CGPA Calculation in Bangladesh (National University & University System Guide with Formula & Example)

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What Is CGPA?

• CGPA means Cumulative Grade Point Average, the overall average of grade points across all completed subjects/terms.
• Most Bangladesh universities use a 4.00 scale.

National University (NU) Grading System

• 80+ = A+ (4.00), 75-79 = A (3.75), 70-74 = A- (3.50), 65-69 = B+ (3.25), 60-64 = B (3.00).
• 55-59 = B- (2.75), 50-54 = C+ (2.50), 45-49 = C (2.25), 40-44 = D (2.00), below 40 = F (0.00).

CGPA Formula for NU Honours (Credit Based)

• CGPA = Sum of (Grade Point × Credit) / Sum of Credits.
• This is a weighted average formula, so higher credit subjects impact final CGPA more.

CGPA Formula for NU Degree Pass

• CGPA = Total Grade Points / Total Number of Papers.
• This method uses equal weight per paper.

General University Formula

• Most public and private universities use: CGPA = Sum of (Grade Point × Credit Hours) / Total Credit Hours.
• Semester GPA is calculated similarly for each semester, and CGPA combines all semesters.

Step-by-Step Example (Weighted)

• Subject 1: 4 credits, GP 3.75 => 15.00
• Subject 2: 4 credits, GP 3.50 => 14.00
• Subject 3: 4 credits, GP 4.00 => 16.00
• Total points 45, total credits 12, CGPA = 45 / 12 = 3.75.

CGPA vs GPA

• GPA is typically for one semester/term.
• CGPA is the cumulative result across all semesters/years.

NU Classifications

• 3.50+ = First Class.
• 3.00-3.49 = Second Class.
• 2.50-2.99 = Third Class.

Common Mistakes in CGPA Calculation

• Ignoring credit hours in honours/credit-based systems.
• Using simple average where weighted formula is required.
• Mixing GPA and CGPA logic.
• Not including all subjects and cleared retake subjects properly.

Use Our Free CGPA/GPA Calculator

• Calculate instantly: https://www.fastcalculator.xyz/calculators/cgpa-calculator-bangladesh
• Add/remove subjects, add term/semester/year blocks, and calculate both GPA and CGPA in one screen.

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