Grade & GPA
GPA Calculator (5.0 Scale)
Weighted GPA for honours and AP courses — which is how a GPA gets above 4.0.
GPA Calculator (5.0 Scale)
About the GPA Calculator (5.0 Scale)
A weighted GPA rewards course difficulty. Standard courses top out at 4.0, honours courses add 0.5, and AP or IB courses add a full 1.0 — so an A in AP Chemistry is worth 5.0. That bonus is the entire reason some students report a GPA above 4.0.
This calculator applies that weighting properly. Enter each course with its letter grade, its credit hours, and whether it is standard, honours or AP/IB. You get the weighted GPA, the unweighted GPA for the same courses, and the difference between them — which is the number that shows what the bonus is actually doing for you.
One rule the tool enforces: a failing grade earns no bonus. An F in an AP course is worth 0.0, exactly like an F anywhere else. Taking a hard class does not protect a failing grade, and no legitimate weighting system pretends otherwise.
How to use the GPA Calculator (5.0 Scale)
- Enter each course with its grade and course type.
- Standard adds nothing, honours adds 0.5, AP or IB adds 1.0.
- Enter credits — often 1 per course at high-school level.
- Select Calculate weighted GPA.
- The unweighted figure is shown alongside so you can see the boost.
How the weighting works
Start with the standard 4.0 grade points, then add the bonus for the course type. The result is capped at 5.0.
Weighted points = base points + course bonus (maximum 5.0)
bonus: standard 0, honours +0.5, AP or IB +1.0. A failing grade earns no bonus.
| Letter | Standard | Honours (+0.5) | AP / IB (+1.0) |
|---|---|---|---|
| A | 4.0 | 4.5 | 5.0 |
| A− | 3.7 | 4.2 | 4.7 |
| B+ | 3.3 | 3.8 | 4.3 |
| B | 3.0 | 3.5 | 4.0 |
| B− | 2.7 | 3.2 | 3.7 |
| C+ | 2.3 | 2.8 | 3.3 |
| C | 2.0 | 2.5 | 3.0 |
| D | 1.0 | 1.5 | 2.0 |
| F | 0.0 | 0.0 | 0.0 |
Look at the B row. A B in an AP course scores 4.0 — the same as an A in a standard course. That trade-off sits behind a lot of course-selection decisions, and it is worth understanding before you make one.
Worked example
Five one-credit courses: AP Calculus A, AP History B, Honours English A−, Standard Spanish A, Standard PE B+.
Weighted: 5.0 + 4.0 + 4.2 + 4.0 + 3.3 = 20.5 across 5 credits.
Weighted GPA 4.10 — unweighted 3.60 — the bonus is worth +0.50
Same grades, two very different headline numbers. This is why comparing GPAs between schools tells you less than people assume.
How much one AP class actually moves your GPA
Less than most students expect, because the bonus is diluted across every course you take. Assume a 3.5 unweighted average across a six-course year:
| AP courses taken | Weighted GPA | Gain |
|---|---|---|
| 0 | 3.50 | — |
| 1 | 3.67 | +0.17 |
| 2 | 3.83 | +0.33 |
| 3 | 4.00 | +0.50 |
| 4 | 4.17 | +0.67 |
Each AP course adds about 0.17 to a six-course year, assuming you hold the same letter grade. Drop a letter to get it and you have gone backwards. The honest question is not "will this raise my GPA" but "can I hold my grade in a harder class".
Weighting systems are not standard
There is no national rule here, and the variation is genuine:
- Some schools use a 6.0 scale, adding 2.0 for AP courses.
- Some add the bonus only to passing grades of C or above.
- Some weight honours and AP identically at +1.0.
- Some weight core academic subjects only, excluding PE and electives.
Because of this, colleges routinely discard the weighted GPA on your transcript and recalculate their own. Most strip the weighting back out, count only core academic courses, and compare applicants on that basis alongside the rigour of the transcript itself.
Report the weighted GPA your school issues on applications, not one you calculated yourself. Use this tool to understand and plan, not to replace an official figure.
Which number to focus on
Track both. Your unweighted GPA is the cleaner measure of how you are performing, and it is closer to what admissions offices reconstruct. Your weighted GPA is what your school reports and what class rank is usually built on. Neither one tells the whole story on its own.
For the unweighted figure, use the 4.0 scale calculator. To work out what you need going forward, try the GPA planner.
Convert an unweighted GPA to the 5.0 scale
You cannot convert straight across with one formula. A weighted GPA depends on which classes were AP or honors. Here is the right way:
- Start with each class's 4.0-scale points (A = 4, B = 3, and so on).
- Add 1 point for each AP or IB class, and 0.5 for each honors class — or whatever your school uses.
- Average all the classes again.
Example: A in AP Biology (4 + 1 = 5), B in honors English (3 + 0.5 = 3.5), A in regular math (4). Average: (5 + 3.5 + 4) ÷ 3 = 4.17 weighted, versus 3.67 unweighted.
Related guides
Other ways to use this calculator
- 5.0 GPA calculator and 5.0 GPA scale — honors and AP classes earn up to 5.0 points.
- Weighted GPA calculator — weighted vs unweighted GPA: weighted adds the honors bonus, unweighted caps at 4.0.
- AP GPA calculator, honors GPA and IB GPA — count your AP, honors and IB classes as advanced courses and the bonus is applied.
- Convert GPA to 5.0 scale — add the honors or AP bonus to each advanced class’s 4.0 points.
Frequently asked questions
A weighted GPA adds points for course difficulty. Standard courses cap at 4.0, honours add 0.5 and AP or IB add 1.0, so an A in an AP class is worth 5.0. It exists to stop students being penalised for choosing harder courses. An unweighted GPA ignores difficulty entirely and caps everyone at 4.0 — which is why only weighted GPAs go above 4.0.
Roughly 0.17 across a six-course year, if you hold the same letter grade you would have earned anyway. Three AP courses lift a 3.5 to about 4.0. The bonus gets diluted across your full course load, so no single class transforms the number. And if the harder course costs you a letter grade, you finish lower than you started.
They look at both, then usually build their own. Most selective colleges recalculate GPA from your transcript, strip out the weighting, count only core academic subjects, and assess course rigour separately. So the weighted number rarely travels intact. What does travel is the transcript itself — strong grades in demanding courses, which is what the weighting was trying to signal anyway.
On a standard 5.0 system, no — an A in an AP course is worth exactly 5.0 and that is the ceiling. But some schools use a 6.0 scale that adds 2.0 for AP courses, and a few add bonuses on top of an A+ worth 4.3. Weighting policies genuinely differ between districts, so check your school handbook for the scale it actually applies.
Add the weighting bonus to each AP, IB or honors class, usually 1 point for AP and 0.5 for honors, then average all your classes again. Without knowing which classes were weighted, a straight conversion is not possible.
Sources and further reading
- College Board — How to calculate GPA on a 4.0 scale — base grade point values before weighting
- College Board — AP courses and college admission — how AP coursework is treated by colleges
- Academic grading in the United States — variation in weighted GPA scales between districts