PA School Admissions — CASPA
PA School GPA — Overall & Science,
all attempts counted.
Enter every undergraduate course — science and non-science. The calculator splits your GPA into Overall and Science GPA matching how CASPA works. Math excluded from Science — tag biology, chemistry, biochemistry, and physics as "Science."
How to use this calculator
Four steps to your
accurate CASPA GPA estimate
CASPA tracks Overall, Science, and Math GPAs separately. The Science GPA is what PA programs use to assess your readiness for the heavy physiology, pathophysiology, and pharmacology load of PA school — follow these steps to make sure your estimate matches what CASPA actually computes.
Tag Science courses correctly — Math is NOT Science in CASPA
CASPA Science GPA covers Biology/Zoology, Inorganic Chemistry, Organic Chemistry, Biochemistry, and Physics only. Calculus, Statistics, and Biostatistics are Math — they go into CASPA's separate Math GPA and do not count in the Science GPA. This is the single most common classification error pre-PA students make, especially those who've compared notes with pre-med friends using AMCAS (which includes Math in BCPM). In this calculator, tag all math courses as "Other" and Bio, Chem, Biochemistry, and Physics as "Science."
Enter every attempt — CASPA does not recognize grade replacement
CASPA's Applicant Guide explicitly states that freshmen forgiveness and academic renewal policies are not recognized. If your school replaced a D with an A when you retook a course, CASPA still counts both. Enter the original grade as a separate row from the retake — both sets of quality points go into your Science GPA. This is especially important for Anatomy, Physiology, and Gen Chemistry courses, where retakes are common and high credit hours make both grades impactful.
Include all institutions — CASPA checks for omitted transcripts
CASPA requires official transcripts from every undergraduate institution you attended. Every graded course from community college, summer school, or transfer institutions goes into the same GPA calculation as your primary school. CASPA's verification process cross-references your self-reported coursework against official transcripts, so omitting institutions is caught — and considered misrepresentation, which can result in application rejection. Include everything when estimating here as well.
Treat GPA and patient care hours as two separate bars — both must clear
PA school admissions differ from most other health professional programs in one critical way: patient care experience (PCE) is not supplementary — it's a co-equal requirement alongside GPA. Most programs expect 1,000–3,000+ hours of direct patient care in a hands-on clinical role (EMT, CNA, medical assistant, phlebotomist). A strong Science GPA with 500 PCE hours will not produce interview invitations at most programs; neither will 3,000 hours with a Science GPA below 3.0. Use this calculator to set your GPA target, then build your PCE hours timeline in parallel.
How it works
Two GPAs, one PA application —
here's what CASPA calculates
When you apply to PA school through CASPA (the Centralized Application Service for Physician Assistants), the system recalculates your GPA from scratch. Every graded course from every institution you attended is converted to a standard 4.0 scale — including every retake, with no grade replacement. PA programs receive two primary GPA measures: Overall GPA and Science GPA.
The Overall GPA covers every graded undergraduate course. The Science GPA covers Biology/Zoology, Inorganic Chemistry, Organic Chemistry, Biochemistry, and Physics. Math is explicitly excluded from Science GPA — Calculus and Statistics go into a separate Math GPA category. This is different from medical school's BCPM GPA, which includes Math. Source: CASPA Applicant Guide 2025–26.
The formula
| GPA type | What goes in | Formula |
|---|---|---|
| Overall GPA | All graded undergraduate courses, all institutions | Σ(grade pts × credits) ÷ Σ(credits) |
| Science GPA | Biology/Zoology, Inorganic Chem, Organic Chem, Biochem, Physics | Σ(grade pts × credits) ÷ Σ(science credits) |
No grade replacement
CASPA does not recognize freshmen forgiveness, academic renewal, or grade replacement. Every attempt at a course counts — original grade and retake both go in. A course you repeated for a better grade has two entries in your CASPA GPA, both weighted by credit hours. Enter both attempts in this calculator to get an accurate estimate.
Worked example
CASPA Science GPA in practice
Five courses — three science, one math, one non-science — showing why Math must be tagged "Other" to match CASPA's definition, and why retakes both count.
| Course | CASPA type | Grade | Cr | Points |
|---|---|---|---|---|
| Human Anatomy | Science (Bio) | A | 4 | 16.0 |
| General Chemistry I | Science (Inorganic) | B− | 4 | 10.8 |
| General Chemistry I (retake) | Science (Inorganic) | A− | 4 | 14.8 |
| Statistics | Other (Math) | A | 3 | 12.0 |
| English Writing | Other | B+ | 3 | 9.9 |
Overall GPA: (16.0+10.8+14.8+12.0+9.9) ÷ 18 = 63.5 ÷ 18 = 3.53
Science GPA: (16.0+10.8+14.8) ÷ 12 = 41.6 ÷ 12 = 3.47
Statistics is tagged "Other (Math)" — it goes into CASPA's Math GPA, not Science. The Chemistry retake: B− (2.7) and A− (3.7) both count — both improve the Science GPA together. Without the retake, the Science GPA would be (16.0 + 10.8) ÷ 8 = 3.35.
