How to Interpret Your MCAT Percentile

Your MCAT score report just arrived. You see a number and a percentile next to it. One of these matters more than you think.

What Your MCAT Percentile Actually Tells You

When you get your MCAT score back, you'll see two numbers: your scaled score (somewhere between 472 and 528) and your percentile rank. The scaled score tells you how you performed on the test. The percentile tells you how you performed compared to everyone else.

Your percentile rank represents the percentage of test-takers who scored the same as you or lower. If you scored in the 80th percentile, that means you performed as well as or better than 80% of everyone who took the MCAT. The remaining 20% scored higher.

This is important because a scaled score by itself doesn't tell the full story. A 510 sounds like it could be average, but it's actually in the 80th percentile. Without that context, you might underestimate how competitive your score really is.

How the AAMC Calculates Percentiles

The AAMC updates MCAT percentile ranks every year on May 1st. The current percentile ranks (effective May 2025 through April 2026) are based on all MCAT results from the 2022, 2023, and 2024 testing years combined, covering 293,882 exams.

This means your percentile isn't just comparing you to people who tested on the same day. It's comparing you to nearly 300,000 test-takers across three full years of exams. That's a large and stable comparison group, which makes the percentiles pretty reliable year over year.

One thing to know: percentile ranks can shift slightly from year to year as new testing data replaces old data. A score of 510 might be the 80th percentile this year and the 79th next year. These shifts are usually small, no more than a point or two, so don't obsess over them.

MCAT Score to Percentile: The Key Numbers

Here are the percentile ranks that matter most for medical school admissions. These are based on the AAMC's 2025-2026 percentile ranks.

The MCAT has a mean score of 500.5 with a standard deviation of 11.2. That means most test-takers score between 489 and 512, and the median is right around 500.

At the 25th percentile, you're looking at about a 492. The 50th percentile sits near 500. The 75th percentile is around 508. And the 90th percentile is approximately 515.

A few benchmarks worth memorizing: a 510 puts you around the 80th percentile, which is near the average for medical school matriculants. A 515 puts you in the 91st percentile, which makes you competitive for most programs. And a 520 lands you in the 97th percentile, which is competitive for the most selective schools in the country.

Why Percentiles Matter More Than Raw Scores

Medical school admissions committees see thousands of applications. They use percentiles to quickly contextualize where an applicant falls relative to the testing pool. Two applicants could both score 512, but if one tested in a year with a slightly easier curve, their percentiles might differ by a point.

Percentiles also help you compare across sections. The four MCAT sections have different scoring distributions. The Psych/Soc section has the highest average (125.9), while CARS and Chem/Phys are tied at 124.6. This means a 127 in CARS is more impressive than a 127 in Psych/Soc, and the percentile reflects that difference.

When evaluating your score, look at both your total percentile and your section percentiles. A strong total score with one weak section can raise flags for admissions committees, especially if that weak section is relevant to the school's curriculum.

Section Score Percentiles

Each section of the MCAT is scored from 118 to 132. Here's what the key percentile markers look like for each section:

For the 50th percentile, you need approximately a 125 across all four sections (exact averages vary slightly: Chem/Phys 124.6, CARS 124.6, Bio/Biochem 125.1, Psych/Soc 125.9).

For the 75th percentile, you generally need a 127 in each section.

For the 90th percentile, you're looking at 128-129 depending on the section. CARS is the hardest to score high on, so a 128 in CARS carries more weight than a 128 in Psych/Soc.

What If Your Percentile Isn't Where You Want It?

If your practice test percentiles aren't matching your target schools' averages, that's actually useful information. It tells you exactly how much ground you need to cover and helps you plan accordingly.

The average MedLeague student improves their score by 17+ points, which can translate to a 20-30 percentile point jump depending on where they start. A student going from 500 (49th percentile) to 515 (91st percentile) has transformed from an average test-taker to a top-10% scorer.

That kind of improvement doesn't happen by accident. It takes a structured study plan with clear weekly targets, guided practice, and expert strategy coaching. If you're looking for a starting framework, you can download our free 6-Month MCAT Study Plan, which breaks down exactly what to focus on each week.

How to Use Percentiles When Building Your School List

Once you understand your percentile, use it to build a realistic school list. The AAMC's MSAR (Medical School Admissions Requirements) database shows the median MCAT scores for each school's accepted class. Compare your percentile to those medians.

A good rule of thumb: apply to schools where your score falls within 2-3 points of the median accepted score. If you're at the 80th percentile (around 510), you're competitive at many mid-tier MD programs and strong at most DO programs. If you're at the 90th percentile or above, you can aim for more selective schools.

Don't ignore your section scores when doing this comparison. Some schools screen for section score balance, and a 130/125/130/127 total of 512 looks very different than a 128/128/128/128 total of 512.

Next Steps

If you want a deeper look at what constitutes a competitive score, read our guide on what is a good MCAT score. And if you're trying to figure out where you fall relative to other applicants, our piece on average MCAT scores breaks down the three different averages you need to know.

For a personalized assessment of your score and a study plan built around your specific strengths and weaknesses, book a free strategy session with a MedLeague MCAT expert. You'll also receive a free AAMC Full Length Exam ($40 value) just for showing up.