Sylhet International University Grading System 2026: GPA & CGPA Guide

Quick Answer: How SIU Grades Your Work

Sylhet International University (SIU), a private university at Shamimabad, Bagbari in Sylhet city, grades on the standard Bangladeshi 4.00 scale. An A+ is worth 4.00 grade points, an A is 3.75, an A- is 3.50, and the scale runs down through B+, B, B-, C+, C, and D at 2.00, with F at 0.00 for anything below 40 percent. A D is the lowest passing grade: it earns you the course credit. An F earns no credit and the course must be repeated. Your semester GPA is the credit-weighted average of your grade points for that semester, and your CGPA is the same weighted average stretched across every semester you have completed.

Three numbers from SIU’s own academic rules matter more than any other. First, 2.25 is the line for normal progress: SIU considers you to be making normal progress and in good standing when your CGPA for all work attempted is 2.25 or better. Second, 3.75 is the honors line: a degree with honors requires an overall CGPA of 3.75 or above. Third, 70 percent is the attendance line: you must attend at least 70 percent of the classes in every course to sit its final examination. If you remember only three numbers from this guide, remember 2.25, 3.75, and 70 percent.

One honest warning belongs right at the top. SIU publishes its grading rules on its syllabus page, but that page is loosely written, with a few garbled sentences and at least one genuine ambiguity: whether a failed course’s credits stay in your GPA divisor. This guide reproduces SIU’s official table exactly, works through the arithmetic step by step, and flags every point where SIU’s published text is unclear, so you know exactly what to confirm with your department or the Registrar before you act on it. Nothing in this guide is guessed. Where SIU has not published a rule, this guide says so.

Check Your SIU GPA With the Calculator

The fastest way to use this guide is to calculate as you read. Open the free GPA calculator on the CGPA Calculator Pro homepage, which runs on the same UGC 4.00 scale SIU uses. There is no separate SIU calculator page on this site, and this guide will not pretend otherwise: the homepage calculator is the tool, and it matches SIU’s grade points exactly, because SIU’s own table is the UGC scale.

Here is how to use it for an SIU semester. First, list every course you took that semester, exactly as it appears on your grade sheet. Second, enter each course’s credit hours. Most SIU theory courses carry 3 credits, while comprehensive viva courses carry 1 credit and the final-year BBA internship carries 4 credits, so check your syllabus rather than assuming every course is 3 credits. Third, pick the letter grade you earned in each course from the dropdown. The calculator multiplies each grade point by its credits, adds the results, and divides by your total credits. That final number is your semester GPA.

Two cautions will save you from the most common calculator mistakes. Do not enter your percentage marks and expect the calculator to convert them: convert each percentage to SIU’s letter grade first using the table below, because 79 percent is an A (3.75), not an A+ (4.00), and one band of difference changes your GPA. And do not leave a failed course out of the calculator unless your department has told you in writing that SIU excludes F grades from the GPA divisor. SIU’s syllabus page says F grades “will not be counted for GPA calculation,” but it also says a failed course must be repeated and stays on your transcript, and other Bangladeshi universities do count the 0.00. Worked Example 2 below works through both readings with numbers so you can see how much it matters, and you should confirm SIU’s actual practice with your department before trusting either version.

The Official SIU Grading Table

The table below is taken directly from SIU’s published academic rules on its syllabus page. It is the same scale the University Grants Commission of Bangladesh uses across private universities, which is why the homepage calculator matches it exactly. One detail worth noticing: SIU’s table has no C- grade. The scale jumps straight from C (2.25) to D (2.00). If you studied somewhere else before SIU and your old transcript shows a C-, do not carry that grade point over: under SIU’s table it has no equivalent, and your department will need to map it for you.

Notice how tight the bands are at the top. The difference between an A+ and an A is just the 80 percent boundary, and the difference between an A and an A- is the 75 percent boundary. A single mark can move you across a band, which is why SIU’s assessment split matters: for a typical theory course, seasonal class work (homework, assignments, attendance, quizzes) counts for 30 percent, the mid-semester examination counts for 20 percent, and the final examination counts for 50 percent. Your final percentage is the weighted sum of those three parts, not just your final exam score. A student who skips quizzes and assignments has already given away up to 30 percent of the course before the final exam begins.

