College GPA Calculator
College GPA runs on quality points and credit hours, and small details — a plus or a minus, a 4-credit lab — move the number more than most students expect. This is a GPA calculator college students can check their transcript against: add each course with its letter grade and credit hours, and you will see your GPA on the 4.0 scale plus the quality points behind every single course, exactly the way your registrar builds it.
Excellent — that's honors-level standing.
How colleges calculate GPA: quality points and semester hours
Every college course carries credit hours (often called semester hours) — roughly the weekly contact time, and the weight that course gets in your GPA. For each course, the registrar multiplies your grade points by those hours to get quality points: an A in a 4-credit chemistry course is worth 16 quality points; a B in a 3-credit history course is worth 9. Add the quality points, divide by the total hours, and you have your GPA.
Example: Biology A (4 credits, 16.0 quality points), History B+ (3 credits, 9.9) and English A− (3 credits, 11.1) total 37.0 quality points over 10 credit hours — a GPA of 37.0 ÷ 10 = 3.70. The letter-to-points conversions come from the standard grading scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, and so on down to F = 0.0.
Where colleges differ
The formula is universal, but three details vary by school. First, plus/minus grading: some colleges grade in whole letters only, so an A− counts as a full 4.0 there. Second, course retakes: grade replacement, averaging both attempts, and counting every attempt all exist — your catalogue holds your school's rule. Third, what counts: pass/fail courses, transfer credits and repeated courses are handled differently everywhere, and your transcript's printed GPA is always the official word. Use this calculator to predict and to check, not to overrule the registrar.
One term or every term?
The rows above calculate the courses you enter — one term, or your whole degree if you add everything. For the common follow-ups, use the dedicated tools: the semester GPA calculator for a single term, and the cumulative GPA calculator to blend a new term into the GPA you already have. The GPA calculator combines both views, and our guides walk through how to calculate GPA and how to find your GPA on your transcript.
Frequently asked questions
How do colleges calculate GPA?
The registrar converts each course's letter grade to grade points, multiplies by the course's credit hours to get quality points, adds them all up, and divides by your total credit hours. Term GPA uses one term's courses; cumulative GPA uses every course on your transcript. The formula is the same at nearly every US college — the details below are where schools differ.
What are quality points?
Quality points are grade points × credit hours for a single course: an A in a 4-credit course earns 4.0 × 4 = 16 quality points, while a B in a 3-credit course earns 3.0 × 3 = 9. They are the building blocks of GPA — total quality points ÷ total credit hours is your GPA — and this calculator shows them for every course as you type.
What is a good college GPA?
On the 4.0 scale, 3.5 and above is strong, 3.0–3.4 is solid, and most colleges put students below 2.0 on academic probation. Many scholarships, honours programmes and internships set their line at 3.0 or 3.5. Our guide to what is a good GPA explains how the bands are read in different situations.
If I retake a class, does the new grade replace the old one?
It depends entirely on your college. Some schools replace the first attempt with the newest grade in your GPA, some average both attempts, and some count every attempt. The transcript usually keeps a record of all attempts either way. Check your course catalogue or ask the registrar before counting on a retake.
Can I have a 4.0 GPA if I got an A-?
Not on a plus/minus scale: an A- is worth 3.7 points, so a single A- pulls a term below 4.0. At colleges that grade in whole letters only, an A- is recorded as an A and a 4.0 stays possible. A small number of schools also award 4.3 for an A+, but most cap an A+ at 4.0 — including this calculator.
How many credit hours is a full-time semester?
At most US colleges, 12 credit hours or more per term counts as full-time, and a typical course load is 14–16 hours. Because GPA weights every grade by its hours, a 4-credit course moves your GPA more than a 1-credit lab — plan your effort accordingly.