There isn't one single "hardest" exam, but the Chartered Financial Analyst (CFA) (due to extremely low pass rates, often under 20%) and the United States Medical Licensing Examination (USMLE) (requiring massive prep time across multiple steps) are frequently cited as top contenders, alongside the notoriously difficult California Bar Exam for its low pass rates in the US, and the massive, multi-stage UPSC Civil Services Exam in India for its sheer scale and depth.
Top 10 Toughest Exams in the United States
The United States Medical Licensing Examination (USMLE) takes the top spot as the most challenging exam in the US, with an average preparation time ranging from 200 to 400 hours for each of its three steps.
The California Bar Exam is considered one of the world's hardest exams for law graduates. It tests comprehensive legal knowledge, writing ability, and analytical thinking. The exam spans two days, including essays, multiple-choice questions, and performance tests.
17 toughest exams in the world
List of Easiest Exams in the World
The UK test has a 45% first time pass rate. It is hard to pass. This is a good thing. UK has higher speed limits, way more pedestrians and cyclists to hit (bonus score if you take out both types), worse roads ... and about 1/4 the normalized road accident fatality rate, compared to USA.
How to Create a Study Plan for Your Licensing Exam
Influence on Higher Education and Careers
Tough exams serve as critical gateways to prestigious universities and professional opportunities.
No, Kim Kardashian did not pass the California Bar Exam in July 2025, the results of which she received in November 2025, but she remains determined to retake it, viewing the failure as motivation to continue her legal studies and ultimately pass the difficult exam. She has publicly shared her emotional journey, highlighting the challenges of balancing her career with intense studying, and remains committed to becoming a lawyer.
Top 10 Toughest Exams in India
Countries like the UK, USA, Sweden and Denmark are among the best in the world when it comes to higher education.
The hardest exam in the UK is often considered the All-Souls Prize Fellowship Exam at Oxford University. It's known for its extremely challenging essay questions, including one-word prompts. There is no set of syllabus and only a few candidates selected. Thus, it is a true test of originality and intellect.
Cambridge Exams
The Cambridge exam suite is the most difficult English test to understand because it is actually a set of several tests for different skill levels and student profiles.