CGPA Calculator

Your CGPA is the single number that follows you through every semester — so it pays to understand exactly how it moves. This calculator lets you model your whole degree: add each semester, list its courses with credit hours and letter grades, and watch the semester GPA (SGPA) and cumulative CGPA update as you type. It is built for planning as much as for checking: try a scenario before results come out, or enter historic semesters to see where you stand today.

The formulas behind the calculator

Grade points come from the letter you earned — for example A = 4.00 or B+ = 3.33 on a common 4.0 scale. Because scales differ between universities, every grade point in this tool is editable. If your university prints a different value on its own scale, change it once and every calculation follows.

A worked example

Suppose you take three courses: a 3-credit course with an A (4.00), a 3-credit course with a B− (2.67) and a 4-credit course with a C+ (2.33). The quality points are 3 × 4.00 = 12.00, 3 × 2.67 = 8.01 and 4 × 2.33 = 9.32 — 29.33 in total over 10 credit hours. Divide 29.33 by 10 and the SGPA is 2.93. Add another semester and the calculator simply combines the two sets of quality points before dividing — that is the entire secret of a cumulative GPA.

How to use it for planning

• Enter credits exactly as your transcript does. A 3-credit course counts three times more than a 1-credit lab.
• Use the Repeat tick for repeated courses. Add both attempts, tick the older one and it stops dragging your CGPA in the maths — matching the common “latest attempt only” rule.
• Fold in past records. Studied elsewhere or not re-entering older semesters? Enter your previous CGPA and credits once and the tool combines them with what you type.
• Keep the scale honest. If your university awards 3.70 for an A− or 2.70 for a B−, set it in the scale editor so the result matches your official one.

What the number can — and cannot — tell you

This calculator gives you a mathematically accurate CGPA for the inputs you provide. What it cannot know is your university’s specific rules: how repeats, withdrawals, transfers or rounding are treated is defined by your institution, not by arithmetic. Use the result to plan and to sanity-check your understanding — your university’s own records remain the final authority.