GPA Calculator — Free Online Tool

What Is GPA Calculator?

A free online GPA calculator. Add your courses with credit hours and letter grades to calculate your GPA on a standard 4.0 scale. Supports plus/minus grading (A+, A, A-, B+, etc.).

Grade Point Average (GPA) is a standardized way to measure academic performance on a 4.0 scale, used by high schools, colleges, and universities for admission decisions, scholarship eligibility, academic standing, and graduation requirements. GPA Calculator computes your cumulative GPA from individual course grades and credit hours.

Add courses one at a time by entering the course name (optional), credit hours, and letter grade. The calculator supports the full range of letter grades including plus and minus: A+ (4.0), 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). Courses can be added or removed dynamically, and the GPA recalculates with each change.

The GPA is calculated as the sum of (grade points × credit hours) divided by the total credit hours. A course with an A (4.0) worth 3 credits contributes 12 grade points. A course with a B (3.0) worth 4 credits contributes 12 grade points. The GPA would be (12 + 12) / 7 = 3.43. The calculator shows the total credits, total grade points, and cumulative GPA.

The course list is editable — you can remove courses or change grades to see how different outcomes would affect your GPA. This is useful for planning: "If I get an A in biology this semester, what will my GPA be?" The real-time calculation makes grade planning interactive and immediate.

Real-World Use Cases for GPA Calculator

Calculating Semester GPA for College Students

You took 5 courses this semester: Biology (4 credits, B+), Calculus (3 credits, A-), English (3 credits, B), History (3 credits, C+), and Economics (3 credits, A). Add each course with its grade. The calculator shows the GPA as approximately 3.20 based on 16 total credits.

Planning Target Grades for Scholarship Eligibility

A scholarship requires a 3.5 GPA. Your current GPA from 30 credits is 3.2. You have 15 credits remaining this year. Use the calculator to experiment: adding all As (4.0) for the remaining 15 credits would raise the cumulative GPA to approximately 3.47 — still below 3.5. Update the strategy accordingly.

Converting International Grades to US 4.0 Scale

An international student needs to convert their grades to a US 4.0 scale. Map each course: 90%+ = A (4.0), 80-89% = B (3.0), etc. Enter the courses with their converted letter grades and credit hours to get a US-style GPA for applications.

Why Use GPA Calculator?

Standard 4.0 GPA scale with +/- grades
Dynamic course list (add/remove)
Real-time GPA calculation
Shows total credits and grade points

How to Use GPA Calculator — Step by Step

Add your courses with course name (optional).

Enter credit hours for each course.

Select the letter grade from the dropdown.

View your cumulative GPA instantly.

Who Is GPA Calculator Best For?

students
academic planning
scholarship applications
graduation tracking

Pro Tips for GPA Calculator

1An A+ also counts as 4.0 on most US scales (the same as A). Some schools weight A+ higher, but the standard 4.0 scale treats both as 4.0.
2Weighted GPA (used in some high schools) gives extra points for AP/IB courses. This calculator uses the unweighted 4.0 scale standard.
3When planning grades for a target GPA, be conservative. Actual grades often fall short of targets, so aim higher than the minimum needed.
4The GPA formula: GPA = sum(grade_points x credits) / sum(credits). Each failing grade (F = 0.0) has a significant negative impact that is hard to overcome.

GPA Calculator — Frequently Asked Questions

What is a 4.0 GPA scale?

On a 4.0 scale, A=4.0, B=3.0, C=2.0, D=1.0, F=0.0. Plus/minus grades add 0.3 (A-=3.7, B+=3.3). GPA = total grade points / total credits.

How is GPA calculated?

GPA = (sum of grade points x credits) / (sum of credits). For example, an A (4.0) in a 3-credit course and a B (3.0) in a 4-credit course = (4.0x3 + 3.0x4) / 7 = 3.43 GPA.

How accurate are the calculations?

All calculations use double-precision floating-point arithmetic following IEEE 754 standards. Financial calculations like loans and compound interest are verified against standard spreadsheet formulas.

Can I round results to a specific number of decimal places?

Results are typically displayed with up to 10 significant digits. You can mentally round to your desired precision for most practical use cases.

Is GPA Calculator really free to use?

Yes, GPA Calculator is completely free with no hidden charges, no usage limits, and no premium tiers. You can use it as often as you need without signing up or providing any personal information.

Ready to Use GPA Calculator?

Free online tool — works in your browser, no sign-up required. Start using it right now.

Try It Now