CGPA Calculator — Credit-Weighted, Not a Plain Average

CGPA Calculator

Calculate your Cumulative Grade Point Average the correct credit-weighted way — not the plain average of SGPAs that many sites publish.

Your semesters

Enter each semester's SGPA and credits. Recalculates instantly.

Credit-weighted

Scale (for target solving)

Target CGPA

Remaining credits

Semester	SGPA	Credits	Count

Preloaded example is the UGC Guidelines' own: 6 semesters, 969.4 ÷ 144 = 6.73. Edit the semesters to match your program.

Semester breakdown

Semester	SGPA	Credits	SGPA × credits	Status

Target solver

Enter a target CGPA and remaining credits to see what average you need next.

How CGPA is calculated

CGPA is a credit-weighted average across all semesters. Multiply each semester's SGPA by that semester's credits, add those products, and divide by total credits.

CGPA = Σ (SGPA × Credits) ÷ Σ (Credits)

Equivalently: total credit points across all semesters divided by total credits. Both forms give the same answer, because SGPA × credits is that semester's credit points.

Why the plain average is wrong

Many sites teach CGPA as a plain average of SGPAs. That is correct only when every semester carries the same credits. Otherwise it is wrong — sometimes by a full point.

Counterexample. Semester 1: SGPA 9.0 on 10 credits. Semester 2: SGPA 5.0 on 30 credits. Plain average: (9.0 + 5.0) ÷ 2 = 7.00. Correct credit-weighted: (9.0×10 + 5.0×30) ÷ 40 = 240 ÷ 40 = 6.00. The plain average overstates CGPA by a full point, because it gives the light semester as much weight as the heavy one. This calculator shows the plain-average number alongside so you can see the difference.

Worked example (UGC's own)

Semesters: credits 20, 22, 25, 26, 26, 25; SGPAs 6.9, 7.8, 5.6, 6.0, 6.3, 8.0. Numerator: 138 + 171.6 + 140 + 156 + 163.8 + 200 = 969.4. Denominator: 144. CGPA = 969.4 ÷ 144 = 6.73.

What you need on remaining credits

Enter a target CGPA and your remaining credits above. The solver computes the exact average you need next: ((Target × Total) − (Current × Completed)) ÷ Remaining. If the required average is above the scale maximum, the target is impossible — and the solver tells you the max achievable CGPA instead.

Common mistakes

Averaging SGPAs without credits. The single most common CGPA error. Always weight by credits.
Mixing SGPA and CGPA. SGPA is one semester; CGPA is the whole program. A strong final semester lifts CGPA only in proportion to its credits.
Using the wrong scale. CGPA on the 10-point scale is not a US 4.0 GPA. There is no official conversion between them.
Treating percentage conversion as universal. Each institution defines its own CGPA→percentage formula. Use the CGPA to Percentage Calculator with your university's preset.

Full walkthrough: How to Calculate CGPA. One semester at a time: SGPA Calculator and How to Calculate SGPA.

CGPA Calculator FAQ

How do I calculate CGPA?

Multiply each semester's SGPA by that semester's credits, add those products, and divide by total credits: CGPA = Σ(SGPA × credits) / Σ(credits). It is the same as total credit points across all semesters divided by total credits.

Is CGPA the average of SGPAs?

Only if every semester carries the same credits. Otherwise the plain average is wrong. Example: SGPA 9.0 on 10 credits and SGPA 5.0 on 30 credits give a plain average of 7.00, but the correct credit-weighted CGPA is 6.00.

How do I combine semesters with different credits?

Weight each SGPA by its semester's credits before averaging. A 30-credit semester counts three times as much as a 10-credit semester. Enter each semester's SGPA and credits above — the calculator does the weighting.

What if I don't know my credits?

Check your grade card or transcript — credits are listed per course and per semester. If you truly cannot find them, the plain average of SGPAs is an approximation, not your CGPA; it is exact only when all semesters carry equal credits.

How do I raise my CGPA?

Your CGPA moves slowly once many credits are banked, because new grades are diluted. Use the target solver above: enter a target CGPA and remaining credits to see the exact average you need next.

What is a good CGPA?

It depends on your institution and goals. On the 10-point scale, 7.5+ is commonly treated as a strong CGPA and 8.5+ as excellent, but cutoffs for placements and admissions vary — check your institution's own criteria.