Common reference levels (Wikipedia)

The Common European Framework divides learners into three broad divisions that can be divided into six levels:

A Basic User

A1 Breakthrough or beginner

A2 Waystage or elementary

B Independent User

B1 Threshold or intermediate

B2 Vantage or upper intermediate

C Proficient User

C1 Effective Operational Proficiency or advanced

C2 Mastery or proficiency

The CEFR describes what a learner is supposed to be able to do in reading, listening, speaking and writing at each level.

level group	A
level group name	Basic User
level	A1	A2
level name	Breakthrough or beginner	Waystage or elementary
description	Can understand and use familiar everyday expressions and very basic phrases aimed at the satisfaction of needs of a concrete type. Can introduce him/herself and others and can ask and answer questions about personal details such as where he/she lives, people he/she knows and things he/she has. Can interact in a simple way provided the other person talks slowly and clearly and is prepared to help.	Can understand sentences and frequently used expressions related to areas of most immediate relevance (e.g. very basic personal and family information, shopping, local geography, employment). Can communicate in simple and routine tasks requiring a simple and direct exchange of information on familiar and routine matters. Can describe in simple terms aspects of his/her background, immediate environment and matters in areas of immediate need.

B
Independent User
B1	B2
Threshold or intermediate	Vantage or upper intermediate
Can understand the main points of clear standard input on familiar matters regularly encountered in work, school, leisure, etc. Can deal with most situations likely to arise while travelling in an area where the language is spoken. Can produce simple connected text on topics that are familiar or of personal interest. Can describe experiences and events, dreams, hopes and ambitions and briefly give reasons and explanations for opinions and plans.	Can understand the main ideas of complex text on both concrete and abstract topics, including technical discussions in his/her field of specialisation. Can interact with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain for either party. Can produce clear, detailed text on a wide range of subjects and explain a viewpoint on a topical issue giving the advantages and disadvantages of various options.

C
Proficient User
C1
Effective Operational Proficiency or advanced
Can understand a wide range of demanding, longer texts, and recognise implicit meaning. Can express ideas fluently and spontaneously without much obvious searching for expressions. Can use language flexibly and effectively for social, academic and professional purposes. Can produce clear, well-structured, detailed text on complex subjects, showing controlled use of organisational patterns, connectors and cohesive devices.

C2
Mastery or proficiency
Can understand with ease virtually everything heard or read. Can summarise information from different spoken and written sources, reconstructing arguments and accounts in a coherent presentation. Can express him/herself spontaneously, very fluently and precisely, differentiating finer shades of meaning even in the most complex situations.

These descriptors can apply to any of the languages spoken in Europe, and there are translations in many languages.

Deutsche Welle suggests A1 is reached with about 75 hours of German tuition, A2.1 with about 150 hours, A2.2 with about 225 hours, B1.1 with about 300 hours, and B1.2 with about 400 hours.^[5]

Cambridge ESOL said that each level is reached with the following guided learning hours: A2, 180–200; B1, 350–400; B2, 500–600; C1, 700–800, and C2, 1,000–1,200.^[6]

Alliance Française has stated students can expect to reach CEFR levels after the following cumulative hours of instruction: A1 60–100, A2 160–200, B1 360–400, B2 560–650, C1 810–950, C2 1060–1200.^[7]

^{Link: http://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages}