If you’re searching for MCAT score percentiles, you already know the raw score doesn’t tell the whole story. A 510 sounds great on paper, but you really want to know how that number compares to everyone else taking the exam.
Here’s the clear answer: MCAT score percentiles show the percentage of test takers who received the same score or a lower score than you did. The AAMC updates these percentiles annually based on the last three years of testing data, and for the May 1, 2025, to April 30, 2026 reporting period, the 50th percentile sits at 500, the 75th percentile is around a 508, and the 90th percentile is a 515.
How the scale works
The MCAT is scored from 472 to 528, with 500 intended to be the midpoint. But percentiles are what give those numbers meaning. The AAMC calculates these percentiles using results from the previous three testing years, which means your percentile is a direct comparison to recent, real-world test takers.
For example, based on the 2025–2026 percentile ranks, a score of 500 puts you in the 49th percentile, a 510 puts you in the 79th percentile, and a 515 puts you in the 91st percentile. That means if you score a 515, you scored the same or higher than 91% of people who took the exam over the last three years.
Why the numbers shift
A lot of students panic when they see percentiles change from year to year. The AAMC updates them every May 1 to keep the comparison accurate.
Because the average total MCAT score has crept up slightly over the years, the score needed to hit certain percentiles can shift. In 2015, the 50th percentile was exactly 500, whereas for the 2025–2026 data, the average total score of all test takers is 500.5. Those shifts are usually small, but they explain why an older prep book might show a slightly different percentile for the exact same score.
What actually matters
The biggest mistake students make is obsessing over the 99th percentile. A 522 puts you in the 99th percentile, but you absolutely do not need a 522 to get into medical school.
Instead of chasing a perfect percentile, look at the percentiles of accepted students at your target schools. If the median accepted score at a school is a 511 (82nd percentile), that tells you much more about your chances than comparing yourself to the top 1% of all test takers.
It also helps to check your section percentiles. The AAMC provides percentiles for each of the four sections, and a balanced score profile often looks better to admissions committees than a high total score dragged up by one perfect section.
Using percentiles in your prep
Use percentiles as a reality check, not a stressor. If your practice scores are sitting in the 50th percentile and your target schools expect the 80th, you know exactly how much ground you need to cover.
When you know where you stand and what you need to fix, the next step is building a structured prep system to close that gap. If you’re tired of guessing how to raise your score, the Complete MCAT Bundle is a natural next step for turning percentile panic into an organized study plan.