There six levels: A1, A2, B1, B2, C1, C2. are described in the table below.
About the Common European Framework of Reference for Languages (CEFR or CEF)
The Common European Framework of Reference for Languages (CEFR or CEF) is an international standard for describing language ability. It describes language ability on a six-point scale, from A1 for beginners, up to C2 for those who have mastered a language. This makes it easy for anyone involved in language teaching and testing, such as teachers or learners, to see the level of different qualifications. It also means that employers and educational institutions can easily compare our qualifications to other exams in their country.
Cambridge English (a part of Cambridge Assessment) is a department of Cambridge University. Their English exams Proficiency (CPE), Advanced (CAE), First (FCE), Preliminary (PET) and Key (KET) are recognized around the world by thousands of employers, universities and government ministries as proof of ability to use English.
Cambridge English exams
IELTS – International English Language Testing System
BEC – Business English Certificates (B1, B2, C1)
The following gives an approximate comparison between the different exams. The exams all use the Common European Framework (CEF) proficiency levels.
Cambridge English Key 120-139
PTE General Level 1
PTE Academic 30-42
Cambridge English Key 140-150
Cambridge English Preliminary (PET) 130-159
TOEFL iBT 42-71
PTE General Level 2
PTE Academic 43-58
Cambridge English First (FCE) 160-179
Cambridge English Preliminary (PET) 160-170
B2 Business Vantage
TOEFL iBT 72-94
PTE General Level 3
PTE Academic 59-75
Cambridge English Advanced (CAE) 180-199
Cambridge English First (FCE) 180-190
C1 Business Higher
TOEFL iBT 95-120
PTE General Level 4
PTE Academic 76-85
Cambridge English Proficiency (CPE)
Cambridge English Advanced (CAE) 200-210
PTE General Level 5
PTE Academic 85+