| Country / Region | Secondary Credential | Duration / Levels | Academic Focus | U.S. Equivalency Notes |
|---|---|---|---|---|
| United States | High School Diploma (Grade 12) | 12 years | Broad general education across all subjects | Standard credential for U.S. university entry. |
| United Kingdom | A-Levels (Advanced Level) | 2-year program (3–4 subjects) | Deep specialization in chosen subjects | More advanced; comparable to AP/first-year college level. |
| International (IB) | IB Diploma Programme | 2 years | Broad, rigorous program with internal & external exams | Highly regarded; often earns U.S. college credit. |
| India | Higher Secondary Certificate / CBSE / ISC (Class 12) | 12 years | Broad subjects with board exams | Equivalent to U.S. High School Diploma. |
| Canada | Secondary School Diploma (Grade 12) | 12 years | Broad general curriculum | Directly equivalent to U.S. High School Diploma. |
| Australia | Year 12 Certificate (HSC, VCE, ATAR-linked) | 12 years | Core + elective subjects; external exams | Equivalent to U.S. High School Diploma; includes ATAR rank. |
| France | Baccalauréat (Bac / Bac Général) | 3 years of lycée | Specialized streams with national exams | Similar to A-Levels; academically rigorous. |
| Germany | Abitur | 12–13 years | Rigorous, broad with specialization | Above U.S. High School level; similar to first-year college. |
| China | Upper Middle School Graduation + Gaokao | 12 years | Strong emphasis on mathematics & science | Diploma equivalent; Gaokao for university entry. |
| Russia | Attestat (11th Grade) + Unified State Exams | 11 years | General education plus national exams | Equivalent to U.S. High School Diploma. |
| European Union (general) | Upper Secondary School Leaving Certificate | 12–13 years | Varies by country; academic/general tracks | Accepted as equivalent when academic track completed. |