For laboratory, field work, and design courses, SIU assesses differently: observation of the student at work in class, viva-voce during laboratory hours, and quizzes, with engineering design and drawing assessed through projects assigned through the semester. If you are in CSE, ECE, or another engineering program at SIU, do not assume the 30-20-50 split applies to your lab courses; check your course outline.

How SIU Calculates GPA and CGPA, Step by Step

SIU’s rule, in plain language, is this: for each course, multiply the grade point by the course’s credit hours. Add up all those products. Divide by the total credit hours. The result is your GPA for that set of courses. Applied to one semester, that is your semester GPA. Applied to every course you have ever completed at SIU, that is your CGPA.

Work through it in four steps every time. Step one: write down each course, its credits, and its letter grade. Step two: convert each letter grade to its grade point from the table above. Step three: multiply grade point by credits for each course, and add all the products into one total. Step four: divide that total by your total credits. Round to two decimal places, which is how SIU grade sheets and transcripts normally show GPA and CGPA. Note that SIU’s published rules do not state a rounding rule, so if your transcript shows a value one hundredth different from your own calculation, rounding is the first thing to check, not an error in your arithmetic.

The formula looks like this:

Semester GPA = (sum of grade point x credit hours for each course in the semester) / (total credit hours in the semester)

CGPA = (sum of grade point x credit hours for every course completed so far) / (total credit hours completed so far)

Credits are the weights. A 3-credit course counts three times as much as a 1-credit comprehensive viva, and a 4-credit internship counts four times as much. That single fact explains most GPA surprises: a bad grade in a heavy course hurts far more than a bad grade in a light one, and a great grade in a 1-credit viva cannot rescue a weak semester on its own.

Worked Example 1: A First Semester BBA Result

Take a first-year BBA student whose first semester matches SIU’s published BBA course list. The semester carries 15 credits: five 3-credit courses. Suppose the grades are as follows:

• English I: Oral and Written Communication Skills, 3 credits, grade A- (3.50). Product: 3.50 x 3 = 10.50.
• Bangladesh Studies, 3 credits, grade B (3.00). Product: 3.00 x 3 = 9.00.
• Financial Accounting I, 3 credits, grade A (3.75). Product: 3.75 x 3 = 11.25.
• Introduction to Business, 3 credits, grade B+ (3.25). Product: 3.25 x 3 = 9.75.
• Computer Application in Business, 3 credits, grade A+ (4.00). Product: 4.00 x 3 = 12.00.

Add the products: 10.50 + 9.00 + 11.25 + 9.75 + 12.00 = 52.50 total grade points. Add the credits: 3 + 3 + 3 + 3 + 3 = 15 credits. Divide: 52.50 / 15 = 3.50. This student’s semester GPA is 3.50, comfortably above SIU’s 2.25 normal-progress line and only 0.25 short of the 3.75 honors line. Notice that the A+ and the B cancel each other out in a sense: the student is not a 4.00 student because of one A+, and not a 3.00 student because of one B. The weighted average tells the fuller story.

Worked Example 2: A Semester With a Failed Course

Now consider a harder semester, six courses totalling 16 credits, where one course is failed. This example also shows why SIU’s F rule needs clarifying, because the two possible readings give very different GPAs.

• Business Communication, 3 credits, grade A+ (4.00). Product: 4.00 x 3 = 12.00.
• Principles of Microeconomics, 3 credits, grade C+ (2.50). Product: 2.50 x 3 = 7.50.
• Principles of Management, 3 credits, grade B- (2.75). Product: 2.75 x 3 = 8.25.
• Comprehensive Viva 1, 1 credit, grade A (3.75). Product: 3.75 x 1 = 3.75.
• Business Statistics I, 3 credits, grade D (2.00). Product: 2.00 x 3 = 6.00.
• Business Mathematics, 3 credits, grade F (0.00). Product: 0.00 x 3 = 0.00.

