NCLEX vs MCAT: which is harder, and how the formats differ
Written and reviewed by Rachel Goldberg, MSN, RN, CEN · 3 min read · Updated November 2026
Short answer
Neither exam is officially harder, because they measure different things: the NCLEX is a pass/fail licensure exam that adapts to you after nursing school, while the MCAT is a fixed, scaled admission test taken before medical school. The MCAT is far longer, and the NCLEX only has to decide whether you clear one standard.
Different jobs, different exams
NCSBN describes the NCLEX-RN as the exam boards of nursing use to decide whether a candidate can practice safely and effectively as a newly licensed, entry-level registered nurse. You take it after finishing an approved nursing program, and the only outcome that matters is pass or fail.
The MCAT, run by the AAMC, is an admission test. Medical schools use it alongside grades and other factors to choose applicants, so your result is a score compared with other test takers, not a yes or no. That single difference shapes everything else about how the two exams feel.
Format side by side
Under the NCLEX-RN test plan effective April 2026, every candidate answers between 85 and 150 items in a five-hour window that includes breaks. The minimum exam has 52 content items, 18 items in three clinical judgment case studies, and 15 unscored pretest items. The computer picks each next item based on how you are doing.
The AAMC lists four MCAT sections: Chemical and Physical Foundations with 59 questions in 95 minutes, Critical Analysis and Reasoning Skills with 53 in 90, Biological and Biochemical Foundations with 59 in 95, and Psychological, Social, and Biological Foundations with 59 in 95. That is 230 questions, 6 hours 15 minutes of content time, and about 7 hours 30 minutes seated.
How each one is scored
The NCLEX uses computerized adaptive testing. NCSBN's test plan says the exam stops once the computer is 95% certain your ability is clearly above or below the passing standard, and borderline candidates continue to the maximum length. Exam length on its own does not tell you whether you passed.
Each MCAT section is scored from 118 to 132 and the total runs from 472 to 528, with 500 as the midpoint. There is no pass mark on the MCAT scale; each medical school decides what score it considers competitive.
So which is harder?
Neither NCSBN nor the AAMC compares the two, and there is no shared scale that could. The MCAT demands more raw endurance and more breadth across physics, chemistry, biology, psychology and passage reading. The NCLEX demands applied clinical judgment: deciding what a nurse should do first for a specific client, which pure science knowledge does not cover.
A better question is which one you can prepare for. Nursing programs build toward the NCLEX test plan, and its category percentages tell you exactly where items come from. The MCAT content outline plays the same role for premed coursework. Each is hard mainly for people who prepare for the wrong kind of thinking.
Retakes and limits
The AAMC's MCAT Essentials for testing year 2027, effective September 2026, caps attempts at three in one testing year, four over two consecutive years, and seven in a lifetime.
NCLEX retakes are handled through your board of nursing, which sets when you may sit again after a fail. As of November 2026, NCSBN lists the US registration fee as $200, rising to $350 from February 1, 2027, so check nclex.com before you register.
Sources
NCSBN: 2026 NCLEX-RN Test Plan. Purpose of the exam, 85 to 150 items, five-hour limit, item composition, CAT pass/fail rules (effective April 2026)
NCSBN: NCLEX fees and payment. $200 US registration fee, $350 from February 1, 2027 (checked November 2026)
AAMC: What's on the MCAT Exam?. Four sections, questions and minutes per section, content and seated time
AAMC: The MCAT Exam Score Scale. Section scores 118 to 132, total 472 to 528, midpoint 500
AAMC: The MCAT Essentials for Testing Year 2027. Testing limits of three per year, four over two years, seven per lifetime (effective September 2026)
Common questions
Is the NCLEX harder than the MCAT?
There is no official answer. The MCAT is longer and broader in science; the NCLEX tests clinical judgment against one passing standard. They serve different purposes, so difficulty depends on what you trained for.
How long is each exam?
The NCLEX-RN allows up to five hours including breaks for 85 to 150 items. The AAMC lists about 7 hours 30 minutes of seated time for the MCAT's 230 questions.
Does the NCLEX give a score like the MCAT?
No. The NCLEX result is pass or fail. The MCAT gives four section scores from 118 to 132 and a total from 472 to 528.