Science vs. Other
Which courses count as Science
in CASPA — and which don't
Course classification in CASPA determines whether a course goes into Science GPA or stays in Overall GPA only. Source: URI CASPA Science GPA Guide and CASPA Applicant Guide.
| Course | CASPA classification | Science GPA? |
|---|---|---|
| General Biology I & II, Cell Biology, Genetics, Anatomy, Physiology, Microbiology, Ecology, Neuroscience | Biology/Zoology | ✅ Yes |
| General Chemistry I & II (and labs) | Inorganic Chemistry | ✅ Yes |
| Organic Chemistry I & II (and labs) | Organic Chemistry | ✅ Yes |
| Biochemistry, Molecular Biology | Biochemistry | ✅ Yes |
| General Physics I & II (and labs) | Physics | ✅ Yes |
| Calculus I & II, Statistics, Biostatistics, Algebra | Mathematics (separate) | ❌ No — Math GPA |
| Psychology, Sociology, Economics | Social/Behavioral Science | ❌ No — Non-Science |
| English, History, Philosophy, Arts | Non-Science | ❌ No |
Where you stand
PA school GPA benchmarks —
what the numbers mean
PA program admissions have become increasingly competitive over the past decade. Here's the current GPA landscape based on published CASPA applicant and matriculant data:
| Overall GPA | Science GPA | Admissions context |
|---|---|---|
| 3.7+ | 3.6+ | Highly competitive; top programs and early interview invites |
| 3.5 – 3.69 | 3.5 – 3.59 | Near national average for accepted applicants (~3.5 overall) |
| 3.2 – 3.49 | 3.1 – 3.49 | Viable; strong patient care hours and narrative help significantly |
| 2.9 – 3.19 | 2.8 – 3.09 | Challenging; apply broadly, focus on programs with lower medians |
| Below 2.9 | Below 2.8 | Post-bacc or additional science work recommended before applying |
Average accepted Science GPA nationally hovers around 3.5–3.6. Patient care hours, healthcare experience, and the personal statement carry significant weight alongside GPA. Source: PAEA Program Statistics.
Frequently asked questions
CASPA GPA — your questions answered
Why is Math excluded from CASPA Science GPA?
CASPA's Science GPA is designed to reflect performance in the core biological and chemical sciences that directly underpin PA school curricula — Anatomy, Physiology, Pathophysiology, Pharmacology, and Clinical Medicine. Math (Calculus, Statistics) is foundational but is a different cognitive domain. CASPA tracks Math GPA separately, so programs can assess both. This is the opposite of AMCAS's BCPM GPA for medical school, which includes Math in the science calculation — a common source of confusion for students who've researched both systems. In this calculator, tag Calculus and Statistics as "Other" to match the CASPA definition.
Does CASPA count both grades when I retake a course?
Yes. CASPA does not recognize academic forgiveness, freshmen forgiveness, or grade replacement policies — no exceptions. From the CASPA Applicant Guide: CASPA does not recognize freshmen forgiveness or academic renewal. If you retook a course, enter both the original grade and the retake grade in the calculator to get an accurate estimate. The original grade's damage doesn't disappear, but the retake A adds quality points that genuinely help — the net effect is positive, especially with many courses in the denominator.
How much patient care experience do PA programs require?
Most PA programs require at least 1,000 hours of direct patient care experience, with competitive programs expecting 2,000–3,000+ hours. "Direct patient care" means hands-on clinical contact — roles like EMT, CNA, medical assistant, phlebotomist, surgical technologist, and combat medic typically qualify. Scribing is usually considered supplemental, not direct care. Each program defines "direct patient care" slightly differently — check the program's specific requirements in CASPA's school directory. Start accumulating hours early; it's the most common reason otherwise strong applicants are deferred or rejected.
Is GRE required for PA school?
Requirements vary by program and have been changing. Many PA programs dropped GRE requirements during and after the 2020–2022 period, and many have not reinstated them. Some programs still require it. Check each specific program's admissions requirements through CASPA's directory — don't assume one way or the other. If you're planning to take the GRE, competitive scores for programs that require it are generally Verbal 150+, Quantitative 148+, Analytical Writing 3.5+.
