๐ GPA Calculator: College & High School GPA on the 4.0 Scale
By ToolNimba Editorial Team ยท Reviewed by ToolNimba Editorial Team, Academic Standards Review ยท Updated 2026-06-19
This GPA calculator is for general informational purposes only. GPA scales, grade-point values, weighting rules, and honours thresholds vary by school. Always confirm the exact policy with your registrar or admissions office before relying on a number for an application or academic decision.
This GPA calculator works out your grade point average on the standard US 4.0 scale. Enter the letter grade and the number of credit hours for each course, and the tool converts every grade to its point value, weights it by credits, and returns your overall GPA. Because it weights by credit hours, a course worth 4 credits counts more toward your average than a 1-credit elective. Add as many courses as you need to find a single-term or full-transcript GPA.
What is the GPA Calculator?
Your grade point average (GPA) is a single number that summarises your academic performance. Each letter grade is mapped to a point value: an A is worth 4.0, a B is 3.0, a C is 2.0, a D is 1.0 and an F is 0.0, with plus and minus grades landing in between (an A- is 3.7, a B+ is 3.3, and so on). To find your GPA you multiply each course's grade points by its credit hours, add those products together (these are called quality points), and divide by the total number of credit hours. Weighting by credits is what makes the average fair: it gives heavier courses more influence than light electives.
It helps to know the difference between a few kinds of GPA. An unweighted GPA caps every course at 4.0 no matter how hard it is, which is the scale this calculator uses by default. A weighted GPA, common in US high schools, adds a bonus for honours, AP or IB classes so the scale can run up to 5.0 (an A in an AP class might count as 5.0 rather than 4.0). The two are not interchangeable, so always check which scale a school or application is asking for before you report a number. Many colleges recalculate a self-reported weighted GPA back to an unweighted 4.0 figure during admissions.
There is also a difference between a term GPA and a cumulative GPA. A term (or semester) GPA covers only the courses you took in one period. A cumulative GPA pools every course across every term you have completed, again weighted by credit hours, to give your running average over your whole programme. Most transcripts show both, and it is usually the cumulative figure that scholarships, honour rolls and graduate programmes care about. Because the cumulative figure already carries every credit you have ever taken, a single strong or weak term moves it less and less as you progress.
GPA scales are not universal. The US uses the 4.0 scale described here, but other systems map letters differently: some Canadian schools use a 4.3 scale where A+ is 4.3, India often reports a 10-point CGPA, and the UK uses degree classifications (First, 2:1, 2:2) rather than a GPA at all. International applicants frequently need to convert a percentage or a foreign scale into a US 4.0 equivalent, which is why a clean letter-to-point chart matters. When in doubt, follow the exact conversion table published by the institution you are applying to.
GPA also drives real consequences beyond bragging rights. Most schools require a minimum cumulative GPA (commonly 2.0) to stay in good academic standing and avoid probation or dismissal. Scholarships, athletic eligibility, the dean's list, and graduate or professional school admissions all set GPA floors. At graduation, Latin honours (cum laude, magna cum laude, summa cum laude) are awarded on the cumulative GPA, so the grades you earn early carry weight for years. Use this calculator to check where you stand now and to model what future grades would do to your average.
When to use it
- Checking your semester GPA before final grades are locked in.
- Working out the cumulative GPA you will report on a college or scholarship application.
- Seeing how a heavy course (more credit hours) will pull your average up or down.
- Comparing the GPA you need to reach the dean's list or stay off academic probation.
- Estimating whether you are on track for Latin honours (cum laude, magna, summa) at graduation.
- Modelling a what-if scenario, such as the grades you need this term to lift your average to a target.
How to use the GPA Calculator
- Add a row for each course you want to include in the GPA.
- Pick the letter grade you earned (or expect to earn) for that course.
- Enter the credit hours (or units) the course is worth.
- Repeat for every course in the term, or paste an entire transcript for a cumulative GPA.
- Read your credit-weighted GPA, which updates instantly as you add or change rows.
Formula & method
Worked examples
You earned an A in a 3-credit course, a B in a 4-credit course, and a C in a 3-credit course.
