GPA Calculator

Most GPA calculators ship one hardcoded letter-to-points table and never mention it. That table is wrong for a large share of American students, and not by a rounding error. Every scale this page offers was read off the institution's own registrar page on the date shown — the generic one is the single exception, and it is marked as a convention precisely because nobody publishes it:

The scale is not even a property of the school. UNC publishes four incompatible scales on one registrar page, and at UM–Dearborn the grade set differs between colleges on the same campus. What governs your transcript is the grading key printed on it, which is why this page asks rather than assumes.

It is not the third decimal. Whether your school writes A− as 3.7 or 3.67 moves a twelve-credit GPA by at most 0.03, and by nothing at all when your pluses and minuses balance out.

The expensive mistake is counting a Pass, a withdrawal or an incomplete as a zero. Those credits carry no grade points, so they belong outside the average entirely — not inside it as zeros.

Your own courses show it. Excluding the 3 ungraded credits gives 3.41. Scoring them as zeros instead gives 2.73 — a gap of 0.68, many times the rounding question everyone argues about.

Exclusion is not universal either — Stanford scores NP as 0.0, California colleges score FW as 0.0, and Florida counts WF, I and NG as zeros. Each scale above carries its own rule rather than borrowing one.

The calculation above with every intermediate value exposed. It updates with the courses you enter, so you can check the result rather than trust it.

This page computes a single term: the semester, quarter or trimester you are entering right now. Your cumulative GPA is a different calculation, not an average of these numbers, and it is worth understanding why before you try to combine them yourself.

A cumulative GPA weights every credit equally across your whole record. Averaging your semester GPAs weights every term equally instead, so a three-credit summer session counts as much as a fifteen-credit autumn. With even credit loads the two agree exactly, which is why the shortcut survives; add one short term and they separate. The cumulative GPA calculator does that arithmetic, and also checks the result against the federal aid floor, which a term GPA never touches.

Quarters, trimesters and summer sessions

The arithmetic here is identical whatever your school calls the term — quality points divided by graded credits. What changes is the credit values that go in, because a quarter hour is not a semester hour. Enter the credits exactly as your transcript prints them and the result is the GPA your registrar will compute.

Converting between the two systems is a separate problem, and a messier one than it looks: no federal rule states a conversion formula at all, and the 1.5 ratio everyone quotes is a quotient somebody derived. What the regulations actually say — and why the answer is a range rather than a number.

Six federal programs read the same credit load and reach different conclusions, because they divide by different denominators and round differently. The panel above runs all six at once — and note that they use your enrolled credits, not your graded ones.

• Full-time status — 12 credits is the federal floor for undergraduates, not the definition. Why 12 is a floor
• Pell grant — paid by enrollment intensity, per term, since 2024–25. The old 100/75/50/25 tiers are gone.
• Federal loans — prorated on the academic year since July 2026. The 2026 proration rule
• GI Bill housing — needs a rate of pursuit strictly above 50%. Exactly half pays nothing.
• F-1 course load — credits are only half the test; at most one class or three credits may be online.
• SAP pace — you must complete at least 67% of what you attempt. A withdrawal counts as attempted and not completed, which is why a W protects your GPA and damages your aid at the same time.