Methodology

Where the grading scales come from

Every university grading scale on this site is taken from that institution's own registrar, course catalog, academic bulletin, or published student rules — never from another calculator site, a forum answer, or a search-result snippet. Of the 93 schools we cover, 93 have had their scale confirmed against an official source, and 93 carry a full policy write-up with the source links published directly on the page so you can check our work.

This matters more than it sounds. Grading scales are not standardized, and the differences are not cosmetic. Rutgers awards no minus grades and sets B+ at 3.5 rather than the more common 3.3. Texas A&M ignores plus and minus entirely for GPA purposes. The University of Florida uses E instead of F and awards no A+ at all. UCLA and UC Berkeley both award an A+ but cap it at 4.0, so it cannot pull you above a perfect average. A calculator that assumes one universal 4.0 scale will quietly give most of these students the wrong number.

Why some pages show no honors cutoff

A large number of universities do not set Latin honors at a fixed GPA. Penn State awards distinction to the top 12% of each college's graduating class, split into 2% summa, 4% magna, and 6% cum laude. The University of Michigan's College of LSA uses the top 3%, 10%, and 25% and has no Dean's List at all. UCLA and UC Berkeley publish real GPA numbers, but recalculate them every year from the graduating cohort — Berkeley has required a 3.989 for Highest Distinction in a recent year, a figure that would be meaningless quoted as permanent.

When a school works this way, we say so instead of printing a cutoff. It is trivial to invent a plausible-looking 3.5/3.7/3.9 table for all ninety-odd schools, and plenty of sites do. We would rather tell you the honest thing — that your cutoff is set by your cohort and published by your registrar each year — than hand you a number that could convince you that you had earned an honor you had not.

The same rule governs everything else here. If we could not confirm a field against a primary source, that section simply does not appear on the page. A missing section is correct; a guessed one is a defect.

What each calculator computes

GPA

GPA is a credit-weighted average, not a plain average. We multiply each course's grade points by its credit hours to get quality points, sum those, and divide by total credit hours. Courses with no credit value or an unrecognized grade are skipped rather than counted as zero, because a skipped row and a failed course are not the same thing.

Weighted class grade

Your current grade is the sum of each category's score multiplied by its weight, divided by the total weight entered. Dividing by the weight you actually entered — not by an assumed 100 — means a partial syllabus still returns a sensible answer instead of silently deflating your grade.

Score needed on a final

Given your current grade, the final's weight w, and your target, the score you need is (target − current × (1 − w)) ÷ w. The result is deliberately not clamped: if it tells you that you need a 112%, that is real information about whether your target is still reachable, and rounding it down to 100% would hide that.

Planning the rest of a course

The by-category mode treats any item without a score as still to come, so ungraded work stays out of your current average rather than being counted as a zero. It reports what you have banked, the average you need across everything left, and the best and worst overall grades still mathematically available to you.

Where we refuse to invent precision

There is no universal formula for converting a GPA to a percentage. A letter grade covers a band — a B is roughly 83–86% on the most common US scale — so a GPA maps to a range, not a point. Our converter returns that range. Any tool that answers “3.0 = 85.0%” has chosen a number for you and not told you it was a choice.

The same applies to CGPA-to-percentage conversions, which depend on a multiplier your institution sets, and to comparing a weighted GPA across schools that weight honors and AP courses differently. Where a conversion is convention rather than arithmetic, we show the convention and name it as one.

Limits you should know about

• These are study tools, not official records. Your registrar's calculation is the one that counts, and it may include transfer credit, repeat-forgiveness rules, or academic-standing adjustments that a general calculator cannot see.
• Latin honors, Dean's List, and standing rules frequently differ within a university. Engineering, business, and nursing schools commonly publish their own thresholds that override the university-wide ones shown here.
• Policies change. Each policy write-up carries the date we last checked it against the source, so you can judge how fresh it is rather than having to trust it blindly.
• Nothing you type is transmitted anywhere. Every calculation runs in your browser, so we never see, store, or transmit your grades.

Corrections

If a scale or policy here is wrong or out of date, we want to fix it. Send us the school and a link to the official page via our contact page and we will correct it and update the verification date. Corrections that come with an official source get handled fastest, because that is the only kind of evidence we will publish on.

You can see the full dataset on the university grading scales page, or start from the school list.