The CEFR scale, A1 to C2, in plain language
Almost every English test, course and job advert describes level using the CEFR, the Common European Framework of Reference. It has six levels in two-letter pairs: A1 and A2 are the basic user, B1 and B2 the independent user, C1 and C2 the proficient user. What makes it useful is that each level is defined by what you can do, not by how much grammar you have covered, which is why a self-taught speaker and a diligent student can land on the same level from completely different directions.
The single most common misjudgement is people at B1 who call themselves B2 because they understand almost everything they hear. Understanding always runs ahead of speaking, sometimes by a whole level, and a placement result that feels lower than expected usually means the test asked you to produce something rather than recognise it. That is not a reason to argue with it; it is the reason to book conversation practice.
The other common surprise runs the other way. People who studied English seriously years ago and have not spoken it since often test higher than they feel, because the knowledge is intact and only the retrieval speed has gone. Those learners do not need to start again from a lower level, they need to get the speed back, and a test result is the fastest way to stop them wasting six months on material they already know.
- A1, beginner: you can introduce yourself and handle very simple, slow exchanges.
- A2, elementary: everyday topics, shopping, directions, short simple sentences.
- B1, intermediate: you cope with familiar situations, travel and routine work talk.
- B2, upper-intermediate: meetings, argued opinions, films without subtitles most of the time.