- Convert grades to points: A = 4.0, B = 3.0, C = 2.0
- Multiply by credits: (4.0 ร 3) = 12.0, (3.0 ร 4) = 12.0, (2.0 ร 3) = 6.0
- Sum the points: 12.0 + 12.0 + 6.0 = 30.0
- Sum the credits: 3 + 4 + 3 = 10
- Divide: 30.0 รท 10 = 3.0
Result: GPA 3.00
You earned an A- in a 4-credit course, a B+ in a 3-credit course, and an F in a 3-credit course.
- Convert grades to points: A- = 3.7, B+ = 3.3, F = 0.0
- Multiply by credits: (3.7 ร 4) = 14.8, (3.3 ร 3) = 9.9, (0.0 ร 3) = 0.0
- Sum the points: 14.8 + 9.9 + 0.0 = 24.7
- Sum the credits (the failed course still counts): 4 + 3 + 3 = 10
- Divide: 24.7 รท 10 = 2.47
Result: GPA 2.47
Cumulative GPA: last term you earned 30 quality points over 15 credits (a 2.00 term GPA), and this term you earn an A and a B in two 3-credit courses.
- This term quality points: (4.0 x 3) + (3.0 x 3) = 12.0 + 9.0 = 21.0
- Add last term: 30.0 + 21.0 = 51.0 total quality points
- Add credits: 15 + 6 = 21 total credit hours
- Divide: 51.0 / 21 = 2.43
Result: Cumulative GPA 2.43 (up from 2.00)
Letter grade to grade points (US 4.0 scale)
| Letter grade | Grade points |
|---|---|
| A+ / A | 4.0 |
| A- | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B- | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C- | 1.7 |
| D+ | 1.3 |
| D | 1.0 |
| F | 0.0 |
Rough percentage to letter grade guide (varies by school)
| Percentage | Letter grade |
|---|---|
| 93 to 100% | A |
| 90 to 92% | A- |
| 87 to 89% | B+ |
| 83 to 86% | B |
| 80 to 82% | B- |
| 77 to 79% | C+ |
| 73 to 76% | C |
| 70 to 72% | C- |
| 60 to 69% | D |
| Below 60% | F |
Weighted GPA bonus by course type (typical high school)
| Course type | A grade unweighted | A grade weighted |
|---|---|---|
| Standard / regular | 4.0 | 4.0 |
| Honours | 4.0 | 4.5 |
| AP / IB / dual enrolment | 4.0 | 5.0 |
Latin honours: typical cumulative GPA cutoffs (varies by school)
| Honour | Typical GPA range |
|---|---|
| Cum laude | 3.5 to 3.69 |
| Magna cum laude | 3.7 to 3.89 |
| Summa cum laude | 3.9 to 4.0 |
Common mistakes to avoid
- Ignoring credit weighting. Averaging the grade points directly (a plain mean) treats a 1-credit lab the same as a 5-credit core course. Always weight each grade by its credit hours.
- Mixing 4.0 points and percentages. A GPA is built from grade points, not raw percentages. Convert each percentage to a letter grade first, then to its point value, before averaging.
- Dropping failed courses from the total. An F is worth 0.0 points, but its credit hours still count in the denominator. Leaving them out inflates your GPA above the real figure.
- Confusing weighted high-school GPA with the 4.0 scale. A 5.0-scale weighted GPA from honours or AP classes is not the same number a college expects on a 4.0 unweighted scale. Report the scale the application asks for.
- Averaging term GPAs to get a cumulative GPA. You cannot simply average your semester GPAs unless every term had identical credits. Add up all quality points and divide by all credit hours instead.
- Assuming a retake erases the old grade. Some schools replace the original grade, but many average both attempts or keep the first on the transcript. Check your registrar policy before counting on a clean replacement.
- Counting pass/fail or transfer credits incorrectly. Pass/fail courses usually earn credit but no grade points, and transfer credits often count toward the degree without affecting GPA. Including them can distort your number.
