The highest possible MCAT score is 528. The exam has four sections, each scored from 118 to 132, and adding those four maximums together gives you the 528 ceiling. The lowest possible score is 472, making the full scale 472 to 528.
How the Four Sections Are Scored
The MCAT tests four distinct areas, and each one carries equal weight in your total score:
- Biological and Biochemical Foundations of Living Systems: 118 to 132
- Chemical and Physical Foundations of Biological Systems: 118 to 132
- Psychological, Social, and Biological Foundations of Behavior: 118 to 132
- Critical Analysis and Reasoning Skills: 118 to 132
Your raw number of correct answers on each section gets converted to that 118-to-132 scaled score. The midpoint of each section is 125, and the midpoint of the total scale is 500. This scoring system means there are no penalties for wrong answers, so every question is worth attempting.
How Rare a Perfect 528 Actually Is
Scoring a 528 is extraordinarily uncommon. The AAMC’s percentile data (in effect from May 2025 through April 2026) shows just how quickly scores compress at the top of the range. A 522 already places you at the 99th percentile, meaning you’ve outperformed 99 out of every 100 test takers. Every score from 524 to 528 rounds to the 100th percentile, which means so few people reach those levels that the percentage is essentially zero when rounded to whole numbers.
Here’s what the top of the scale looks like in percentile terms:
- 520: 97th percentile
- 521: 98th percentile
- 522: 99th percentile
- 524 and above: 100th percentile
In practical terms, the difference between a 524 and a 528 is statistically invisible in admissions data. Both scores tell a medical school the same thing: you mastered the material at an elite level.
What Score You Actually Need for Medical School
You don’t need anything close to a 528 to get into medical school. For the 2025-2026 academic year, the average MCAT score among students who successfully matriculated into U.S. MD-granting medical schools was 512.1. The average among all applicants (including those who weren’t accepted) was 506.3.
That 512 average for admitted students falls around the 80th percentile, which puts some useful perspective on the 528 ceiling. A score in the low 510s, paired with a strong GPA and application, is competitive at many programs. Scores above 520 open doors at the most selective schools, but chasing those last few points from 520 to 528 offers diminishing returns. Admissions committees weigh your GPA, clinical experience, research, personal statement, and interviews alongside your MCAT.
How the Scaled Score Works
The 118-to-132 scale can feel arbitrary if you’re used to tests scored out of 100 or 1600. The AAMC designed it so that a score of 125 on any section represents the 50th percentile, and a total of 500 represents the median test taker. The scale is deliberately narrow, with only 15 possible scores per section, so each point represents a meaningful jump in performance.
Because the scores are scaled rather than raw, your result accounts for slight differences in difficulty between test dates. A 130 on one administration represents the same level of achievement as a 130 on another, even if one version of the exam happened to have harder passages. This is why you receive a scaled score rather than a simple percentage of questions answered correctly.
If you take the MCAT more than once, medical schools can see all of your scores. Some schools average them, some consider only the most recent, and some look at the highest. Check individual school policies before deciding whether a retake is worth it, especially if your current score already falls in a competitive range.