The Common European Framework of Reference for Languages in Swedish (Gemensam referensram för språk) aka. GERS is a guideline used to describe achievements of learners of foreign languages across Europe and, increasingly, in other countries.

Image from Pixabay. Creative Commons CC0 Public Domain.

A – Language User at a new-beginner level

A1 – Breakthrough

A2 – Waystage

B – Independent User

B1 – Threshold

B2 – Vantage

C – Advanced user

C1 – Effective operational proficiency

C2 – Mastery

Native level

One of the biggest challenges language schools seem to have is including the study hours allotted by CEFR. It is also different hours language schools offer for each level and it confuses students. Let’s say if each course consists of 100 study hours it isn’t the amount of actual hours a student has to invest into a language learning. Each course can’t consist the same amount of hours because it is obvious that reaching an A1-level is easier than reaching a C1-level for example. Different languages might take also different amount of hours when it comes to the relationship with the duration of the learning process. Read more about that how Cambridge Examinations or Deutsche Welle has set up the time schedule for the different level by clicking on the hyperlink. (source: Wikipedia) 

The actual recommended hours of studying :

C2	C2 Proficiency – previously known as Cambridge English: Proficiency (CPE)	1,000—1,200
C1	C1 Advanced – previously known as Cambridge English: Advanced (CAE)	700—800
B2	B2 First – previously known as Cambridge English: First (FCE)	500—600
B1	B1 Preliminary – previously known as Cambridge English: Preliminary (PET)	350—400
A2	A2 Key – previously known as Cambridge English: Key (KET)	180—200

source: (Cambridge English) *Please note that these hours follow the CEFR but it is just an approximate estimation. Some languages considered being harder to learn can consist of more language hours. We could say that Swedish is on the level of English though.