Add the products of the five passed courses: 12.00 + 7.50 + 8.25 + 3.75 + 6.00 = 37.50. Now the fork in the road. Reading A follows SIU’s syllabus sentence that F grades “will not be counted for GPA calculation”: divide 37.50 by the 13 credits of passed courses only, giving 37.50 / 13 = 2.8846, or 2.88. Reading B counts the failed course’s 0.00 in the divisor, as most universities do: divide 37.50 by all 16 credits, giving 37.50 / 16 = 2.3438, or 2.34.

The gap is 0.54 of a grade point, and it decides whether this student is above SIU’s 2.25 progress line under either reading (both 2.88 and 2.34 clear it, but only just under Reading B). Under either reading, the student must repeat Business Mathematics, earns no credit for it, and carries a backlog into the next semester. Do not guess which reading your department applies. Ask, in writing if you can, and keep the answer, because it changes every GPA you calculate from a semester containing an F. The worked examples in the rest of this guide count F as 0.00 in the divisor, which is the more conservative reading and the one that cannot flatter your result.

Worked Example 3: CGPA Across Two Semesters

CGPA is not the average of your semester GPAs. It is the credit-weighted average of everything, which matters whenever your semesters carry different credit loads. Take the student from Example 1, who finished semester one with 52.50 grade points over 15 credits (GPA 3.50). In semester two, following SIU’s BBA list, the student takes 19 credits: six 3-credit courses plus a 1-credit comprehensive viva.

• English II: Language Composition and Comprehension, 3 credits, grade B+ (3.25). Product: 3.25 x 3 = 9.75.
• Financial Accounting II, 3 credits, grade B- (2.75). Product: 2.75 x 3 = 8.25.
• Business Mathematics, 3 credits, grade A- (3.50). Product: 3.50 x 3 = 10.50.
• Principles of Banking, 3 credits, grade A (3.75). Product: 3.75 x 3 = 11.25.
• Introduction to Physical Science, 3 credits, grade B (3.00). Product: 3.00 x 3 = 9.00.
• Introduction to Biological Science, 3 credits, grade C+ (2.50). Product: 2.50 x 3 = 7.50.
• Comprehensive Viva 1, 1 credit, grade A+ (4.00). Product: 4.00 x 1 = 4.00.

Add semester two’s products: 9.75 + 8.25 + 10.50 + 11.25 + 9.00 + 7.50 + 4.00 = 60.25. Semester two’s GPA is 60.25 / 19 = 3.1711, or 3.17. Now the CGPA: total grade points 52.50 + 60.25 = 112.75, total credits 15 + 19 = 34. Divide: 112.75 / 34 = 3.3162, or 3.32. If you had wrongly averaged the two semester GPAs (3.50 + 3.17) / 2, you would get 3.335, or 3.34, which is close here but wrong in principle, and the error grows whenever semesters differ more in credits. Always recompute from total points and total credits.

That 3.32 also tells the student something useful about trajectory. After two semesters the student sits 0.43 below the 3.75 honors line. Honors is still reachable, but it will take sustained A and A- grades, not one good semester, because every past credit stays in the CGPA denominator.

Worked Example 4: Is Your Target CGPA Still Reachable?

One of the most practical uses of the CGPA formula is checking whether a target is still possible before you spend a semester chasing it. Suppose a student has completed 60 credits with a CGPA of 2.90. That means the student holds 60 x 2.90 = 174.00 grade points. The student now plans the next 15 credits and wonders whether a CGPA of 3.25 is reachable.

After 15 more credits the student will hold 75 credits in total. A CGPA of 3.25 over 75 credits requires 75 x 3.25 = 243.75 grade points. The student needs 243.75 – 174.00 = 69.75 more grade points from 15 credits, which is an average of 69.75 / 15 = 4.65 per credit. That is above the maximum 4.00, so the target is mathematically impossible next semester, no matter how well the student performs. Knowing this now is far better than discovering it after results day.

