The MCAT score range spans from 472 to 528. Each of the 4 MCAT sections is scored from 118 to 132, and the 4 section scores are added together to produce the composite score. The national average MCAT score is approximately 500 (50th percentile). Understanding the full scoring scale, what percentile your score represents, and what scores are competitive for different tiers of medical school is essential for setting realistic application goals and deciding whether to retake the exam. This guide covers the complete MCAT score range, percentile rankings, and what constitutes a competitive score for MD and DO programs in 2026–2026.
The MCAT is scored on a scale of 472 to 528. This is not a percentage-based score — it is a scaled score derived from your raw score (number of correct answers) converted through a process that accounts for slight differences in difficulty between test versions. A score of 500 represents the 50th percentile, meaning exactly half of all test-takers score 500 or lower.
The 528 scale was introduced in 2015 when the MCAT was redesigned. The previous version (before 2015) was scored 3–45. If you see reference to "45T" as a perfect score, that is the legacy scale.
Why the score range starts at 472: No test-taker can receive a score below 472 or above 528, even if they answer every question correctly or incorrectly. The scale is anchored so that the midpoint (500) consistently represents the 50th percentile across all test administrations — ensuring comparability between test dates.
National average MCAT score: The national average for all MCAT test-takers is approximately 500 to 501. However, the average MCAT score among students who were accepted to medical school is significantly higher — approximately 511 to 512 for MD programs and approximately 504 to 505 for DO programs. This gap matters: the relevant benchmark is not the national average of all test-takers but the average of admitted applicants at your target schools.
Average MCAT by section (approximate national averages):
The MCAT consists of 4 sections, each scored 118–132. Section scores are simply added to produce your total composite (4 sections × midpoint 125 = 500 composite).
Biological and Biochemical Foundations (Bio/Biochem): 59 questions, 95 minutes. Tests biochemistry, biology, organic chemistry, and physiology as they relate to biological systems. This section is chemistry-heavy — amino acid structures, enzyme kinetics, metabolic pathways, and DNA/RNA mechanics are frequently tested. Average score: approximately 125.
Chemical and Physical Foundations (Chem/Phys): 59 questions, 95 minutes. Tests general chemistry, physics, biochemistry, and organic chemistry. Often the most difficult section for biology-focused students — physics content (optics, circuits, thermodynamics) is regularly tested. Average score: approximately 124 — the lowest section average, reflecting difficulty.
Psychological, Social, and Biological Foundations of Behavior (Psych/Soc): 59 questions, 95 minutes. Tests psychology, sociology, and basic biology as they relate to human behavior and health disparities. This section is the most studyable with flashcard review — key theories, researchers, and terminology form the bulk of testable content. Average score: approximately 126 — the highest section average.
Critical Analysis and Reasoning Skills (CARS): 53 questions, 90 minutes. Reading comprehension of dense humanities and social science passages. No content knowledge is tested — only reasoning and inference skills. This section cannot be crammed; it requires sustained practice reading complex texts. Average score: approximately 125.
Practice all 4 sections with our MCAT practice test to assess your baseline score range before registration.
MCAT percentile rankings are published by AAMC annually and indicate what percentage of test-takers scored at or below your score. Percentiles are calculated from all MCAT scores over a 3-year rolling period — not just the current year.
Key MCAT percentile benchmarks (approximate):
Section-level percentiles also matter — a 125 in CARS is more competitive than a 130 in Bio/Biochem because CARS is the hardest section to improve. Admissions committees examine section profiles, not just composite scores.
The MCAT score you need depends on the schools you are applying to. AAMC publishes the average MCAT of accepted students for every MD program — always research your target school's published data (available in Medical School Admissions Requirements, MSAR).
Top 10 MD programs (Harvard, Johns Hopkins, UCSF, Columbia, etc.): Average accepted MCAT approximately 521–524. A score below 517 is unlikely to be competitive. These schools receive thousands of applications and use MCAT as an initial filter.
Top 25–50 MD programs: Average accepted MCAT approximately 515–520. A 513+ is generally competitive; 518+ is strong. GPA and research experience weigh heavily alongside MCAT at this tier.
Mid-tier MD programs (state schools, community-focused): Average accepted MCAT approximately 508–514. A 507+ is often competitive. Many state schools give strong preference to in-state residents — even with a 505, in-state status significantly helps at flagship state programs.
DO programs (osteopathic medical schools): Average accepted MCAT approximately 503–506. DO programs use a separate application (AACOMAS). A 500+ is generally adequate for many DO schools; 505+ is competitive for top DO programs.
Caribbean and international programs: Minimum MCAT requirements vary — some programs accept 490+. Match rates for residency vary significantly; research program-specific outcomes carefully.
AAMC allows test-takers to attempt the MCAT up to 3 times per calendar year and up to 4 times total (7 lifetime if the first 4 were taken before 2017). All scores are reported to every school you apply to — there is no score choice. Medical schools vary in how they handle multiple attempts: some average all scores, some take the highest, some look at the most recent attempt with context.
Retaking is generally worth it if: your score is below the average for your target programs, your practice test scores consistently predict a higher result, and you can identify specific content weaknesses to address. It is less worth it if: you have taken the exam 3+ times already (multiple attempts can raise red flags), your score is within 3 points of your target school's average, or your application cycle timeline does not allow adequate prep time before the retake.
Review our MCAT practice tests and the full MCAT practice test exam to benchmark your current level before deciding on a retake strategy.