Calculator Inputs
Choose a conversion method, enter your academic data, and customize the policy settings.
Formula Used
Direct Scale Conversion
Converted GPA = (Current GPA ÷ Current Scale) × 4
This proportional formula is useful for an estimate when no official conversion table is available.
Credit-Weighted GPA
GPA = Total Quality Points ÷ Total GPA Credits
Quality points equal grade points multiplied by course credits. Weighted GPA adds the selected course-level bonus before multiplying by credits.
Cumulative GPA
New Cumulative GPA = (Previous GPA × Previous Credits + New Quality Points) ÷ Combined Credits
Required Future GPA
Required GPA = [Target GPA × (Current Credits + Future Credits) − Current Quality Points] ÷ Future Credits
How to Use This Calculator
- Select course-by-course, direct scale, percentage, or letter-grade conversion.
- Enter grades and course credits. Choose advanced course levels when relevant.
- Review repeated-course, pass/fail, withdrawal, and incomplete policies.
- Customize the grading table when your institution uses different ranges.
- Select decimal precision and the preferred rounding method.
- Calculate the result, compare scales, save history, print, or export the course breakdown.
Understanding GPA Conversion
Why GPA Conversions Differ
A grade point average is not a universal measurement. Schools may assign different points to A+, A, and A− grades. Some institutions cap every A at 4.0, while others use 4.3 or 4.33. International programs may report marks on 5, 7, 10, 20, or 100-point systems. Because these systems were designed independently, a perfectly exact conversion is often impossible without the receiving institution’s own policy.
Proportional Conversion Versus Grade Mapping
Proportional conversion treats the source scale as a straight mathematical range. An 8.0 on a 10.0 scale becomes 3.2 on a 4.0 scale. This method is simple and transparent, but it may not reflect grade distribution, academic difficulty, or local passing standards. Grade mapping instead assigns a 4.0 value to a percentage range or letter grade. This approach is often closer to classroom grading, especially when credits are included.
Weighted and Unweighted Results
An unweighted GPA normally caps each course at 4.0. A weighted GPA rewards difficult courses by adding bonus points. Honors courses often receive a smaller bonus than Advanced Placement, International Baccalaureate, or dual-enrollment courses. Weighting policies vary widely, so this calculator allows custom bonus values and a configurable maximum weighted scale.
Credits and Quality Points
Courses with more credits affect GPA more strongly. A four-credit science course therefore carries more influence than a one-credit elective. The calculator multiplies each course’s grade points by its credits to obtain quality points. Total quality points are then divided by total GPA credits. Courses with zero credits remain visible but do not change the average.
Repeated Courses and Special Grades
Some schools replace the original grade after a course is repeated. Others count every attempt or average them. Withdrawals, incompletes, and pass/fail courses may be excluded from GPA, even when they appear on a transcript. The policy controls in this tool make these assumptions visible and editable.
Using Results Responsibly
Use this calculator for planning, comparison, and personal estimates. For admissions, scholarships, licensing, or credential evaluation, confirm the official method required by the organization receiving your records. A formal evaluator may consider the institution, country, course level, transcript notes, and grading distribution rather than applying one universal formula.
Frequently Asked Questions
Is a 10.0 CGPA always divided by 2.5?
No. Dividing by 2.5 is a proportional shortcut because 10 ÷ 2.5 equals 4. Official evaluators may use a different table.
Can a weighted GPA exceed 4.0?
Yes. Many schools add bonus points for advanced courses. The maximum depends on the institution’s weighting policy.
Should pass/fail courses count?
Usually they do not affect GPA, although they may count toward earned credits. Use the policy settings to match your school.
Why does my official GPA differ?
Your school may use different grade ranges, repeat rules, rounding methods, credit values, or exclusions. Update the custom settings to match those rules.
Can I use this for graduate admissions?
You can use it for an estimate. The university or credential evaluator remains the authoritative source for official conversion.