What Your Overall GPA Actually Means
Your overall GPA is a single number that represents the average of all your grades across every course you have taken. It is calculated by converting each letter grade to a point value, multiplying that by the number of credits the course was worth, adding all those products together, and dividing by the total number of credits you attempted. The result is usually a number between 0.0 and 4.0, though some schools use different scales.
The reason schools use GPA instead of just listing all your grades is that it lets employers, graduate programs, and scholarship committees see your academic performance at a glance. A 3.5 GPA tells them something concrete about your work across multiple semesters and subjects. Your overall GPA is different from your term GPA (which covers only one semester) and your major GPA (which covers only courses in your major).
Key Takeaways
- Convert each letter grade to its point value using your school's grading scale, which is usually A=4.0, B=3.0, C=2.0, D=1.0, F=0.0.
- Multiply each grade's point value by the number of credits that course was worth, then add all those numbers together.
- Divide the total by the total number of credits you attempted to get your overall GPA.
- Some schools count failed courses and retaken courses differently, so check your school's specific policy before calculating.
- Your school's registrar or student portal usually shows your GPA already calculated, so you can verify your math against their number.
The Grade Point Scale Your School Uses
Most schools use a 4.0 scale where A=4.0, B=3.0, C=2.0, D=1.0, and F=0.0. Some schools add plus and minus grades, so A−=3.7, B+=3.3, B=3.0, B−=2.7, and so on. A few schools use different scales entirely—some cap out at 5.0 if they weight honors or AP courses differently. Your school's registrar office or student handbook will list the exact scale used at your institution.
Find your school's grading scale by checking your student handbook, asking your registrar's office, or logging into your student portal. Do not assume it matches another school's scale. Once you have the scale, write down the point value for each grade you received.
Step-by-Step Calculation
Step 1: List all your courses with their grades and credit hours. Gather your transcript or a list of every course you have taken, the letter grade you received, and how many credits that course was worth. Most courses are worth 3 or 4 credits, but some are worth 1, 2, or 5.
Step 2: Convert each grade to its point value. Using your school's scale, write the point value next to each grade. An A in a 4-credit course becomes 4.0 in that row.
Step 3: Multiply grade points by credits for each course. For each course, multiply the point value by the number of credits. A grade of B (3.0) in a 4-credit course becomes 3.0 × 4 = 12.0 grade points.
Step 4: Add up all the grade points. Sum every number from Step 3. If you took five courses worth 12.0, 12.0, 9.0, 10.0, and 8.0 grade points, the total is 51.0.
Step 5: Add up all the credits. Sum the credit hours from every course. If your five courses were 4, 4, 3, 4, and 3 credits, the total is 18 credits.
Step 6: Divide total grade points by total credits. Take the number from Step 4 and divide it by the number from Step 5. In this example, 51.0 ÷ 18 = 2.83 GPA.
A Real Example You Can Follow
Suppose you took these five courses in your first year:
| Course | Grade | Credits | Point Value | Grade Points |
|---|---|---|---|---|
| English 101 | A | 3 | 4.0 | 12.0 |
| Biology 110 | B+ | 4 | 3.3 | 13.2 |
| History 150 | B | 3 | 3.0 | 9.0 |
| Math 120 | C+ | 4 | 2.3 | 9.2 |
| Spanish 101 | A− | 3 | 3.7 | 11.1 |
Total grade points: 12.0 + 13.2 + 9.0 + 9.2 + 11.1 = 54.5
Total credits: 3 + 4 + 3 + 4 + 3 = 17
Overall GPA: 54.5 ÷ 17 = 3.21
How Retaken Courses and Failed Grades Affect Your GPA
If you retake a course you failed or did poorly in, your school's policy determines whether both grades count toward your GPA or only the new one. Some schools use the grade replacement method, where only the new grade counts and the old one is removed from the GPA calculation entirely. Other schools use the grade forgiveness method, where the old grade does not count but the credits are only counted once. Still others use the cumulative method, where both grades count toward your GPA.
Check your school's academic policies or ask your registrar which method applies to you. This can make a significant difference—a retaken course might raise your GPA by 0.3 points or barely move it at all, depending on the policy. If you are planning to retake a course, understanding this policy beforehand helps you decide whether it is worth the time and money.
Where to Find Your GPA Already Calculated
Your school's registrar office maintains your official transcript, which includes your GPA calculated according to your school's exact rules. You can usually view this through your student portal or by requesting a transcript from the registrar. Your portal may show your term GPA (for the current or most recent semester) and your cumulative GPA (for all semesters combined).
Use the official number from your school rather than relying on your own calculation, because schools sometimes handle transfer credits, repeated courses, or grade changes in ways that are not obvious from a transcript alone. If your calculation does not match the school's number, contact the registrar to understand why—they can explain which courses were weighted differently or excluded.
Frequently Asked Questions
Does a D grade hurt my GPA as much as an F?
A D (usually 1.0 points) hurts less than an F (0.0 points), but both significantly lower your GPA. A D in a 4-credit course costs you 4.0 grade points instead of the 16.0 you would have earned with an A. Whether a D is acceptable depends on your major and your goals—some graduate programs require a C or better in prerequisite courses.
If I transfer schools, does my GPA transfer with me?
Your GPA does not transfer. Your new school will recalculate your GPA using only the credits that count toward your degree there. Some schools do not count transfer credits in your GPA at all, while others include them but recalculate based on their own grading scale. Ask your new school's registrar how transfer credits affect your GPA.
Can I calculate my GPA if I have taken courses at two different schools?
You can calculate a combined GPA by treating both schools' courses the same way: convert grades to points, multiply by credits, add them all up, and divide by total credits. However, your official GPA at each school will be calculated separately. If you are explore to a graduate program, they will ask for your GPA from each institution.
What if a course was pass/fail instead of letter-graded?
Pass/fail courses usually do not count toward your GPA calculation at all—they count toward your total credits but not toward your grade points. Some schools treat a pass as a 4.0 and a fail as a 0.0, but this is less common. Check your school's policy, because it varies.
How often does my overall GPA update?
Your overall GPA updates after each semester when grades are posted. If you took courses in fall and spring, your GPA will reflect both semesters combined. Some schools update it when ready after grades are entered; others wait until the official grade posting date.