GPA Calculator
Calculate your cumulative GPA from course credits and grades.
By Evan Carter · Updated August 15, 2026
Cumulative GPA
4.00
Based on your course grades and credits
How a GPA Is Built
Grade Point Average condenses your performance across many courses into a single number on a common scale, which is why students, schools, and employers rely on it to assess academic standing at a glance. This calculator takes the grade and credit hours for each of your courses and returns your credit-weighted GPA along with the totals behind it. Add a row for every course, choose a letter grade, set the credit hours, and the result updates immediately so you can see exactly how each class moves the average.
How GPA Is Calculated
GPA is a weighted average rather than a simple mean of your letter grades. The calculation has three steps. First, each letter grade is converted to grade points on the 4.0 scale. Second, each course's grade points are multiplied by its credit hours to produce quality points. Third, all the quality points are added together and divided by the total number of credit hours. The formula is GPA = (sum of grade points times credit hours) divided by total credit hours.
Example: A Four-Course Semester
Imagine a semester with four courses: an A (4.0) in a 3-credit class, a B (3.0) in a 4-credit class, an A- (3.7) in a 3-credit class, and a C+ (2.3) in a 2-credit class. Multiply each grade by its credits to get the quality points: 12.0, 12.0, 11.1, and 4.6. Those sum to 39.7 quality points across 12 total credit hours. Dividing 39.7 by 12 gives a GPA of about 3.31. Notice that the B in the 4-credit course weighs on the result more than the C+ in the 2-credit course, even though C+ is the lower grade.
The 4.0 Scale
The standard US scale runs from 0.0 for an F up to 4.0 for an A. Most colleges use plus and minus grades that sit between the whole numbers, giving a finer picture of performance:
- 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
Some institutions vary this slightly — a handful award a 4.0-capped A+, and others skip certain minus grades — so it is worth confirming the exact point values your school uses if your official transcript does not match.
Why Credit Hours Matter
Not all courses count equally toward your GPA, and this is the single most misunderstood part of the calculation. A 4-credit course exerts roughly four times the pull of a 1-credit course on your average. That is why the calculator asks for credit hours alongside each grade: a strong grade in a heavy course can offset a weaker grade in a lighter one, and the reverse is also true. Treating every course as equal would distort the result, which is exactly the mistake a plain average of letter grades makes.
Weighted vs. Unweighted GPA
This calculator computes an unweighted GPA, meaning every course is scored on the same 4.0 scale regardless of difficulty. Many high schools also report a weighted GPA that grants bonus points for more demanding courses, so an A in an AP, IB, or honors class might count as 5.0 instead of 4.0. As a result, weighted GPAs can rise above 4.0. Admissions offices frequently consider both numbers together with the rigor of the courses you took, so neither figure tells the whole story on its own.
Cumulative GPA and Planning Ahead
To find a cumulative GPA across several semesters, combine every course you want to include and divide total quality points by total credit hours, just as you would for one term. Averaging each semester's GPA only works if the semesters carried identical credit loads, because terms with more credits should count for more. You can also use the tool to plan: enter your completed courses to see where you stand, then add hypothetical future courses to test what grades you would need to reach a target GPA or hold a scholarship requirement.
Common Mistakes to Avoid
- Averaging letter grades directly instead of weighting them by credit hours.
- Including pass/fail courses, which usually grant credit but are commonly excluded from the GPA itself.
- Assuming every school uses the same point values; minor scale differences can shift your GPA by a few hundredths.
Frequently Asked Questions
How is GPA calculated?
GPA (Grade Point Average) is calculated by multiplying each course's grade points by its credit hours, summing all the products, and dividing by the total credit hours. For example, an A worth 4.0 in a 3-credit course contributes 12 grade points. Add up every course's grade points, divide by the sum of the credit hours, and the result is your credit-weighted GPA.
What is the difference between weighted and unweighted GPA?
An unweighted GPA uses the standard 4.0 scale regardless of course difficulty, which is what this calculator computes. A weighted GPA adds extra points for harder courses, so an A in an AP, IB, or honors class might count as 5.0 instead of 4.0, and weighted GPAs can exceed 4.0. Colleges often look at both, plus the rigor of the courses behind the number.
Why do credit hours change my GPA?
GPA is a weighted average, not a plain average of letter grades. Courses with more credit hours pull the result toward their grade more strongly. A B in a 4-credit course affects your GPA more than a B in a 1-credit course, so an A in a heavy course can offset a lower grade in a lighter one. That is why both the grade and the credit hours are required for each course.
Can I use plus and minus grades?
Yes. This calculator supports the common plus/minus scale: 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), and F (0.0). Some schools also award an A+ but still cap it at 4.0, while others omit certain minus grades, so confirm your institution's exact scale if your transcript differs.
What is a good GPA?
On the 4.0 scale, a GPA above 3.0 is commonly viewed as good, 3.5 and up as very good, and 3.7 and up as excellent. These are general benchmarks rather than fixed cutoffs. Expectations vary widely by program: many graduate schools and competitive scholarships look for at least a 3.0, while context such as course difficulty and trend over time also matters.
How do I calculate my cumulative GPA across several semesters?
Combine every course from all the terms you want to include and divide total grade points by total credit hours, exactly as you would for a single semester. You cannot simply average each semester's GPA unless every semester had identical credit hours, because semesters with more credits should carry more weight in the cumulative figure.
Do pass/fail or transfer courses count toward GPA?
It depends on the school. Pass/fail courses usually grant credit toward graduation but are typically excluded from the GPA calculation, since there is no letter grade to convert. Transfer credits often count toward degree requirements while the original grades may or may not factor into your new institution's GPA. To match an official transcript, omit any course your school excludes.
Can I use this to figure out the grades I need next term?
Yes, by working backward. Enter your completed courses to see your current standing, then add hypothetical future courses with the grades you expect and watch how the overall GPA shifts. Trying different grade combinations shows what you would need in upcoming credits to reach a target GPA, which is useful for planning a semester or protecting a scholarship threshold.
This calculator provides estimates for informational purposes only. Results should not be considered as financial advice. Actual amounts may vary based on additional factors not included in this calculator. Consult a qualified financial advisor for personalized advice.
Tax data is based on 2026 federal and state rates (IRS Rev. Proc. 2025-32, Tax Foundation). State bracket thresholds may differ slightly from official figures due to rounding and inflation adjustments. Data is updated annually and may not reflect mid-year legislative changes.
See how we calculate and our editorial policy for the formulas, sources, and review process behind this tool.