Understanding A1 to C2: A Detailed Guide to the International Foreign Language Framework (CEFR)
Mục lục
The A1, A2, B1, B2, C1, and C2 classification system is more than just symbols on a certificate; it is a global standardized “yardstick” for assessing language proficiency. In Vietnam, this system serves as the backbone for the 6-level Foreign Language Proficiency Framework (VSTEP).

What is CEFR?
CEFR (Common European Framework of Reference for Languages) is an international standard used to describe language ability. This system helps employers, universities, and immigration agencies easily compare the proficiency of candidates from different countries.
Detailed Breakdown of Levels from A1 to C2
1. Level A: Basic User
This is the stage of building the linguistic foundation.
- Level A1 (Breakthrough): Learners can understand the most basic communicative sentences. Example: You can say “My name is…”, “I live in…”, or order food in a restaurant using single words or simple phrases.
- Level A2 (Waystage): Can exchange information on familiar everyday topics. Example: You can go shopping, describe your family, current job, and immediate environment in simple terms.
2. Level B: Independent User
At this level, learners are capable of “surviving” and working in an environment where the language is used.
- Level B1 (Threshold): Has the ability to maintain a conversation and handle most situations that arise while traveling. Example: You can narrate a story, describe dreams, hopes, and briefly give reasons for your plans.
- Level B2 (Vantage): Can understand complex content on both concrete and abstract topics. Example: You can debate professional issues, write detailed reports, and communicate quite fluently with native speakers without causing strain for either party.
3. Level C: Proficient User
This is the expert level, requiring subtlety and a deep understanding of the linguistic culture.
- Level C1 (Effective Operational Proficiency): Uses language flexibly for social, academic, and professional purposes. Example: You can read and understand long essays, recognize metaphorical meanings or irony, and express ideas without spending too much time searching for words.
- Level C2 (Mastery): Proficiency equivalent to an educated native speaker. Example: You can summarize information from different sources, reconstruct arguments logically and fluently, and differentiate extremely fine shades of meaning in complex situations.
Comparison Table of Popular Certificates
Below is an equivalent comparison table based on actual teaching and testing practices in Vietnam:
| CEFR | VSTEP (Vietnam) | IELTS (Estimated) | TOEIC (Listening & Reading) |
|---|---|---|---|
| A1 | Level 1 | 1.0 – 2.5 | 10 – 150 |
| A2 | Level 2 | 3.0 – 3.5 | 155 – 400 |
| B1 | Level 3 | 4.0 – 5.0 | 405 – 600 |
| B2 | Level 4 | 5.5 – 6.5 | 605 – 780 |
| C1 | Level 5 | 7.0 – 8.0 | 785 – 990 |
| C2 | Level 6 | 8.5 – 9.0 | 990 (Mastery) |
Understanding exactly where you stand on the CEFR scale will help you set an effective learning roadmap and choose the most suitable certificate for your academic or career goals.










