GPA Calculator
A GPA calculator averages your grade points, weighted by credits: GPA = Σ(grade points × credits) ÷ Σ(credits). An A (4.0) in a 4-credit class and a B (3.0) in a 3-credit class give (16 + 9) ÷ 7 = 25 ÷ 7 ≈ 3.57. A weighted GPA adds a boost for Honors or AP classes before averaging.
Semester GPA 3.8
Semester GPA 4.06
Options: Honors/AP boosts, earlier semesters, major GPA
Semester by semester
| Semester | Credits | Unweighted | Weighted | Cumulative |
|---|---|---|---|---|
| Fall | 4 | 3.43 | 3.8 | 3.8 |
| Spring | 3.5 | 3.63 | 4.06 | 3.92 |
Course by course
| Course | Grade | Points | Credits | Quality pts |
|---|---|---|---|---|
| English 10 Honors | A− | 4.2 (+0.5) | 1 | 4.2 |
| Algebra II | B+ | 3.3 | 1 | 3.3 |
| AP World History | B | 4.0 (+1) | 1 | 4 |
| Chemistry | 91% (A−) | 3.7 | 1 | 3.7 |
| English 10 Honors | A | 4.5 (+0.5) | 1 | 4.5 |
| Algebra II | B | 3.0 | 1 | 3 |
| AP World History | A− | 4.7 (+1) | 1 | 4.7 |
| Physical Education | A | 4.0 | 0.5 | 2 |
Which grade change helps most?
| Course | Change | New GPA | Gain |
|---|---|---|---|
| Algebra II | B+ → A− | 3.97 | +0.053 |
| English 10 Honors | A− → A | 3.96 | +0.04 |
| AP World History | B → B+ | 3.96 | +0.04 |
| Chemistry | A− → A | 3.96 | +0.04 |
| Algebra II | B → B+ | 3.96 | +0.04 |
| AP World History | A− → A | 3.96 | +0.04 |
Show steps
- Turn each grade into grade points on the A+ = 4.0 plus/minus scale. English 10 Honors: A− = 3.7; Algebra II: B+ = 3.3; AP World History: B = 3.0; Chemistry: 91% is A− = 3.7; English 10 Honors: A = 4.0; Algebra II: B = 3.0; AP World History: A− = 3.7; Physical Education: A = 4.0.
- Add the weighting boost (Honors +0.5, AP/IB/Dual +1). English 10 Honors: 3.7 + 0.5 = 4.2; AP World History: 3.0 + 1 = 4.0; English 10 Honors: 4.0 + 0.5 = 4.5; AP World History: 3.7 + 1 = 4.7.
- Multiply by the credits to get quality points. English 10 Honors: 4.2 × 1 = 4.2; Algebra II: 3.3 × 1 = 3.3; AP World History: 4.0 × 1 = 4; Chemistry: 3.7 × 1 = 3.7; English 10 Honors: 4.5 × 1 = 4.5; Algebra II: 3.0 × 1 = 3; AP World History: 4.7 × 1 = 4.7; Physical Education: 4.0 × 0.5 = 2.
- Add them up: 29.4 quality points over 7.5 credits.
- Divide the quality points by the credits: 29.4 ÷ 7.5 = 3.92. That is your cumulative weighted GPA.
- Each semester GPA uses only that semester’s classes: Fall 15.2 ÷ 4 = 3.8; Spring 14.2 ÷ 3.5 ≈ 4.06.
- The unweighted GPA leaves out the boosts: 26.4 ÷ 7.5 = 3.52.
| Letter | Percent | Grade points | Honors | AP/IB/Dual |
|---|---|---|---|---|
| A+ | 97–100 | 4.0 | 4.5 | 5.0 |
| A | 93–96.99 | 4.0 | 4.5 | 5.0 |
| A− | 90–92.99 | 3.7 | 4.2 | 4.7 |
| B+ | 87–89.99 | 3.3 | 3.8 | 4.3 |
| B | 83–86.99 | 3.0 | 3.5 | 4.0 |
| B− | 80–82.99 | 2.7 | 3.2 | 3.7 |
| C+ | 77–79.99 | 2.3 | 2.8 | 3.3 |
| C | 73–76.99 | 2.0 | 2.5 | 3.0 |
| C− | 70–72.99 | 1.7 | 2.2 | 2.7 |
| D+ | 67–69.99 | 1.3 | 1.8 | 2.3 |
| D | 63–66.99 | 1.0 | 1.5 | 2.0 |
| D− | 60–62.99 | 0.7 | 1.2 | 1.7 |
| F | below 60 | 0.0 | 0.0 | 0.0 |
How to use the GPA calculator
- Pick Weighted if your school gives extra points for Honors, AP, IB or dual enrollment classes, or Unweighted for a plain 4.0 GPA.
- Press Clear all to remove the example, then type one row per class: a name, the grade as a letter (B+) or a percent (88), and the credits. In weighted mode, choose the course type.