How competitive is PA school admissions?
PA school is highly competitive. CASPA processes roughly 25,000–30,000 applications per cycle for approximately 10,000–12,000 available seats across all programs. Acceptance rates at individual programs are typically 5–15%. The applicant pool has grown faster than the number of programs, making each application cycle more competitive than the last. Strong GPAs, substantial patient care hours, meaningful shadowing, and compelling personal statements are all required to stand out. Start building your application profile 2–3 years before you plan to apply.
Can I get into PA school with a 3.2 GPA?
Yes, but selectively. A 3.2 overall GPA with a 3.2+ Science GPA is below the national average but above the minimum for many programs. Strengthen your application with 2,500+ hours of high-quality patient care experience, a nuanced personal statement, meaningful shadowing and healthcare exposure, and strong letters of recommendation. Apply to 30–40 programs through CASPA, targeting those with published GPA medians near or slightly above your own. An upward GPA trend — improving from 2.8 early to 3.5+ later — tells a positive story that admissions committees notice.
Does shadowing count the same as patient care experience?
No. PA programs distinguish sharply between observation (shadowing) and direct patient care experience. Shadowing — following a PA or physician as an observer — demonstrates exposure and intent but doesn't satisfy the patient care requirement at most programs. Direct patient care means you are performing clinical tasks: drawing blood, taking vitals, assisting with procedures, or providing hands-on support to patients. Many programs explicitly state that shadowing hours should be listed separately from patient care hours in CASPA. Both are valuable, but they serve different purposes in the application.
What science prerequisites do PA programs require?
Nearly universal: Biology I & II (with lab), General Chemistry I & II (with lab), Organic Chemistry (sometimes just one semester), Human Anatomy and Physiology (often two semesters), Microbiology, and Statistics or Biostatistics. Biochemistry is increasingly required. Physics is required by some programs. Coursework requirements vary considerably — use CASPA's school directory to check each program's specific prerequisites before you apply. Plan your post-bacc or prerequisite schedule around the most common requirements to maximize your options.
How does CASPA's GPA calculation differ from my school's GPA?
Three key differences: First, CASPA includes all institutions you attended, not just your primary school. Second, CASPA converts grades to its own 4.0 scale — your school's grade-point assignments don't apply. Third, CASPA doesn't honor grade replacement, forgiveness, or academic renewal. These three differences together mean your CASPA GPA can be substantially different from your school's GPA — sometimes higher (if your school uses a lower scale), sometimes lower (if you had a grade-replaced course that the school excluded). Always estimate your CASPA GPA before applying so you know what programs will see.
What should I do if my science GPA is below 3.0?
Focus on raising it before applying, not alongside the application process. The most effective approach is taking additional upper-level science courses — Anatomy, Physiology, Biochemistry, Genetics — at a four-year institution as a non-degree student. Community college courses can help but may be viewed less favorably. Aim to add 15–20 credits at 3.7+ to meaningfully move a sub-3.0 Science GPA. If your overall trajectory is poor (not just a difficult semester), a structured post-bacc program with advising support is more effective than self-directed additional coursework. A sub-3.0 Science GPA is the most common reason strong patient care hours still don't produce an interview invite.
How many PA schools should I apply to?
Most advisors suggest 20–30 programs through CASPA for a competitive applicant profile (3.5+ GPA, 2,000+ PCE hours). Apply to a mix: programs where your numbers are above their published medians (likely admits), at or near median (competitive), and slightly below (reaches). Given that each program's secondary applications can require additional essays and fees, applying to more than 40 programs is diminishing returns. Prioritize quality of fit — location, program length, curriculum style, clinical rotations — not just acceptance rate. CASPA's portal makes applying broadly feasible since the base application is verified once.
Achievability scenarios
PA school GPA + patient care —
why both bars must clear independently
PA school admissions uses GPA and direct patient care hours as two parallel screens, not a combined score. These three applicants show how the interaction plays out — and why improving one while neglecting the other is still a rejection.
Riya — Science GPA 3.4 + 2,800 EMT Hours = Interview Invitations
Riya graduated with a CASPA Science GPA of 3.42 — below the national average of ~3.5, but shaped by two difficult semesters in Organic Chemistry (retook once, C→B+). Her overall GPA is 3.58. Alongside her studies, she worked as a full-time EMT for two years, accumulating 2,800 direct patient care hours in high-acuity emergency settings.
