How to Calculate CGPA from Semester SGPA

Calculating your CGPA from semester SGPAs is a straightforward process once you understand the formula. This guide walks you through the exact steps.

The Formula

CGPA is calculated using this formula:

CGPA = Σ(SGPA × Credits) / Σ(Credits)

In simple terms: multiply each semester's SGPA by its total credits, add all those products together, then divide by the total number of credits across all semesters.

Step-by-Step Process

1. List your semesters — Write down each semester's SGPA and total credits.
2. Calculate weighted scores — Multiply each SGPA by its credits.
3. Sum the weighted scores — Add up all the semester products.
4. Sum the credits — Add up all the semester credits.
5. Divide — Divide the total weighted score by the total credits.

Detailed Example

Let's calculate CGPA for a student with four semesters:

• Semester 1: SGPA = 8.0, Credits = 20 → 8.0 × 20 = 160
• Semester 2: SGPA = 8.5, Credits = 22 → 8.5 × 22 = 187
• Semester 3: SGPA = 7.5, Credits = 21 → 7.5 × 21 = 157.5
• Semester 4: SGPA = 9.0, Credits = 20 → 9.0 × 20 = 180

Total weighted score = 160 + 187 + 157.5 + 180 = 684.5

Total credits = 20 + 22 + 21 + 20 = 83

CGPA = 684.5 / 83 ≈ 8.25

Common Mistakes to Avoid

• Don't simply average the SGPAs without considering credits
• Make sure you're using the correct credit values for each semester
• Include all semesters, even ones with lower grades

Using Our Calculator

Our CGPA Calculator does all of this automatically. Simply enter your semester SGPAs and credits, and it will calculate your CGPA instantly.