Examinations are a universal measure of knowledge, skill, and aptitude. However, some exams are so challenging that they have earned a reputation as the toughest in the world. These exams test not only academic knowledge but also critical thinking, problem-solving, and endurance.
Hardest Exams In The World
Here’s an in-depth look at some of the hardest exams globally, based on their difficulty, competition, and low success rates.
1. Gaokao (China)
- Purpose: National college entrance exam for high school students.
- Duration: 9 hours over 2-3 days.
- Pass Rate: Less than 0.25% qualify for top-tier universities.
- Why It’s Tough: The Gaokao is infamous for its rigorous syllabus, which includes Chinese literature, mathematics, foreign languages, and additional subjects based on the student’s chosen field. It determines the academic future of millions of students annually.
2. IIT JEE (India)
- Purpose: Admission to the prestigious Indian Institutes of Technology (IITs).
- Stages: JEE Main and JEE Advanced.
- Acceptance Rate: Less than 1%.
- Why It’s Tough: The exam covers advanced topics in physics, chemistry, and mathematics. It requires years of preparation, analytical thinking, and problem-solving skills.

3. UPSC Civil Services Exam (India)
- Purpose: Recruitment for India’s civil services, including IAS, IPS, and IFS.
- Stages: Preliminary, Mains, and Interview.
- Success Rate: Around 0.1% to 0.3%.
- Why It’s Tough: The exam tests a wide range of subjects, including history, geography, economics, and current affairs. The interview stage assesses personality and decision-making skills.
4. CFA (Chartered Financial Analyst)
- Purpose: Certification for financial professionals.
- Levels: Three levels of exams.
- Pass Rate: Around 43% for Level I, dropping significantly for Level III.
- Why It’s Tough: The CFA exam requires mastery of investment management, financial analysis, and ethics. Candidates often spend over 300 hours preparing for each level.
5. USMLE (United States Medical Licensing Examination)
- Purpose: Licensing for medical practitioners in the US.
- Stages: Three-step exam.
- Pass Rate: Varies, but the exam is known for its high standards.
- Why It’s Tough: The USMLE tests medical knowledge, clinical skills, and patient care. It requires years of medical education and preparation.
6. GRE (Graduate Record Examination)
- Purpose: Admission to graduate programs worldwide.
- Duration: 3 hours and 45 minutes.
- Why It’s Tough: The GRE assesses verbal reasoning, quantitative reasoning, and analytical writing. It is particularly challenging for non-native English speakers.
7. California Bar Exam (USA)
- Purpose: Licensing for lawyers in California.
- Duration: Two days.
- Pass Rate: Around 50%.
- Why It’s Tough: The exam tests knowledge of US law and legal procedures. It is known for its comprehensive and demanding nature.
8. Mensa IQ Test
- Purpose: Membership in Mensa, the high IQ society.
- Pass Rate: Only the top 2% of test-takers qualify.
- Why It’s Tough: The test measures logical reasoning and problem-solving abilities, with no specific syllabus to prepare from.
9. GATE (Graduate Aptitude Test in Engineering)
- Purpose: Admission to postgraduate engineering programs in India.
- Duration: 3 hours.
- Pass Rate: Around 18%.
- Why It’s Tough: The exam tests in-depth knowledge of engineering subjects and analytical skills.
10. All Souls Prize Fellowship Exam (Oxford University, UK)
- Purpose: Selection for a fellowship at All Souls College.
- Duration: Two days.
- Why It’s Tough: The exam includes essay questions on abstract topics, requiring exceptional intellectual ability and originality.
Conclusion
These exams are not just tests of knowledge but also of perseverance, discipline, and mental strength. While they are daunting, they open doors to prestigious opportunities and careers. Success in these exams is a testament to the candidate’s dedication and hard work.
At Convex Classes Jaipur, we understand the challenges of preparing for competitive exams. Our expert faculty and structured study plans are designed to help students excel in their chosen fields. Let us guide you on your journey to success!