GPA Calculator
A GPA calculator turns your letter grades into a single number — your grade point average on the 4.0 scale. Enter each course with its grade and credit hours, and the tool converts every grade to grade points, weights it by how many credits the course is worth, and averages the result. In one step you get your semester GPA, your cumulative GPA, or both.
The detail that matters most is that GPA is not a simple average of your grades. It’s a credit-weighted average, so a five-credit course counts far more than a one-credit elective. Students use this to track their academic standing for scholarships, the Dean’s List, and college admissions; advisors use it to project where a transcript is heading. A weighted-versus-unweighted toggle handles the difference between high school honors math and a standard 4.0 scale.
GPA Calculator
Add courses and credits to compute your GPA on a 4.0 scale.
Add a letter grade and credit hours on any row to see your GPA.
How GPA is calculated
Your GPA is a credit-weighted average of your grade points. Each course’s points are multiplied by its credit hours, those totals are added together, and the sum is divided by the total number of credits — so heavier courses move your GPA more.
GPA = Σ(points × credits) ÷ Σ(credits)Example: an A in a 3-credit class (4.0 × 3), a B+ in 4 credits (3.3 × 4), and an A- in 3 credits (3.7 × 3) give 36.3 ÷ 10 = 3.63. Turn on the weighted toggle to add Honors (+0.5) and AP/IB (+1.0) bonuses.
Multiply each course’s grade points by its credit hours, add those up, and divide by the total credit hours. An A in a 3-credit class contributes 4.0 × 3 = 12 grade points.
Honors and AP/IB courses earn extra points — commonly +0.5 and +1.0 — so a weighted GPA can rise above 4.0. Flip the toggle to switch between weighted and unweighted.
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How to Use the GPA Calculator
- Enter each course. For every class, select the letter grade and type in its credit hours.
- Choose your settings. Pick weighted or unweighted, and whether you’re calculating a single semester GPA or a cumulative GPA across multiple terms.
- Calculate. The tool returns your GPA on the 4.0 scale, along with your total credit hours and total grade points so you can see exactly how the number was built.
What Is GPA and How Is It Calculated?
GPA, or grade point average, expresses your overall academic performance as one figure between 0.0 and 4.0. Calculating it takes three moves: convert each letter grade to its grade point value, multiply that value by the course’s credit hours to get its quality points, then divide the total quality points by your total credit hours.
That credit-hour weighting is the whole point. Two A’s and one C aren’t simply averaged — if the C came in a four-credit course and the A’s in one-credit labs, the C carries more weight and your GPA reflects that. This is why a GPA calculator asks for credits and a basic grade calculator doesn’t.
The GPA Formula
GPA = (sum of grade points × credit hours for every course) ÷ total credit hours
Letter Grade to Grade Points: The Conversion Table
Every GPA calculation starts by converting letters to points on the 4.0 scale. Most U.S. schools use this mapping:
| Letter Grade | Grade Points |
|---|---|
| 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 |
| D− | 0.7 |
| F | 0.0 |
An A+ is usually worth the same 4.0 as an A, though a few schools assign it 4.3. Exact values can vary by institution, so it’s worth checking your registrar’s scale.
Worked Example: Calculating a Semester GPA
Here’s how the formula plays out across four courses. Multiply each grade’s points by its credit hours to get quality points, add those up, and divide by the total credits:
| Course | Grade | Grade Points | Credits | Quality Points |
|---|---|---|---|---|
| Biology | A | 4.0 | 4 | 16.0 |
| English Composition | B+ | 3.3 | 3 | 9.9 |
| Calculus | B | 3.0 | 4 | 12.0 |
| U.S. History | A− | 3.7 | 3 | 11.1 |
| Total | 14 | 49.0 |
Divide 49.0 total quality points by 14 total credit hours, and the semester GPA is 3.5. Notice that the four-credit B in Calculus pulls harder on the average than the three-credit A− in History — exactly the effect a plain average would miss.
Weighted vs. Unweighted GPA
An unweighted GPA treats every course the same and caps out at 4.0, no matter how demanding the class. It’s the standard for most college transcripts.
