GPA Calculator: Calculate Your Grade Point Average
Weighted grade point average from your course grades and credit hours
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GPA scales vary by institution. Some schools use +/− grades, others use whole letters only. Honors and AP courses often use a 5.0 scale. Check your institution's official policy.
A GPA calculator computes the weighted average of your course grades, weighting each by the credit hours of that course. Each letter grade maps to a point value on a 4.0 scale; multiplying grade points by credit hours gives total quality points, which divided by total credits is your GPA.
This GPA calculator helps students, parents, and educators quickly determine a weighted grade point average based on course grades and credit hours. It uses the standard 4.0 scale, which is widely adopted by high schools, colleges, and universities across the United States. By inputting individual course grades and their corresponding credit values, users can accurately compute their current or cumulative GPA. This tool is essential for tracking academic progress, understanding the impact of each course on overall standing, and planning for future academic goals such as scholarships, graduate school applications, or maintaining satisfactory academic progress for financial aid.
What is a gpa?
Use this GPA calculator to compute your grade point average on the standard US 4.0 scale. Add each course with its letter grade and credit hours — we apply the conventional weighted-by-credits formula and show your cumulative GPA, total points, and total credits. Works for high school, college, and graduate programs. The 4.0 scale and credit-weighting method follow the convention published by the American Association of Collegiate Registrars and Admissions Officers. This tool helps students track academic performance, understand how individual grades impact their overall average, and plan for future academic goals like scholarships or graduate school applications. It's a quick way to project your GPA for the current semester or calculate your cumulative average across multiple terms.
The formula
- g_i — grade point value for course i (0.0 to 4.0)
- c_i — credit hours for course i
Source: Weighted Grade Point Average Formula (AACRAO Standard).
Worked examples
1Typical freshman semester
Four courses — an A in one 3-credit class, an A− in another, a B+ in a 4-credit, and a B in a 3-credit. Total grade points: 12.0 + 11.1 + 13.2 + 9.0 = 45.3. Total credits: 13. GPA: 3.48. A solid first-semester result — on the high end of typical for a STEM freshman.
2Recovery semester
All A's and one A− in a 13-credit semester. GPA: 3.93. A strong semester pulls cumulative GPA up slowly — if the previous semester was a 2.5 with the same credits, the cumulative only moves to about 3.2. GPA is harder to rescue than to preserve, which is why early semesters disproportionately matter.
3Challenging semester with a low grade
This semester includes an A-, a B+, a C+, and a C-. Total grade points: 11.1 + 9.9 + 9.2 + 5.1 = 35.3. Total credits: 13. GPA: 2.72. This GPA is still above 2.0, but indicates a need for improvement to stay competitive for many programs.
How to use this calculator
- Your courses
- Read the result. Use the worked examples below to sanity-check against a known scenario.
Common mistakes and edge cases
Forgetting that W (withdraw) and I (incomplete) usually don't count toward GPA. If you dropped a course mid-semester and received a W, leave it out entirely — don't enter 0 credits, remove the row.
Using unweighted GPA when your school reports weighted. High schools often add 0.5–1.0 to honors and AP grades. Entering AP grades on the unweighted 4.0 scale will under-report your weighted GPA by a quarter to half a point.
Averaging semester GPAs instead of recalculating from all courses. (3.0 + 3.5) / 2 is not your cumulative GPA unless the semesters had equal credits. Always sum grade points across all semesters, then divide by total credits.
Frequently asked questions
What counts as a good GPA?
How do I convert a percentage grade to GPA?
Does GPA matter for jobs?
What is the difference between weighted and unweighted GPA?
How do AP/IB courses affect GPA?
Can I calculate my GPA if my school uses a different scale (e.g., 5.0)?
What's the difference between semester GPA and cumulative GPA?
How do pass/fail courses affect GPA?
GPA glossary
How we built this calculator
Methodology
GPA is a weighted mean. Each course contributes its grade (converted to a 4.0-scale number) multiplied by its credit hours — a 3-credit A is worth three times the weight of a 1-credit A. Total grade points divided by total credits gives a number between 0.0 and 4.0 that represents your overall performance per credit hour.
This calculator was written by Numora education team and reviewed by Numora academic standards team before publication. Both names link to full bios with verifiable credentials.
Sources & references
Every numeric assumption traces to a primary source.
- American Association of Collegiate Registrars and Admissions Officers (AACRAO) - Grade Point Average Calculation GuidelinesINT
- College Board - Understanding Your GPAUSA
- National Center for Education Statistics (NCES) - Academic Progress and GradesUSA
- University of California System - Academic Policies on GradingUSA
- Council of Graduate Schools - Graduate Admissions and GPAUSA
- Numora Editorial Policy. numora.net/editorial-policy