How the MCAT Is Scored
The MCAT is scored on a scale of 472–528, with the midpoint at 500. It has four sections — Chemical and Physical Foundations (C/P), Critical Analysis and Reasoning Skills (CARS), Biological and Biochemical Foundations (B/B), and Psychological/Social/Biological Foundations (P/S) — each scaled from 118 to 132 (midpoint 125).
Your total score is the sum of the four sections. AAMC also reports your percentile rank, which is what adcoms typically reference. Percentiles are updated annually based on rolling three-year test populations.
Score Percentiles (AAMC Data)
| Score | Percentile | Context |
|---|---|---|
| 528 | 100th | Maximum possible |
| 522 | 99th | Top MD programs |
| 518 | 96th | Competitive top-20 |
| 515 | 90th | Competitive top-50 |
| 511 | 81st | MD matriculant average |
| 506 | 65th | Applicant average |
| 504 | 57th | DO matriculant average |
| 500 | 45th | Median scaled score |
Target Scores by Program Tier
Practical targets, based on AAMC matriculant data and program-published medians:
- Top-10 MD (Harvard, Hopkins, Stanford, etc.): Median MCAT 519–522.
- Top-30 MD: Median MCAT 516–518.
- Top-50 MD: Median MCAT 513–516.
- State MD (mid-tier): Median MCAT 509–513.
- DO programs: Median MCAT 504–508.
These medians are not minimums. Half of matriculants at each program scored below the median — admissions is holistic, and a 510 at a "top-30 by MCAT" program is feasible with strong application context.
Section Balance Matters
Many top programs explicitly look at section-level performance. A 515 total with 132/120/132/131 reads worse than a 512 total with 128/128/128/128 at programs that screen for minimum section scores. CARS is the most common section to be flagged — several programs publicly cite CARS below 125 as a soft screen.
If your practice scores show a deep section weakness, prioritize closing that gap over pushing your strongest section higher. Balanced is better than peaky for most adcoms.
When to Retake
Retake only when your most recent practice exam average is meaningfully higher than your real score (4+ points) and you have addressed the specific reason for the underperformance. Retaking after a 510 to "see what happens" can backfire — adcoms see every score, and a downward retake (510 → 508) is a worse outcome than the original.
Safe retake conditions:
- Your real score was outside your AAMC practice exam range (you can identify what went wrong on test day).
- Your current practice scores are consistently 4+ points higher than your real score.
- You have a clear additional study plan, not just "study more".