Glossary
- GPA
- Grade point average: the credit-weighted average of your grade points, usually on a 0 to 4.0 scale.
- Credit hour
- A unit measuring how much a course counts, often tied to weekly class time. Heavier courses carry more credit hours and more weight in your GPA.
- Weighted GPA
- A GPA that adds bonus points for harder classes (honours, AP, IB), letting the scale exceed 4.0, often up to 5.0.
- Cumulative GPA
- Your running GPA across every term you have completed, weighted by credit hours over your whole programme.
- Quality points
- The product of a grade value and its credit hours for one course. Summing quality points and dividing by total credits gives the GPA.
- Unweighted GPA
- A GPA capped at 4.0 for every course regardless of difficulty. This is the standard scale this calculator uses.
- Latin honours
- Graduation distinctions (cum laude, magna cum laude, summa cum laude) awarded on cumulative GPA or class rank.
- Academic probation
- A status given when a GPA falls below the required minimum (often 2.0), warning a student to improve or face dismissal.
- CGPA
- Cumulative grade point average. The same as cumulative GPA, a term common in India and some other countries, sometimes on a 10-point scale.
Frequently asked questions
How is GPA calculated?
Convert each letter grade to its point value on the 4.0 scale, multiply each by the course's credit hours, add up those products, then divide by the total credit hours. The result is your credit-weighted GPA.
What is a good GPA?
On a 4.0 scale, a GPA around 3.0 is solid, 3.5 and above is strong, and 3.7 or higher is often the bar for honours and competitive programmes. What counts as "good" depends on your school and goals, but 2.0 is usually the minimum to stay in good standing.
How do I calculate weighted GPA?
A weighted GPA gives bonus points to harder classes: an A in an AP or honours course may count as 5.0 instead of 4.0. Assign each course its weighted point value, multiply by credit hours, sum, and divide by total credits. This calculator uses the standard unweighted 4.0 scale.
Does a failed class count toward GPA?
Yes. An F is worth 0.0 grade points, and its credit hours still count in the total you divide by. That is why a single failed course can pull your GPA down sharply, especially if it carries a lot of credits.
How can I raise my GPA?
Earning higher grades in future courses lifts the average, and the effect is larger for high-credit courses. Retaking a failed or low-graded class (where the policy replaces the old grade) and avoiding new low grades both help. The more credits already on your transcript, the slower a single term moves the cumulative figure.
What is cumulative GPA?
Cumulative GPA is your overall average across every term you have completed, weighted by credit hours, rather than just one semester. It is the figure most scholarships, honour rolls and graduate programmes look at.
What is the difference between weighted and unweighted GPA?
An unweighted GPA caps every course at 4.0 regardless of difficulty. A weighted GPA adds bonus points for honours, AP or IB classes, so it can rise above 4.0 (often up to 5.0). Unweighted treats all A grades equally; weighted rewards harder coursework. This tool uses the unweighted 4.0 scale unless you assign weighted point values yourself.
Is a 3.5 GPA good?
Yes. A 3.5 unweighted GPA usually places you in the B+ to A- range and is competitive for most colleges and many scholarships. It is also the common threshold for cum laude at graduation. Highly selective programmes may look for 3.7 or above, but 3.5 is a strong record at most schools.
How do I convert a percentage or foreign grade to a 4.0 GPA?
First map your percentage to a US letter grade using a chart (for example, 90 to 92% is an A-), then convert that letter to its 4.0 point value. International scales such as a 10-point CGPA or UK degree class do not convert by a single formula, so use the official conversion table published by the institution you are applying to.
What GPA do you need for cum laude, magna, and summa cum laude?
There is no national standard, but typical cutoffs are around 3.5 to 3.69 for cum laude, 3.7 to 3.89 for magna cum laude, and 3.9 or above for summa cum laude. Some schools instead award honours to the top percentage of the graduating class, so always check your own university policy.
Does retaking a course replace the old grade in my GPA?
It depends on the school. Some institutions replace the original grade so only the retake counts, while others average both attempts or keep the original on the transcript. Check your registrar grade-replacement policy before assuming a retake will fully erase a low grade.