GPA Calculator
Calculate your GPA based on your course grades and credit hours.
What Is a GPA Calculator?
A GPA Calculator helps students calculate their Grade Point Average (GPA) based on their course grades and credit hours. It converts letter grades into grade points and uses the credit hours for each course to calculate a weighted GPA on a 4.0 scale.
This calculator is useful for students who want to estimate their GPA for a semester or check how different course grades may affect their overall academic performance. Because courses can have different credit hours, courses with more credits can have a greater effect on your GPA.
How Does a GPA Calculator Work?
A GPA calculator uses the grade points assigned to each letter grade and combines them with the credit hours for each course. Each course contributes a certain number of quality points based on its grade and credit hours.
The calculator then adds the quality points from all courses and divides them by the total number of credit hours.
For example, if you receive an A worth 4.00 grade points in a course worth 3 credit hours:
4.00 × 3 = 12.00 quality points
The same calculation is performed for each course before determining your overall GPA.
How to Use the GPA Calculator
Using our GPA Calculator is simple:
- Enter the name of each course.
- Select the letter grade you received for each course.
- Enter the credit hours for each course.
- Click Add Another Course if you need to enter more courses.
- Click Calculate GPA.
- Review your GPA and total credit hours in the result.
You can add additional courses when needed, making the calculator useful for semesters with different numbers of classes.
GPA Formula
The standard weighted GPA formula is:
GPA = Total Quality Points ÷ Total Credit Hours
Quality points for each course are calculated using:
Quality Points = Grade Points × Credit Hours
For example, a B grade worth 3.00 grade points in a 3-credit course contributes:
3.00 × 3 = 9.00 quality points
After calculating the quality points for every course, add them together and divide by the total number of credit hours.
4.0 GPA Scale
This GPA Calculator uses a standard 4.0 grading scale:
| Letter Grade | Grade Points |
|---|---|
| A | 4.00 |
| A− | 3.70 |
| B+ | 3.30 |
| B | 3.00 |
| B− | 2.70 |
| C+ | 2.30 |
| C | 2.00 |
| C− | 1.70 |
| D+ | 1.30 |
| D | 1.00 |
| F | 0.00 |
Grading systems can vary between schools, colleges, and universities. Some institutions may use different grade-point values or policies for plus and minus grades, so check your school’s official grading scale when calculating an official GPA.
GPA Calculation Example
Suppose you completed three courses:
- Mathematics: A — 3 credit hours
- English: B — 3 credit hours
- Biology: C — 3 credit hours
Using the 4.0 scale:
Mathematics:
4.00 × 3 = 12.00 quality points
English:
3.00 × 3 = 9.00 quality points
Biology:
2.00 × 3 = 6.00 quality points
Total quality points:
12.00 + 9.00 + 6.00 = 27.00
Total credit hours:
3 + 3 + 3 = 9
GPA:
27.00 ÷ 9 = 3.00
Your weighted GPA would therefore be 3.00.
How Credit Hours Affect Your GPA
Credit hours determine how much each course contributes to a weighted GPA. A course with more credit hours can have a larger effect on your GPA than a course with fewer credit hours.
For example, an A in a 4-credit course contributes more quality points than an A in a 2-credit course. This is why calculating a simple average of grade points may not give you the correct weighted GPA when your courses have different credit hours.
What Is a Weighted GPA?
A weighted GPA takes the credit hours of each course into account when calculating your average. Courses with more credit hours contribute more to the final result.
For example, if you earn different grades in courses worth 2, 3, and 4 credit hours, the 4-credit course will have a larger effect on your weighted GPA than the 2-credit course.
Our GPA Calculator uses course credit hours to calculate this weighted average.
GPA vs. Percentage
GPA and percentage are different ways of measuring academic performance.
A percentage represents the marks earned compared with the total possible marks. GPA converts course grades into grade points and typically uses a scale such as 4.0.
There is no single universal formula for converting a percentage directly into a GPA because schools and universities may use different grading policies.
If you want to calculate the average of several percentage grades without credit-hour weighting, you can use our Average Grade Calculator.
GPA vs. Semester Grade
A semester grade and GPA are related but they are not the same thing.
A semester grade may be expressed as a percentage or letter grade based on your performance in your courses. GPA represents your performance using grade points, often on a 4.0 scale.
If you want to calculate a weighted semester grade using percentage grades and credit hours, use our Semester Grade Calculator.
If you need to determine what score you need on your final exam to reach a target course grade, you can use our Final Exam Calculator.
When Should You Use a GPA Calculator?
A GPA Calculator can be useful when you want to estimate your semester GPA, check the effect of different grades, or understand how credit hours influence your academic average.
You can use the calculator after receiving grades for your courses or to estimate your GPA before final grades are posted.
For an official academic record, always compare your result with your school’s grading policies because your institution may use a different grading scale, rounding method, or rules for repeated and transfer courses.
Can I Add More Than Three Courses?
Yes. You can click Add Another Course to add additional courses to the calculator.
Enter the grade and credit hours for each course, and the calculator will include the additional courses when calculating your weighted GPA.
You can also remove additional courses if you no longer need them.
Frequently Asked Questions
What is a good GPA?
What is considered a good GPA depends on your school, program, academic goals, and requirements. A 3.0 GPA is generally a solid academic average, while some competitive programs may expect a higher GPA.
How is GPA calculated?
GPA is calculated by multiplying each course’s grade points by its credit hours, adding the quality points from all courses, and dividing the total quality points by the total credit hours.
What is a 4.0 GPA?
A 4.0 GPA is the maximum value on a standard 4.0 grading scale. An A is commonly assigned 4.00 grade points, although exact grading policies can vary between institutions.
Does a course with more credit hours affect GPA more?
Yes. In a weighted GPA calculation, courses with more credit hours contribute more quality points and therefore have a greater effect on the overall GPA.
Can I calculate GPA without credit hours?
You can calculate an unweighted average of grade points without credit hours, but it may not represent your official weighted GPA when your courses have different credit hours.
Does this GPA Calculator use a 4.0 scale?
Yes. This calculator uses a 4.0 scale with letter grades from A through F and corresponding grade-point values.
Can I use this calculator for my official college GPA?
The calculator can provide an estimate based on the grades and credit hours you enter. However, your college or university may use different grading rules, grade-point values, rounding methods, or policies for repeated courses and transfer credits.
For an official GPA, follow your school’s academic policies.
What is the difference between GPA and percentage?
Percentage represents marks as a percentage of the total possible marks, while GPA converts grades into grade points using a grading scale such as 4.0. The conversion between percentage and GPA varies by institution.
How can I improve my GPA?
Improving your GPA generally requires earning stronger grades in your courses. Courses with more credit hours have a greater effect on a weighted GPA, so performing well in higher-credit courses can make a larger difference.
Can I calculate my semester GPA with this calculator?
Yes. If your courses use a 4.0 grading scale, you can enter your semester courses, letter grades, and credit hours to estimate your semester GPA.
Remember that your school’s official GPA calculation may use different rules or grading policies.