Now try a reachable target: a CGPA of 3.00 over the same 75 credits requires 75 x 3.00 = 225.00 grade points. The student needs 225.00 – 174.00 = 51.00 grade points from 15 credits, an average of 51.00 / 15 = 3.40 per credit. That means a mix of A- (3.50) and B+ (3.25) grades, with no grade below B+, would do it. This is the honest way to set semester goals: work backward from the target, and check the required average against the 4.00 ceiling before you commit to it.

GPA vs CGPA: The Difference That Confuses Everyone

Semester GPA covers one semester only. CGPA covers everything. A single strong semester lifts your GPA a lot and your CGPA only a little, because the CGPA denominator includes all your past credits. That is why final-year students sometimes feel their CGPA “barely moves” even after a 3.80 semester: if you already hold 100 credits, a 15-credit semester at 3.80 moves a 3.00 CGPA to only (300.00 + 57.00) / 115 = 3.10. The arithmetic is not broken. It is just weighted.

Another confusion is the SSC and HSC GPA, which is a different scale entirely. Admission GPA figures quoted for Bangladeshi universities (out of 5.00 per exam) describe your school results, not your university performance. SIU’s university GPA and CGPA are always out of 4.00. Never mix the two scales in one calculation, and never report your university CGPA “out of 5.00” on a CV or application: employers and foreign universities will read it against the 4.00 scale and misjudge you.

A related mix-up is percentage versus CGPA. There is no official SIU or UGC formula that converts a CGPA back into a percentage, and any website that multiplies your CGPA by 25 is inventing a conversion. If an application form asks for a percentage, report your CGPA as a CGPA out of 4.00 and attach your transcript, rather than converting it yourself.

Common Mistakes SIU Students Make

The plain-average trap is the biggest one. A student with four courses thinks: my grades are A+ (4.00), D (2.00), B (3.00), and C (2.25), so my GPA is (4.00 + 2.00 + 3.00 + 2.25) / 4 = 11.25 / 4 = 2.81. That is wrong unless every course carries the same credits. Suppose the A+ is a 1-credit viva, and the other three are 3-credit courses. The correct weighted calculation is: 4.00 x 1 = 4.00, 2.00 x 3 = 6.00, 3.00 x 3 = 9.00, 2.25 x 3 = 6.75. Total grade points 4.00 + 6.00 + 9.00 + 6.75 = 25.75 over 10 credits. GPA = 25.75 / 10 = 2.575, or 2.58. The plain average overstates the result by 0.23 because it gives the 1-credit viva the same weight as a full course. Always weight by credits.

The second mistake is rounding too early. If you round each course’s product to one decimal place before adding, small errors accumulate. Keep two decimals all the way through and round only the final GPA. The third mistake is using percentage bands from another university. SUST, North South, and BRAC do not all use SIU’s bands, and a 79 percent that is an A at SIU might be an A- elsewhere. Use SIU’s table, reproduced above, and nothing else. The fourth mistake is forgetting the 1-credit viva courses and the 4-credit internship when totalling credits. SIU’s BBA second semesters carry 19 credits precisely because of the viva, and the final semester carries 20 because of the internship and viva. Leave those out and your divisor is wrong. The fifth mistake is counting an incomplete (I) grade as zero. An I has no grade point and should not enter the calculation at all until the work is completed and a letter grade replaces it. Confirm the completion deadline with your department, because an unresolved incomplete can eventually convert to an F under many universities’ rules; SIU’s published page does not state its own deadline for clearing an I, so confirm this with your department handbook or the Registrar rather than assuming one.

Standing, Honors, Retakes, and the Rules Around Your GPA

SIU’s published rules tie your GPA to several concrete consequences. Understanding them now is better than learning them from a warning letter.

