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GPA Calculator for Multiple Grading Scales
This GPA calculator converts course grades and credit hours into a grade point average on common 4.0, 4.3, 4.5, weighted 5.0, or percentage scales. Schools define letter maps and weighting differently—match your transcript’s scale before relying on the number.
Limitation: This calculator supports multiple grading scales and optional weighting.
GPA Calculator
Supports 4.0 • 4.3 • 4.5 • 5.0 (weighted) • Percentage
| Course | Credits | Grade (Letter) | |
|---|---|---|---|
How to Use the GPA Calculator
Choose your grading scale, add courses with credits and grades (letter or %), and optionally include current cumulative GPA and completed credits to update your CGPA. For the 5.0 scale, you can apply Honors/AP/IB weighting; values cap at the scale maximum.
Select your grading scale (4.0, 4.3, 4.5, 5.0 weighted, or Percentage)
💡 Pro Tip
Use consistent credit values and confirm your school's weighting rules. Some cap A+ at the scale maximum even with weighting.
What the GPA Calculator Computes
GPA is the credit-weighted average of course grade points. This calculator computes semester GPA or average percentage and can update a cumulative result when prior GPA and completed credits are supplied. It supports 4.0, 4.3, 4.5, weighted 5.0, and percentage entry; school conversion and weighting policies may differ.
Example Calculations
Standard 4.0 Scale (Semester GPA)
Input Values
Result
Semester GPA = (4.0×4 + 3.3×3 + 3.0×4) ÷ 11 = 3.44
Weighted 5.0 Scale with AP
Input Values
Result
Points (capped at 5.0): AP A→5.0, Honors A-→4.2, B→3.0. GPA = (5.0×4 + 4.2×3 + 3.0×3) ÷ 10 = 4.47
Percentage Scale (Average % + Cumulative)
Input Values
Result
Weighted average: (92×4 + 88×2) ÷ 6 = 90.67 for the term; cumulative % recomputed versus prior if provided.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorGPA Formulas & Weighting
Core formulas for GPA and cumulative GPA, plus weighted adjustments for advanced courses.
Formula
Semester GPA
GPA = Σ (Grade Points × Credits) ÷ Σ Credits
Cumulative GPA
CGPA = (Prev GPA × Prev Credits + Current Points) ÷ (Prev Credits + Current Credits)
Weighted Adjustment (5.0)
Weighted Points = min(Base Points + Weight Bonus, 5.0)
Scientific Background
GPA systems vary across institutions. The 4.0 scale is common in the U.S., while some use 4.3/4.5, and weighted 5.0 recognizes rigor in AP/IB/Honors courses. Percentage systems calculate arithmetic means; some schools convert % to 4.x scales using policy tables.
Academic Disclaimer
Policies differ by school (rounding, A+ handling, weighting caps, grade forgiveness). This tool provides flexible estimates. For official calculations, consult your registrar.
Sources & review
GPA Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
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