2026. Category III list is not exhaustive.
The largest gap on the scale is the doubling between Category III and Category IV, from 1,012 hours to 2,200.
Category I is not uniform either. French and Spanish are listed at 30 weeks while Danish, Dutch, Italian, Norwegian, Portuguese, Romanian and Swedish sit at 24, a six-week spread inside the easiest tier. German is grouped with Haitian Creole, Indonesian, Malay and Swahili in Category II. If you are weighing a Category I language, our French study resources cover what the first few hundred hours look like in practice.
B2 Timelines Against What Learners Actually Choose
Popularity and hour cost pull in opposite directions. The 2025 Duolingo Language Report covers learners who studied on the platform between 1 October 2024 and 30 September 2025.
Japanese moved to fourth globally, passing German. Korean moved to sixth, passing Italian. Both sit in the 2,200-hour FSI tier.
| Rank | Language | FSI category | 2025 movement |
|---|---|---|---|
| 1 | English | — | Held first |
| 2 | Spanish | I | Held second |
| 3 | French | I | Held third |
| 4 | Japanese | IV | Rose past German |
| 5 | German | II | Fell to fifth |
| 6 | Korean | IV | Rose past Italian |
| 7 | Italian | I | Fell to seventh |
Source: Duolingo 2025 Language Report, learner data 1 October 2024 to 30 September 2025; FSI categories from US Department of State, January 2026
Duolingo attributes the shift to course access rather than taste: for the first time, speakers of more than 20 languages could study Japanese and Korean from their own language. Study-time distribution across platforms is covered further in our breakdown of language learning app data, and the platform’s own scale in our Duolingo user and revenue figures.
English was the most-studied language in 154 countries in 2025, which Duolingo reports as 79% of all countries and a 14% increase over 2024. Twenty-five countries had English outside their top two.
Demand for certification tracked demand for study. People from 219 countries and 148 first languages took the Duolingo English Test in 2025, with Asia accounting for 55% of test sessions and Africa’s share rising from 7% to 8.3%.
Source: Duolingo 2025 Language Report, published 1 December 2025
Why the B2 Benchmark Matters More in 2026
France moved its naturalisation language bar this year. Décret n° 2025-648 of 15 July 2025 raised the minimum from B1 to B2, applied globally across written and oral comprehension and expression.
The requirement covers applications filed from 1 January 2026, and the same decree introduced a civic exam. Incomplete files supplemented after that date fall under the new rules.
Source: French Ministry for Europe and Foreign Affairs, Décret n° 2025-648 of 15 July 2025, in force 1 January 2026
At Cambridge’s figures, that change adds 150–200 cumulative guided hours to the requirement. Learners funding that gap themselves often compare rates on tutor marketplaces such as Preply and italki or assemble something from free online tools.
For Japanese, the closest published benchmark to B2 is the JLPT, which uses its own N-scale rather than CEFR levels; our JLPT guide from N5 to N1 sets out what each level tests. On the supply side, language teacher pay across US states shapes how much classroom time is available, while bilingualism rates by US state show which languages already have a base of home speakers.
FAQ
How long does it take to reach B2 from zero?
Cambridge English puts B2 at 500–600 cumulative guided learning hours from beginner. The Goethe-Institut recommends 600–800 teaching units of 45 minutes for German B2. Both are guidelines that vary with prior knowledge.
How many hours does it take to go from B1 to B2?
Cambridge’s research team puts the B1 to B2 step at 180–260 guided learning hours for motivated adult learners, against 100–150 hours for A1 to A2. Steps lengthen higher up the CEFR scale.
Which languages take the longest for English speakers?
The State Department lists Arabic, Cantonese, Mandarin, Japanese and Korean as Category IV, needing 88 weeks or 2,200 class hours to reach ILR level 3. That is more than double Category III.
Are the hour estimates on Reddit reliable?
Reddit threads usually cite FSI’s 2,200-hour Category IV figure, which is accurate but measures ILR level 3, above B2. Reddit totals also mix classroom hours with self-study, which FSI counts separately at 17 hours weekly.
Does France now require B2 for citizenship?
Yes. Décret n° 2025-648 of 15 July 2025 raised the naturalisation requirement from B1 to B2 in written and oral French, applying to applications filed from 1 January 2026, alongside a new civic exam.
Sources
https://www.state.gov/national-foreign-affairs-training-center/foreign-language-training
https://support.cambridgeenglish.org/hc/en-gb/articles/202838506-Guided-learning-hours
