College GPA Calculator

Step 1: Enter your letter grades for each course, separated by commas. Use standard letter grades like A, A-, B+, B, B-, C+, C, C-, D+, D, D-, or F. The calculator recognizes all standard grades on the 4.0 scale.

Step 2: Enter the credit hours for each course in the same order, separated by commas. If your Calculus course is 4 credits and English is 3 credits, enter them in matching order. If you leave credits blank, each course defaults to 3 credit hours.

Step 3: Click Calculate. The calculator multiplies each grade's point value by its credit hours, sums the total quality points, and divides by your total credit hours to produce your weighted GPA.

You can calculate a single semester or your entire academic career. For cumulative GPA across multiple semesters, enter all courses from every semester at once.

GPA stands for Grade Point Average. It is a standardized numerical representation of your academic performance, calculated on a scale from 0.0 to 4.0 in the United States. Every college, university, and most high schools use GPA as the primary measure of academic achievement.

Your GPA matters because it directly affects your academic and professional future. Graduate school admissions committees use GPA as a primary filter — most competitive programs require a minimum 3.0 to 3.5 GPA. Employers in fields like finance, consulting, and engineering often set GPA cutoffs for entry-level positions, typically at 3.0 or 3.5. Scholarship committees evaluate GPA when awarding merit-based financial aid, and many scholarships require maintaining a minimum GPA to keep the award.

There are two types of GPA that matter. Semester GPA reflects your performance in a single term and resets each semester. Cumulative GPA averages your performance across all semesters and is the number that appears on your transcript. Most employers and graduate schools look at your cumulative GPA.

Unweighted GPA treats all courses equally on the 4.0 scale, while weighted GPA gives extra points for honors, AP, or IB courses. A weighted GPA can exceed 4.0 — an A in an AP class might count as 5.0 on a weighted scale. This calculator uses the standard unweighted 4.0 scale, which is the most commonly used system across American colleges and universities.

The GPA formula is straightforward once you understand quality points.

Quality Points = Grade Point Value × Credit Hours

GPA = Total Quality Points ÷ Total Credit Hours

Here is how it works step by step. First, convert each letter grade to its numerical equivalent on the 4.0 scale. An A equals 4.0 points, a B+ equals 3.3 points, a C equals 2.0 points, and so on. Next, multiply each grade's point value by the number of credit hours for that course. A B+ in a 4-credit course produces 3.3 × 4 = 13.2 quality points. A course with more credits has a larger impact on your GPA than a course with fewer credits — this is why GPA is a weighted average, not a simple average.

Finally, add up all the quality points from every course and divide by the total number of credit hours. The result is your GPA.

For cumulative GPA across multiple semesters, the same formula applies — you simply include all courses from every semester in the calculation. Each semester does not carry equal weight. A semester where you took 18 credits affects your cumulative GPA more than a semester where you took 12 credits.

Example 1 — Strong Semester:
A student takes five courses: Calculus (4 credits, A), English (3 credits, A-), Chemistry (4 credits, B+), History (3 credits, A), and Psychology (3 credits, B). The quality points are: 4×4.0 = 16.0, 3×3.7 = 11.1, 4×3.3 = 13.2, 3×4.0 = 12.0, 3×3.0 = 9.0. Total quality points: 61.3. Total credits: 17. GPA = 61.3 ÷ 17 = 3.61. This student makes the Dean's List at most schools.

Example 2 — Mixed Results:
Three courses: Biology (4 credits, C+), Mathematics (3 credits, B-), and Art (2 credits, A). Quality points: 4×2.3 = 9.2, 3×2.7 = 8.1, 2×4.0 = 8.0. Total: 25.3. Credits: 9. GPA = 25.3 ÷ 9 = 2.81. Notice how the 4-credit Biology course with a C+ pulls the GPA down significantly because it carries the most weight.

Example 3 — How One Bad Grade Affects GPA:
Four courses with an A, A, A, and F (all 3 credits each). Quality points: 4.0+4.0+4.0+0.0 = 12.0 × 3 = 36.0. Total credits: 12. GPA = 36.0 ÷ 12 = 3.0. A single F in an otherwise perfect semester drops the GPA from 4.0 to 3.0 — a full point. This demonstrates why avoiding F grades is critical for maintaining a strong GPA.

Prioritize high-credit courses. A 4-credit course impacts your GPA more than a 2-credit elective. If you need to focus your study time, put more effort into the courses with the most credits. Moving a 4-credit course from a B to an A adds 4.0 quality points, while the same improvement in a 2-credit course only adds 2.0.

Use the retake policy strategically. Most colleges allow you to retake a course and replace the old grade. If you earned a D or F in a core course, retaking it for a B or A can significantly boost your cumulative GPA. Check your school's specific retake policy — some cap the replacement grade, and some only allow one retake per course.

Calculate before you drop. Before withdrawing from a course, use this calculator to compare your GPA with and without that class. A W (withdrawal) does not affect GPA but does appear on your transcript. Sometimes earning a C is better than a W if you are applying to competitive programs that scrutinize withdrawals.

Understand the diminishing return. The more credits you have completed, the harder it becomes to move your cumulative GPA. A student with 120 completed credits would need to earn straight A's for an entire additional semester just to raise their GPA by about 0.1 points. Start strong — raising a GPA from 2.5 is much harder than maintaining a 3.5 from the beginning.

Pass/Fail courses do not help your GPA. Courses taken as Pass/Fail (P/NP) are excluded from GPA calculation. This can protect your GPA if you are taking a difficult elective outside your major, but it also means a strong performance in that course will not boost your GPA either.