Two students earn identical A’s. One took all regular classes; the other took five APs. On an unweighted transcript they’re identical — 4.0 each. On a weighted transcript the AP student shows something like 5.0. Both numbers are “your GPA”; they just answer different questions, and knowing which is which saves real confusion at application time.

Unweighted: the flat ruler

The unweighted scale is the original: every course, whatever its difficulty, converts its letter to the same points — A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0, with +/− refinements where the school uses them (A− = 3.7, B+ = 3.3). Multiply by credits, sum, divide. Nothing else enters the formula.

The ceiling is 4.0, full stop. A perfect report card — straight A’s — is a 4.0 whether those A’s came from AP Physics or Introduction to Kayaking. That’s the scale’s virtue and its blind spot in one sentence: it measures how well you did, but says nothing about what you attempted.

Weighted: rigor gets a bonus

Weighted scales exist because colleges wanted the “what you attempted” part visible in the number. The convention adds a bump to advanced courses:

Level	Typical bump	A becomes	B becomes
Regular	—	4.0	3.0
Honors	+0.5	4.5	3.5
AP / IB	+1.0	5.0	4.0

That’s the scheme this site’s calculator uses — but it’s a convention, not a standard. Some districts give honors the full +1.0; some weight only AP, not honors; some apply the bump only to grades of C or better; a few weight dual-enrollment college courses differently again. Your school’s profile (a document counselors send with every transcript) spells out the local rules — and that document, not any website, is the authority on your number.

Two details people get wrong. First, the bump almost never rescues an F: failing an AP class is 0 points, not 1.0. Second, weighting is applied per course before averaging — you can’t “add 1.0 to your GPA” for taking APs; a single 3-credit AP A among ten regular courses nudges the average far less than the +1.0 suggests.

Worked example, both scales at once

Same semester, computed both ways — this is exactly the site’s default example:

Course	Credits	Grade	Level	Unweighted pts	Weighted pts
Biology	3	A−	Regular	3.7	3.7
US History	3	B+	Honors	3.3	3.8
English	4	A	AP	4.0	5.0

• Unweighted: (11.1 + 9.9 + 16.0) ÷ 10 = 3.70
• Weighted: (11.1 + 11.4 + 20.0) ÷ 10 = 4.25

A 0.55 gap from three courses. Over four years of a rigorous load, the gap typically widens — which is why the same student can report 3.7 unweighted and 4.4 weighted. Neither is inflated; they’re different instruments.

Which number should you quote?

Use the one the form asks for, and don’t improvise. If a scholarship application says “unweighted GPA on a 4.0 scale,” reporting your weighted 4.4 isn’t ambitious, it’s wrong — and easy to check against the transcript. When a form just says “GPA,” report whatever your transcript prints, since that’s the number the school stands behind.

For self-assessment, watch both. Unweighted tells you how consistent your grades are; weighted tells you whether the difficulty is being credited. A student with 3.6 unweighted / 4.3 weighted is in a different position than 3.6 unweighted / 3.6 weighted — same grades, but only one took on rigor.

Where it stops mattering as much as you think

Admissions offices see thousands of weighting schemes — 4.0, 5.0, 6.0, 100-point, percentage systems. Because no two schools weight alike, many colleges recalculate every applicant’s GPA on their own internal scale (the subject of how colleges recalculate your GPA). The practical takeaway: the weighted/unweighted fight on your transcript matters less than the two things both versions agree on — the grades themselves, and the level of the courses they were earned in. A 3.9 that came from hard classes reads well under any formula; gaming the scale doesn’t survive recalculation.

Frequently asked questions

Is a 4.3 weighted GPA good?

It means strong grades in hard courses — roughly an A- average across mostly AP/honors classes. Whether it's competitive depends on context: at a school where the top weighted GPAs reach 4.8, 4.3 is solid but not valedictorian territory. Colleges read it next to your school's profile, not in a vacuum.

Do colleges look at weighted or unweighted GPA?

Both — usually in that order for course rigor, then many recalculate their own. Selective colleges often strip weighting and re-add it by their own rules (commonly +1.0 for AP/IB only, core subjects only). An unweighted 3.9 with a light course load can read worse than a weighted 4.2 built on APs.

Does a B in an AP class beat an A in a regular class?

On the +1.0 scale, a B in AP counts 4.0 — same as an A in a regular class. But that's only the arithmetic; admissions readers also weigh the pattern. Consistent B's in every AP still signals you can handle rigor, which is the point of weighting in the first place.

Why doesn't my school weight GPAs?

Plenty don't — some districts argue weighting pushes students into AP classes they aren't ready for, or punishes kids whose schools offer few advanced sections. If your school doesn't weight, colleges know it from the school profile and typically recalculate rigor themselves. A flat 4.0 scale doesn't put you behind.

Can an unweighted GPA be above 4.0?

Only on an uncapped scale where A+ = 4.3 — technically 'unweighted' but over 4.0. On the standard capped scale, 4.0 is the ceiling: an A+ and an A are both 4.0.