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Updated October 28, 2026

OTCAS GPA calculator

OTCAS converts each grade to a numeric value, multiplies it by the course's semester hours and divides your quality points by your attempted hours. All grades for repeated courses count, a WF counts as an F, and pass/fail and AP credit are left out. Its course subject list sorts every course into Natural Science, Mathematics, Social Science, Humanities or Other. Natural Science covers biology, chemistry, physics and anatomy and physiology. Psychology is Social Science, and kinesiology, nutrition and geology are Other. The example transcript below gives 3.45 overall, 3.35 natural science and 4.00 math.

Example transcript. Replace it with your courses.

Credit system
Overall
3.45
Natural Science
3.35
Math
4.00

28 graded semester hours.

A 3.35 natural science GPA: interviews decide the rest.

Occupational therapy school interview questions

Rules from OTCAS's help center, Calculating Your OTCAS GPAs, OTCAS Grade Values Chart and OTCAS Course Subjects, checked October 31, 2026. Nothing you type leaves this page. Confetto is not affiliated with AOTA, OTCAS or Liaison.

How does OTCAS calculate your GPA?

OTCAS converts each A to F or 0 to 100 grade to an OTCAS numeric value and multiplies it by the course's attempted credits to get quality points. Your GPA is total quality points divided by attempted credits. OTCAS's own example: an A, B, C, D and F in 4, 3, 4, 3 and 3 credit courses give 36 quality points over 17 credits, a 2.12 GPA.

OTCAS grade values
GradeA+AA-ABB+B
Value4.04.03.73.53.33.0
OTCAS grade values, continued
GradeB-BCC+CC-CD
Value2.72.52.32.01.71.5
OTCAS grade values, continued
GradeD+DD-EFWF
Value1.31.00.70.00.00.0

OTCAS reports a GPA for each school you attended, for each academic year, and for each course subject category. Your freshman through senior years combine with any post-baccalaureate coursework into a cumulative undergraduate GPA, and adding graduate coursework gives your overall GPA.

OTCAS course subject categories

  • Natural Science: biology, anatomy and physiology, microbiology, chemistry, biochemistry and physics.
  • Mathematics: algebra, calculus, statistics, biostatistics and computer science.
  • Social Science: psychology, sociology, anthropology and human development.
  • Humanities: English, history, languages, art, business and education. Other: kinesiology, exercise science, nutrition, geology and the health professions.

This calculator shows your Natural Science and Mathematics GPAs next to your overall GPA. Pick Other science for kinesiology or nutrition so they stay out of Natural Science. OTCAS built its subject list with AOTA and corrects any course listed in the wrong subject during verification.

Retakes, pass/fail and quarter hours

  • Repeated courses: OTCAS does not recognize schools' forgiveness, academic renewal or grade replacement policies. All grades earned for repeated courses count.
  • Non-graded credits such as AP, pass/fail and satisfactory credits stay out of your GPAs. A WF counts as an F.
  • Quarter hours: OTCAS calculates every GPA in semester hours, using 1.0 quarter hour = 0.667 semester hours.

Next steps: the occupational therapy personal statement and OT school interview questions.

Questions people ask

Does OTCAS calculate a science GPA?

Its closest number is the Natural Science GPA, one of the course subject category GPAs OTCAS reports next to school and year-level GPAs. It covers biology, chemistry, physics and anatomy and physiology.

Does psychology count as science on OTCAS?

No. OTCAS lists psychology, abnormal psychology and developmental psychology under Social Science. They count in your overall GPA and your Social Science GPA.

Does OTCAS replace retaken grades?

No. OTCAS does not recognize schools' forgiveness, academic renewal or grade replacement policies. All grades earned for repeated courses count in your GPA.

How does OTCAS convert quarter hours?

OTCAS calculates every GPA in semester hours, using 1.0 quarter hour = 0.667 semester hours. Enter quarter hours as your transcript shows them and this calculator converts them.

Does OTCAS calculate my prerequisite GPA?

OTCAS's GPA page describes school, year-level and course subject GPAs. Programs set their own prerequisites, so check each program for how it works out a prerequisite GPA.

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