AACOMAS GPA Calculator
Calculate your AACOMAS GPA for DO school applications using grade replacement rules. Shows Science GPA, Non-Science GPA, and Cumulative GPA — with AMCAS comparison included.
How to Use This AACOMAS GPA Calculator
Enter each course with its category (Science or Non-Science), grade, and credit hours. For retaken courses, check the "Retake?" box and enter the original course name — AACOMAS will exclude the original grade and keep only the most recent attempt.
The calculator also shows your AMCAS equivalent GPA (all attempts counted) so you can see the difference that grade replacement makes. This comparison is especially useful if you are applying to both MD and DO programs in the same cycle.
The Advanced tier adds full AMCAS vs AACOMAS side-by-side comparison with retake strategy analysis. The Professional tier adds multi-year transcript tracking and DO school matching based on average matriculant GPAs.
| Course | Category | Grade | Credits | Retake? | Replaces | |
|---|---|---|---|---|---|---|
AACOMAS GPA Formula
Non-Science GPA = Σ(Grade Points × Credits) ÷ Total Non-Science Credits
Cumulative GPA = Σ(All Grade Points × Credits) ÷ All Credits
Grade Replacement: if a course is retaken, the original grade is EXCLUDED.
AACOMAS (the DO school application system) applies grade replacement — when you retake a course, the original attempt is excluded and only the most recent grade counts. This is the opposite of AMCAS (MD schools), which counts all attempts. If you retook several science courses, your AACOMAS GPA could be meaningfully higher than your AMCAS GPA.
AACOMAS Grade Scale
A+ = A = 4.0 | A- = 3.7 | B+ = 3.3 | B = 3.0 | B- = 2.7
C+ = 2.3 | C = 2.0 | C- = 1.7 | D = 1.0 | F = 0.0
W = not counted | P (Pass) = not counted in GPA
AACOMAS Science Category Guide
Science: Biology, Chemistry (all types), Physics, Biochemistry, Anatomy, Physiology, Microbiology, Genetics, Neuroscience, Statistics, Mathematics, Computer Science
Non-Science: Psychology, Sociology, English, History, Economics, Fine Arts, Foreign Languages, Philosophy, Anthropology, Political Science
Note: AACOMAS science categories are broader than AMCAS BCPM. Computer Science and Statistics count as science in AACOMAS, and Psychology/Sociology count as Non-Science (unlike some MD school requirements).
| Course | Year | Cat | Grade | Cr | Retake | Replaces | |
|---|---|---|---|---|---|---|---|
Average AACOMAS GPA for DO Matriculants
The average AACOMAS science GPA for DO matriculants is approximately 3.45–3.55, and cumulative GPA around 3.55–3.65 (AACOM data). Individual DO schools vary — some accept applicants with science GPAs below 3.2 if MCAT and other factors are strong.
If your AACOMAS GPA is below 3.2, consider whether a post-baccalaureate program or additional science courses (which count as retakes or new work) could bring the number up before applying. The Professional tier's school matching shows which programs are within your range.
Applying to Both MD and DO Programs
Many applicants apply to both AMCAS (MD) and AACOMAS (DO) programs simultaneously. If you retook courses, your AACOMAS GPA will typically be higher than your AMCAS GPA — sometimes by a significant margin. Medical school applicants should calculate both GPAs before strategizing which programs to target.
The Advanced tier's side-by-side comparison shows you both numbers using the same course data, so you can assess your competitiveness across both MD and DO tiers with one set of inputs.