Good standing and normal progress. SIU treats a CGPA of 2.25 or better, across all work attempted, as normal progress and good standing. You fall below desirable progress if any of three things happens: your semester GPA drops below 2.25, your CGPA drops below 2.25, or your earned credits fall below 15 times the number of semesters you have studied. In plain terms, SIU expects you to earn roughly 15 credits per semester on average. A student who passes everything but takes too few courses can still fall behind on the credit count, so plan your semester load, not just your grades.

Honors. A degree with honors requires an overall CGPA of 3.75 or above. There is no separate honors percentage or viva requirement stated on SIU’s syllabus page. Note also a practical link to money: SIU’s BBA fee schedule gives a 25 percent tuition waiver to students who score 3.75 or above in both semesters of a year, so the honors line doubles as a scholarship line for BBA students. Confirm with your department whether the same waiver applies to your program, because the published fee table sits on the BBA and MBA syllabus page.

Passing a semester. SIU’s page states that a student is declared to have passed the semester examination when passing all courses of the semester with a minimum GPA of 2.00 in each course. Read carefully, because this 2.00 pass line is lower than the 2.25 progress line. Passing a semester and being in good standing are two different tests, and you can pass a semester while still slipping below the progress line if your CGPA is weak. If your department applies these two lines differently from how this guide reads them, your department’s reading wins: confirm with your department handbook or the Registrar.

Retakes, referred exams, and backlogs. A failed course must be repeated, and it earns no credit until passed. A backlog of more than 4 failed courses blocks registration for the next semester, so four backlogs is the hard ceiling. Referred examinations on failed courses normally run with the final examination of the upcoming semester and cover the entire syllabus, and failing a referred exam means appearing again in the semester final and passing before you can register higher. Final-year students get one extra route: a supplementary examination, held one month after the last results, covering at most 4 courses totalling 12 credit hours.

Improvement examinations. Students scoring less than 2.50 in any course may be allowed an improvement opportunity, either by retaking the course fresh or by appearing only in the final examination, on payment of fees set by the university. This sits in tension with another passage on the same page saying a student above F “will not be allowed to repeat the course for grade improvement.” The sensible reconciliation is that the improvement examination is a separate, fee-paid route distinct from ordinary re-registration, but SIU’s page does not say that explicitly. If you hold a C (2.25) or below and want to improve it, ask your department which route applies to you, what it costs, and whether the improved grade fully replaces the old one on your transcript.

Attendance. You need at least 70 percent attendance in every course to sit its final examination. Absence from the semester final examination itself results in an F. Attendance also feeds your seasonal marks, which are 30 percent of the course total, so poor attendance hurts twice: once in marks, and once at the 70 percent gate.

Short semesters. Between the two regular semesters, SIU may run a short semester of 7 weeks of intensive classes plus 1 week of examination. You may register for at most 2 courses, paying a per-credit-hour fee, and the short semester exists to make up credit or GPA deficiencies or to finish degree credits faster. If you carry backlogs, the short semester is usually the fastest lawful way to clear them, but it cannot carry more than two courses, so plan around that cap.

Degree credits. SIU requires between 120 and 165 total credit hours for graduation depending on discipline, decided by the Academic Council per school. A 2-year master’s program requires around 70 credits. For the BBA, SIU’s own semester plan totals 137 credits (15 + 19 + 15 + 19 + 15 + 19 + 15 + 20). Check your own program’s syllabus page for its total rather than assuming the BBA figure applies to you.

What SIU has not published (as of this writing). No Dean’s List rule, no probation ladder beyond the 2.25 progress rule, no CGPA rounding rule, no grade-appeal procedure, and no current admission GPA threshold appear on SIU’s syllabus or BBA pages. An older comparative study reported that SIU required a minimum of 2.5 in both SSC and HSC for admission, but that is a dated secondary source, not SIU’s current admission page, so treat it as background only and confirm current admission requirements with SIU’s admissions office. Similarly, the contact details sometimes listed for SIU (Shamimabad, Bagbari, Sylhet 3100; phone 0821-720771 and 717193; email info@siu.edu.bd) come from directories, not from siu.edu.bd itself, so verify them before relying on them for anything urgent.