- Add a semester for each term, or open Options and enter your earlier cumulative GPA and credits instead of every past class. To get a major GPA too, type your major’s course codes there (for example MATH).
- Choose your scale at the top: A+ = 4.0, A+ = 4.3, or A to F without plus and minus.
- Read your semester and cumulative GPA, open Show steps for the full working, and use the GPA planner tab to find the term GPA you need for a goal.
GPA formula
A GPA is a weighted average. Each class counts in proportion to its credits:
GPA = Σ(grade points × credits) ÷ Σ(credits)
- grade points are the points for the letter grade, such as A = 4.0, B+ = 3.3 and C = 2.0.
- credits are the credit hours or units of the class.
- grade points × credits is called quality points.
The National Center for Education Statistics describes it the same way: total grade points earned divided by total credits attempted. Pass/fail and audited classes are left out.
Weighted vs unweighted GPA
An unweighted GPA uses the plain 4.0 scale for every class, so the top GPA is 4.0 (or 4.3 if your school gives 4.3 for an A+). A weighted GPA adds extra points for harder classes. A common convention is +0.5 for Honors and +1.0 for AP, IB or dual enrollment, so an A in an AP class counts as 5.0.
Schools differ. Some use other boosts, some cap the weighted GPA, and some do not weight at all. College Board notes that colleges may recalculate your GPA in their own way. Check your school handbook and change the boost values in the calculator to match it.
Semester GPA and cumulative GPA
A semester GPA uses only that term’s classes. A cumulative GPA uses every class you have taken. To combine them, add the quality points and the credits; do not average the GPAs:
Cumulative GPA = (old GPA × old credits + new quality points) ÷ (old credits + new credits)
Worked GPA examples
Example 1: A college semester
A student earns an A in Calculus (4 credits), a B+ in Chemistry (3), an A− in History (3) and a C in Economics (3). The quality points are 4.0 × 4 = 16, 3.3 × 3 = 9.9, 3.7 × 3 = 11.1 and 2.0 × 3 = 6. They add up to 43 over 13 credits, so the GPA is 43 ÷ 13 ≈ 3.31.
Example 2: Weighted and unweighted high school GPA
A student has an A− in English 10 Honors, a B+ in Algebra II, a B in AP World History and 91% in Chemistry, each worth 1 credit. On the plus/minus scale, 91% is an A−. The unweighted points are 3.7, 3.3, 3.0 and 3.7, so the unweighted GPA is 13.7 ÷ 4 ≈ 3.43.
With +0.5 for Honors and +1.0 for AP, English becomes 4.2 and World History becomes 4.0. The weighted GPA is 15.2 ÷ 4 = 3.8.
Example 3: Cumulative GPA with earlier semesters
Your cumulative GPA is 3.2 over 45 credits, and you earn a 3.6 over 15 credits this term. Old quality points: 3.2 × 45 = 144. New: 3.6 × 15 = 54. The new cumulative GPA is (144 + 54) ÷ (45 + 15) = 198 ÷ 60 = 3.3. Averaging 3.2 and 3.6 would give 3.4, which is wrong because the earlier semesters carry three times as many credits.
Example 4: The GPA you need
You have a 3.2 over 60 credits and want a 3.3 after 30 more credits. You need 3.3 × 90 = 297 quality points and have 3.2 × 60 = 192, so the new classes must supply 105 points. That is 105 ÷ 30 = 3.5, a term GPA between B+ and A−.
If you wanted a 3.4 after only 15 credits, you would need (3.4 × 75 − 192) ÷ 15 = 4.2, which is above 4.0 and out of reach. At a 4.0 in every class, you would need 60 × (3.4 − 3.2) ÷ (4.0 − 3.4) = 20 credits.
Major GPA, retakes and transfer credits
A major GPA uses the same formula, but only with the classes in your major. Start each course name with its code (MATH 201, MATH 310) and type the code in Options; the calculator then shows the major GPA next to the overall one.
Retake rules vary. If your school replaces the old grade, type R for the first attempt so it is left out. If your school averages both attempts, enter both grades. Many schools list transfer credits on your transcript without counting their grades in your GPA, so check how your registrar treats them before you add them.
What is a good GPA?
On the unweighted 4.0 scale, a 3.0 is a B average, a 3.5 sits between B+ and A−, and a 4.0 means straight A’s. Whether a GPA is good depends on what you need it for: scholarships, honors programs, graduate schools and employers each set their own minimums. Look up the cutoff for your goal, then plan toward it.
