GPA Calculator

Enter the grade and credit hours for each course — your semester GPA appears on the 4.0 scale. Add your previous CGPA to see your updated cumulative average too.

How GPA is calculated

Each letter grade carries points on the 4.0 scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, F = 0. Multiply each course's points by its credit hours, sum everything, and divide by total credit hours. A 3-credit A (12 points) plus a 2-credit B (6 points) = 18 points ÷ 5 credits = 3.60 GPA.

CGPA extends the same idea across semesters: (previous CGPA × previous credits + this semester's quality points) ÷ (previous + new credits). That's why early semesters move your CGPA a lot and later ones barely budge it — the credit base keeps growing.

GPA scales around the world

GPA is reported on different scales: the 4.0 scale (common in the US and many private universities), a 10-point CGPA (used by many Indian universities and CBSE), and straight percentage. This calculator uses the widely-accepted 4.0 scale. When applying abroad, universities often convert your local scale themselves, so submit your original transcript rather than guessing.

How to raise your GPA

Because GPA is credit-weighted, high-credit courses move it most — so protecting your grade in a 4-credit class matters more than in a 1-credit one. Early semesters set a base that later ones can only slowly shift, so strong early grades pay off. Retaking a failed course (where allowed) and prioritising heavy-credit subjects are the fastest levers.

Why credit hours matter more than grades

GPA is a weighted average, not a plain one, and this is where most people's mental estimate goes wrong. A grade in a 4-credit course counts four times as heavily as the same grade in a 1-credit course.

Take two students, both with one A (4.0) and one C (2.0). The first earned the A in a 4-credit course and the C in a 1-credit lab: (4×4.0 + 1×2.0) ÷ 5 = 3.60. The second had it the other way around: (1×4.0 + 4×2.0) ÷ 5 = 2.40. Identical grades, a full point apart. It follows that your effort is best spent on your heaviest courses — an improvement there moves your GPA far more than the same improvement in a 1-credit elective.

How much can your CGPA still move?

The more credits you have already banked, the harder your cumulative GPA is to shift — worth knowing before setting a target. Your new CGPA is (old GPA × old credits + new points) ÷ total credits.

A student with a 2.80 CGPA over 90 credits has 252 grade points. A perfect 4.0 semester of 15 credits adds 60, giving 312 ÷ 105 = 2.97. Even a flawless semester moves them less than two-tenths. Early semesters are the cheap ones to fix; later ones are expensive. If you are in your first year, this is the most useful thing on this page.

Weighted, unweighted and major GPA

Institutions quote several different GPAs and they are not interchangeable. Unweighted caps every course at 4.0 regardless of difficulty. Weighted gives honours or AP courses a higher ceiling — often 5.0 — so a weighted GPA above 4.0 is normal, not an error. Major GPA counts only courses in your field, and is often what graduate programmes and employers actually look at.

Some schools also let you retake a course and replace the original grade rather than average the two. If that policy exists, one early bad grade may be far less permanent than it looks — check before you write off a semester.

Frequently asked questions