Overall GPA: 3.58
Direct PCE: 2,800 hrs (EMT, emergency dept)
PA shadowing: 120 hrs across 3 specialties
Riya's application is competitive at programs where the 25th-percentile Science GPA is 3.2–3.4. Her 2,800 EMT hours in emergency medicine — a setting PA programs value highly — differentiate her from applicants who have similar GPAs but desk-based clinical experience. She receives interview invitations at 6 of the 22 programs she applies to and matriculates at a program with an average accepted Science GPA of 3.35.
James — Science GPA 3.65 but Only 700 PCE Hours
James has an excellent academic record: CASPA Science GPA of 3.65 (mostly As in Biology, Chemistry, and Physics), overall GPA of 3.74. He volunteered at a hospital for 700 hours but in an administrative support role that does not meet most programs' definition of direct patient care. He applies during his senior year hoping to matriculate directly after graduation.
Overall GPA: 3.74
Direct PCE: 700 hrs (hospital volunteer, admin)
Direct patient care hours (hands-on): ~0 qualifying hrs
James is screened out in preliminary review at most programs before his GPA is even evaluated — 23 of his 25 programs list minimum direct patient care hours of 1,000–1,500. His academic profile would be competitive; his experience profile is not. He defers his application by one cycle, takes a CNA certification, works 14 months in a skilled nursing facility (2,100 PCE hours), and reapplies with the same GPA and far stronger experience. Second cycle: 9 interview invitations.
Sandra — Science GPA 2.7 Requires GPA Work Before More PCE Helps
Sandra has 1,800 direct patient care hours as a medical assistant — strong experience. But her CASPA Science GPA is 2.71: Gen Chemistry D→B retake, Anatomy C, Physiology C+, and a strong Biology sequence barely keeping the average above 2.7. Her overall GPA is 3.05 due to strong non-science performance.
Overall GPA: 3.05
Direct PCE: 1,800 hrs medical assistant
Gap: Science GPA below most programs' stated minimum (3.0+)
Sandra's 1,800 PCE hours are a genuine strength — but they can't override a Science GPA below the published minimum at ~80% of programs she'd otherwise target. Accumulating more PCE hours while her Science GPA stays at 2.71 doesn't move her past the preliminary GPA screen. Her most effective path: take 20 credits of upper-level science (Biochemistry, Microbiology, Physiology II, Genetics) at a four-year institution, earn As (4.0 × 20 cr = 80 pts), which would raise Science GPA from 2.71 (say, 48 credits = 130 pts) to (130+80) ÷ 68 = 3.09 — just above the 3.0 threshold for many programs. That takes 2 semesters; then she applies.
Related tools & reading
More professional school
calculators and guides
Other professional school GPA calculators — each one models the recalculation system used by that application service:
- Medical School GPA Calculator (AMCAS) — AMCAS computes Overall and BCPM (includes Math) GPAs separately; all attempts counted.
- Dental School GPA Calculator (AADSAS) — AADSAS calculates BCP (Bio+Chem+Physics, no Math) GPA for dental school applications.
- Law School GPA Calculator (LSAC) — LSAC computes a single cumulative GPA across all institutions; no grade replacement.
- Pharmacy School GPA Calculator (PharmCAS) — PharmCAS separates Science, Math, and Non-Science GPAs for pharmacy admissions.
- Nursing School GPA Calculator (NursingCAS) — NursingCAS tracks cumulative and prerequisite GPAs with prerequisite-specific thresholds.
Guides on GPA context for health professional applicants:
- GPA for Graduate School — How professional programs evaluate undergraduate GPA and when experience or standardized test scores compensate for below-median numbers.
- What Is a Good GPA? — GPA benchmarks across academic stages, including competitive thresholds for health professional programs like PA school.
- Weighted vs. Unweighted GPA — Why CASPA Science GPA often differs from what your transcript shows, and how Math exclusion affects the comparison.
- GPA and College Admissions — Holistic GPA evaluation — useful context for pre-PA students managing both their academic record and clinical experience profile.
Further reading
Authority sources
for PA school applicants
- PAEA — Physician Assistant Education Association
CASPA's governing organization. Program statistics, applicant guide, and resources for pre-PA students. - CASPA Applicant Guide 2025–26
Official GPA calculation policy, Science GPA definition, retake rules, and application instructions. - CASPA Policies & Procedures 2025–26
Detailed policies on academic forgiveness, repeat courses, grade conversion, and verification timelines. - AAPA — Becoming a PA
American Academy of Physician Associates guide to the PA profession, training, and career paths.