Percent to GPA conversion table
Many US schools use the plus/minus cutoffs below. Your school may use different ones, so check your handbook. The federal High School Transcript Study uses a simpler scale (A = 90–100, B = 80–89, C = 70–79, D = 60–69, F = below 60), and College Board’s guide starts a D at 66%.
| Letter | Percent | 4.0 scale | 4.3 scale |
|---|---|---|---|
| A+ | 97–100 | 4.0 | 4.3 |
| A | 93–96 | 4.0 | 4.0 |
| A− | 90–92 | 3.7 | 3.7 |
| B+ | 87–89 | 3.3 | 3.3 |
| B | 83–86 | 3.0 | 3.0 |
| B− | 80–82 | 2.7 | 2.7 |
| C+ | 77–79 | 2.3 | 2.3 |
| C | 73–76 | 2.0 | 2.0 |
| C− | 70–72 | 1.7 | 1.7 |
| D+ | 67–69 | 1.3 | 1.3 |
| D | 63–66 | 1.0 | 1.0 |
| D− | 60–62 | 0.7 | 0.7 |
| F | below 60 | 0.0 | 0.0 |
If you only know your percent in a class, find its letter grade first with the grade calculator.
How to raise your GPA
- Focus on classes with more credits. Raising a 4-credit class from B to A adds 4 quality points; the same change in a 1-credit class adds only 1.
- Start early. The more credits you have, the slower your GPA moves. With a 3.0 over 90 credits, a perfect 4.0 over the next 15 credits lifts you to (270 + 60) ÷ 105 ≈ 3.14.
- Use the planner. It shows early whether a goal fits in one semester or needs two.
Common GPA mistakes
- Averaging semester GPAs without their credits. A 12-credit term and an 18-credit term do not count equally.
- Counting pass/fail or withdrawn classes. They usually add no grade points and no credits.
- Averaging percents first and then converting. The letter grade of each class is what earns the points.
- Comparing a weighted GPA with an unweighted one. Say which one you mean when you report it.
Results are estimates for planning. Your school’s registrar calculates your official GPA, and its rules come first.
GPA practice quiz: 10 questions
Test yourself with 10 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.
Multiply by credits and divide by total credits: (4.0 × 4 + 3.0 × 3) ÷ 7 = 25 ÷ 7 ≈ 3.57. The plain average 3.5 ignores the credits.
Quality points: 12 + 12 + 2 = 26 over 3 + 4 + 1 = 8 credits, so 26 ÷ 8 = 3.25. The plain average of 4, 3 and 2 is 3.0.
A B is worth 3.0, and the AP boost adds 1.0, so it counts as 3.0 + 1.0 = 4.0.
Weighted points are 4.0 + 0.5 = 4.5, 3.0 + 1.0 = 4.0 and 2.0. (4.5 + 4.0 + 2.0) ÷ 3 = 3.5. The unweighted GPA would be 3.0.
Add quality points: 3.0 × 30 + 3.8 × 15 = 90 + 57 = 147 over 45 credits, and 147 ÷ 45 ≈ 3.27. Averaging 3.0 and 3.8 gives 3.4, which ignores the credits.
You need 3.0 × 60 = 180 quality points and have 2.8 × 40 = 112, so the new classes must supply 68. Then 68 ÷ 20 = 3.4.
Needed = (3.5 × 75 − 3.0 × 60) ÷ 15 = (262.5 − 180) ÷ 15 = 5.5. That is above 4.0, so a 3.5 cannot be reached in 15 credits.
88% is a B+ on the plus/minus scale, and a B+ is worth 3.3 grade points.
Leave the P class out completely: (4.0 × 3 + 3.0 × 3) ÷ 6 = 21 ÷ 6 = 3.5. Dividing by 8 credits gives 2.63, which wrongly counts the P class as zero.
Quiz complete
Frequently asked questions
How do I calculate my GPA?
Turn each letter grade into grade points (A = 4.0, B = 3.0 and so on), multiply by the class credits, add those products, and divide by the total credits. Two 3-credit classes with an A and a B give (12 + 9) ÷ 6 = 3.5.
What is my GPA with all A's and one B?
It depends on how many classes you take and their credits. With five classes of equal credits, four A's and one B give (4 × 4.0 + 3.0) ÷ 5 = 3.8. If the B is in a class worth more credits, the GPA drops a little more.
Can a GPA be higher than 4.0?
Yes. A weighted GPA can go above 4.0 because Honors and AP classes earn extra points, and some schools give 4.3 for an A+. An unweighted GPA on a standard 4.0 scale tops out at 4.0.
What letter grade is a 3.5 GPA?
A 3.5 sits halfway between a B+ (3.3) and an A− (3.7) on the plus/minus scale. It is an average, so it can come from many mixes, for example half A's and half B's in classes with equal credits.
Do pass/fail classes count toward GPA?
Usually not. The NCES transcript study leaves pass/fail and audited classes out of the GPA, and the calculator does the same for P, NP, W and I grades. Some schools count a failed pass/fail class as an F, so check your school's policy.
Sources
Formulas and grade scales checked against these sources in November 2026.
- National Center for Education Statistics, NAEP High School Transcript Study: How is grade point average calculated?
- College Board BigFuture: How to calculate your GPA on a 4.0 scale
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