A weighted GPA rewards harder courses with bonus grade points. High schools typically add 0.5 for honors classes and a full 1.0 for Advanced Placement (AP) and International Baccalaureate (IB) courses, which pushes the scale up to 5.0. On a weighted scale, an A in an AP course is worth 5.0 instead of 4.0, so a student loading up on rigorous classes can finish above a 4.0. When you compare GPAs — for admissions, say — it’s important to know which kind you’re looking at.
Semester GPA vs. Cumulative GPA
Your semester GPA (also called term or quarter GPA) covers a single grading period. Your cumulative GPA, or overall GPA, combines every term on your transcript into one running figure. Some schools also track a major GPA that counts only courses in your field.
A common mistake is to average your semester GPAs directly — that only works if every term carried the same number of credits. Cumulative GPA weights each semester by its credit hours. A 3.8 over 12 credits combined with a 3.0 over 18 credits doesn’t make 3.4; the heavier 18-credit term pulls the cumulative GPA down to about 3.32. The math is the same formula as a single semester, just applied to every course you’ve ever taken.
What Is a Good GPA?
“Good” depends on the goal, but some benchmarks are widely recognized. A 4.0 is a perfect unweighted GPA. Anything from 3.5 up is generally considered strong, and many schools set the Dean’s List or honor roll at roughly 3.5. Latin honors at graduation often land near cum laude at 3.5, magna cum laude at 3.7, and summa cum laude at 3.9, though every institution sets its own cutoffs. On the other end, falling below a 2.0 frequently triggers academic probation.
Context matters most. Competitive scholarships, graduate programs, and selective college admissions each carry their own minimum GPA requirements, and a 3.3 that’s strong for one path may fall short for another. Treat these numbers as reference points, not absolutes.
How to Raise Your GPA
Because GPA is credit-weighted, the fastest way to move it is to earn higher grades in your high-credit courses — improving a four-credit B to an A shifts the average far more than acing a one-credit seminar. Many schools also allow grade replacement, where retaking a course swaps the old grade points for new ones. To plan ahead, pair this tool with a letter grade calculator to see what percentage you need for a given letter, a weighted grade calculator to figure out your target on a final, and a final grade calculator to find the score that hits your goal GPA.
Who Uses a GPA Calculator
Students at every level rely on it — high schoolers tracking a weighted GPA for college applications, undergraduates monitoring cumulative standing for scholarships and the Dean’s List, and graduate students confirming they meet program minimums. Academic advisors use it to map out a path back from probation or up toward honors. Anyone with a transcript and a goal has a reason to run the numbers.
Frequently Asked Questions
How do you calculate GPA?
Convert each letter grade to grade points on the 4.0 scale, multiply each by the course’s credit hours to get quality points, add up all the quality points, and divide by your total credit hours.
What is a good GPA?
A GPA of 3.5 or higher is widely considered strong and often qualifies for the Dean’s List. A 4.0 is perfect. What counts as “good,” though, depends on your scholarships, programs, or admissions targets.
What’s the difference between weighted and unweighted GPA?
An unweighted GPA caps at 4.0 and treats all courses equally. A weighted GPA adds bonus points for honors, AP, and IB classes, raising the maximum to 5.0 to reward harder coursework.
How do you calculate cumulative GPA?
Total the quality points (grade points × credits) from every course across all your semesters, then divide by your total credit hours. You can’t simply average your semester GPAs unless each term had equal credits.
How do credit hours affect GPA?
Credit hours act as weights. A grade in a four-credit course influences your GPA four times as much as the same grade in a one-credit course, which is why GPA is a weighted average rather than a plain one.
Is a 3.5 GPA good?
Yes — a 3.5 is a strong GPA that typically meets Dean’s List criteria and is competitive for many scholarships and graduate programs, though the most selective paths may ask for more.
What is a 4.0 GPA?
A 4.0 is the maximum on an unweighted scale, meaning straight A’s across every course. On a weighted scale, a student in AP and honors classes can exceed 4.0.
Can you raise your GPA?
Yes. Earning higher grades — especially in high-credit courses — and retaking classes where your school offers grade replacement will both pull your GPA up over time.