Free GPA Calculator

Supports 4.0 • 4.3 • 4.5 • 5.0 (weighted) • Percentage

Semester & Cumulative GPA
Weighted/AP/Honors Support
Multiple Grading Scales

GPA Calculator

Supports 4.0 • 4.3 • 4.5 • 5.0 (weighted) • Percentage

CourseCreditsGrade (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.

1

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

The calculator computes semester GPA (or average %) and, if provided, updates cumulative GPA using prior GPA and credits. It supports letter-based scales (4.0/4.3/4.5), weighted 5.0 with Honors/AP/IB adders capped at 5.0, and percentage-based averaging. You’ll also see an interpretation band matched to the chosen scale.

Example Calculations

Standard 4.0 Scale (Semester GPA)

Input Values

scale:4.0
courses:
Math
A4 credits
English
B+3 credits
Biology
B4 credits

Result

3.44

Semester GPA = (4.0×4 + 3.3×3 + 3.0×4) ÷ 11 = 3.44

Weighted 5.0 Scale with AP

Input Values

scale:5.0
courses:
AP Physics
A4 creditsap_ib
Honors Chem
A-3 creditshonors
History
B3 credits

Result

4.47

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

scale:100
currentPercentage:86
totalCredits:40
courses:
Algebra
92%4 credits
Art
88%2 credits

Result

86.67%

Weighted average: (92×4 + 88×2) ÷ 6 = 90.67 for the term; cumulative % recomputed versus prior if provided.

Frequently Asked Questions

Choose the Percentage scale and enter numeric grades (0–100). The calculator computes the weighted average percentage; no letter conversion is required.

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GPA Formulas & Weighting

Core formulas for GPA and cumulative GPA, plus weighted adjustments for advanced courses.

Formula

GPA ​=​ Σ ​(​Grade Points ​×​ Credits​)​ ​÷​ Σ Credits

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.