Tips to Protect and Raise Your SIU CGPA

• Guard the 70 percent attendance gate first. No grade strategy matters if you are barred from the final exam.
• Win the 30 percent seasonal marks. Homework, assignments, quizzes, and attendance are the most controllable part of your grade, and they are worth nearly a third of every theory course.
• Weight your effort by credits. An extra hour spent on a 3-credit course moves your GPA three times as much as an extra hour on a 1-credit viva.
• Use the short semester deliberately. With a 2-course cap, clear the backlog course that blocks your next registration first, not the easiest one.
• Check the 2.25 line every semester, not just at graduation. Falling below it in one semester is recoverable; drifting below it for three semesters is how students lose good standing.
• If you score below 2.50 in a course, ask about the improvement examination immediately, while the next exam cycle is still open, rather than discovering the option a year later.
• Recompute your GPA from the transcript every semester using the formula in this guide. If your figure differs from the university’s by more than a rounding difference, ask your department to walk through the calculation with you.

Frequently Asked Questions

What is the lowest passing grade at SIU? D, worth 2.00 grade points, for marks from 40 percent to less than 45 percent. A D earns the course credit. Anything below 40 percent is an F, earns no credit, and must be repeated.

What CGPA do I need to graduate from SIU with honors? An overall CGPA of 3.75 or above, according to SIU’s published academic rules. There is no separate honors exam mentioned on the syllabus page.

What happens if my CGPA falls below 2.25? SIU considers you below desirable progress. You can make up the deficiency by completing courses in the next semester or semesters and clearing backlog courses. The published rules do not describe a formal probation ladder, so ask your department what warning or advising process applies to you.

Can I retake a course I passed to improve my grade? Possibly, through the improvement examination route, which SIU offers to students scoring less than 2.50 in a course, either by retaking the course or by appearing only in the final examination for a fee. But another passage on SIU’s page says students above F may not repeat a course for grade improvement, so confirm with your department which route applies, what it costs, and whether the new grade replaces the old one.

Does an F count in my GPA at SIU? SIU’s syllabus page says F grades “will not be counted for GPA calculation” while also requiring the course to be repeated and keeping the F on your transcript. Other universities count the 0.00. The two readings differ by more than half a grade point in the worked example in this guide, so confirm your department’s actual practice before you calculate.

How many credits do I need to graduate from SIU? Between 120 and 165 credits depending on your discipline, with 2-year master’s programs around 70 credits. The BBA totals 137 credits on SIU’s own semester plan. Your program’s syllabus page gives your exact total.

How is SIU different from SUST or the other Sylhet universities? SIU is a private university, separate from Shahjalal University of Science and Technology (SUST), North East University Bangladesh, Leading University, and Metropolitan University, each of which has its own grading rules and guides. If you are comparing Sylhet universities, read the NEUB grading guide, the Leading University grading guide, and the Metropolitan University grading guide, and do not carry one university’s rules into another’s calculation. For a private-university comparison outside Sylhet, see the Fareast International University grading guide.

Final Word

SIU’s grading system rewards steady, credit-weighted performance and punishes the two things students most often neglect: attendance and backlog management. The scale itself is simple and national, which is good news, because it means every tool and table built for the UGC 4.00 scale works for SIU. The complications live in the rules around the scale: the 2.25 progress line, the 3.75 honors line, the 70 percent attendance gate, the four-backlog registration block, and the genuinely ambiguous treatment of failed courses in the GPA divisor. Learn those five, calculate your GPA from your transcript every semester with the formula in this guide, and confirm the two flagged ambiguities, the F rule and the improvement route, with your department before they matter. That is the whole system, and now you can run it yourself.

Sources: SIU’s official syllabus and academic rules page at siu.edu.bd/academic/syllabus and the BBA and MBA syllabus at siu.edu.bd/syllabus/bba-mba. Institutional background from the university’s published profiles and directories; admission GPA history from a dated comparative study, flagged as unconfirmed in the text.