Calculator
Example Data Table
| Course | Grade | Base Points | Level | Boost | Credits | Weighted Points |
|---|---|---|---|---|---|---|
| AP Biology | A | 4.00 | AP | 0.50 | 1.00 | 4.50 |
| Honors Algebra | B+ | 3.30 | Honors | 0.25 | 1.00 | 3.55 |
| English | A- | 3.70 | Regular | 0.00 | 1.00 | 3.70 |
Formula Used
Base grade points come from the selected letter or percent grade.
Weighted course points = Base grade points + Course level boost.
Weighted quality points = Weighted course points × Course credits.
Weighted GPA = Total weighted quality points ÷ Total included credits.
Cumulative GPA = Previous weighted points plus current weighted points, divided by combined credits.
When the cap option is enabled, each course is limited to 4.5 points.
How to Use This Calculator
- Enter each course name.
- Add a letter grade or percentage grade.
- Enter the credit value for each course.
- Select the course level, such as regular, honors, AP, IB, or college.
- Use custom boost when your school has a different policy.
- Keep the 4.5 cap checked when your transcript uses that maximum.
- Add previous GPA and credits to estimate cumulative GPA.
- Press calculate, then export the result as CSV or PDF.
Understanding Weighted GPA on a 4.5 Scale
What the calculator measures
A weighted GPA gives extra value to harder courses. It rewards academic rigor. A regular A usually equals 4.0 points. An advanced course may add a boost. On this page, the highest course value can be capped at 4.5 points. That makes the result easier to compare with schools using this scale.
Why credits matter
Credits control how much each class affects the final GPA. A one credit class counts more than a half credit class. The calculator multiplies each weighted grade by its credits. Then it divides the total quality points by total credits. This method gives a fair average across mixed course loads.
Letter and percent entries
You can enter grades as letters or percentages. A percentage is converted into a letter range first. Then the matching base points are used. This helps when report cards show numbers, while transcripts use letters. Always check your school handbook if it has a special grade chart.
Course level boosts
Regular classes receive no extra boost. Honors courses can receive a smaller boost. AP, IB, and college courses often receive a larger boost. The custom option supports schools with unique rules. The cap option prevents any course from going above 4.5 points.
Planning better outcomes
This calculator is useful before registration and after grades arrive. You can test different courses. You can compare honors and regular paths. You can also estimate how one stronger grade may raise your average. The CSV file helps spreadsheet review. The PDF file is useful for advising notes.
Important note
Schools do not all use the same weighted system. Some use 5.0 scales. Some limit only AP courses. Some round final numbers differently. Treat this result as an estimate unless it matches your official grading policy.
FAQs
What is a 4.5 weighted GPA scale?
It is a grading scale where harder courses can earn more than 4.0 points. The highest capped course value is usually 4.5 points.
Can I enter percentage grades?
Yes. The calculator accepts percentages like 92 or