Pabna University of Science and Technology Grading System 2026: GPA & CGPA Guide

Quick answer: the PUST grading system in one minute

Pabna University of Science and Technology (PUST) grades on the standard Bangladesh 4.00 scale. An A+ is worth 4.00 grade points and is awarded for 80 percent and above. An F is worth 0.00 and is awarded for less than 40 percent. Between those two ends sit eight more letter grades, each with its own grade point, and your GPA is the credit-weighted average of those grade points – not a simple average of your marks, and not a simple average of your grade points either.

The second number every PUST student needs to know is 2.20. Under the university’s Faculty of Engineering and Technology ordinance, as published in the Department of Computer Science and Engineering syllabus for session 2017-2018, a student needs a CGPA of not less than 2.20 to earn a bachelor’s degree. The same 2.20 line triggers academic probation: if your term GPA falls below 2.20, or your cumulative GPA falls below 2.20, you may be placed on probation. That is the whole system in a nutshell, and the rest of this guide works through it properly, with the official table, the formulas, and worked examples you can check against your own result sheet.

One honest caveat up front: the detailed rules quoted here come from PUST’s published engineering faculty syllabus, which is the fullest primary source available online. PUST’s departments have some autonomy in their own guidelines, and individual department handbooks can differ in small ways. Where a rule below comes from that syllabus, this guide says so. Where a rule could not be verified from a primary source, it is marked UNVERIFIED and you should confirm it with your department before acting on it.

Check your PUST GPA with the calculator

The fastest way to use this guide is to calculate as you read. Open the CGPAPro homepage calculator, pick the UGC 4.00 grade scale, and enter each of your courses with its credit and its letter grade. The calculator does the credit weighting for you, which matters more than most students realise: a 3-credit theory course moves your GPA twice as much as a 1.5-credit sessional course, and a 0.75-credit viva moves it far less than either.

To check a single term, enter only that term’s courses. To check your CGPA, enter every course you have completed so far, across all terms. If you are working from a result sheet that shows marks rather than grades, convert each mark to its letter grade using the official table below first, then enter the grade points. Do not type your percentage marks straight into a GPA calculator and expect a correct answer – the two scales are different things, and mixing them up is one of the most common calculation errors.

The official PUST grading table

The table below is taken from section 9.1 of the PUST Faculty of Engineering and Technology syllabus (Department of Computer Science and Engineering, session 2017-2018). It is identical to the UGC uniform grading scale used across Bangladesh, which is why the CGPAPro calculator’s UGC scale matches it exactly.

Two boundaries in this table cause more confusion than all the rest. First, a mark of exactly 80 percent is an A+, not an A, because the A+ band starts at 80 percent and above. Second, a mark of exactly 40 percent is a D, not an F, because the F band is strictly less than 40 percent. If your mark sits exactly on a boundary, the higher band applies. A mark of 79.5 percent, on the other hand, is an A, because it is less than 80 percent – PUST does not round your percentage up into the next band before grading.

Note also what the D grade means. A D is a pass, even though the interpretation column calls it “Poor”. Under the syllabus, courses in which a student has earned a D or a higher grade count as credits earned. Only an F fails to earn credit. That distinction matters for the F-grade discussion later in this guide, because a D keeps you moving forward while an F stops you in that course until you repeat it.

How your marks are built up before grading

Your letter grade comes from your total mark out of 100 in each course, and that total is itself made of parts. For a theory course at PUST, the published split is 10 percent class participation, 20 percent class tests, assignments and quizzes, and 70 percent term final examination. For a laboratory or sessional course, the split is 10 percent class participation, 30 percent lab test, lab performance and lab report, and 60 percent final lab examination.

Attendance feeds into the class participation mark through a published table. Attendance of 90 percent and above earns the full 10 out of 10. Attendance of 85 to 89 percent earns 9 out of 10, 80 to 84 percent earns 8, 75 to 79 percent earns 7, 70 to 74 percent earns 6, 65 to 69 percent earns 5, 60 to 64 percent earns 4, and attendance below 60 percent earns 0 out of 10 for that component. The practical lesson is blunt: attendance below 60 percent does not just cost you a mark or two, it wipes out the whole participation component, which is a tenth of the course before you even sit the final.

What the published syllabus does not state clearly is a minimum attendance percentage required to sit the final examination at all. UNVERIFIED: whether PUST bars students below a set attendance level from appearing in the term final, and what that level is, could not be confirmed from a primary source. If your attendance is low, ask your course teacher or department office directly rather than assuming the participation table is the only consequence.

How PUST calculates GPA and CGPA: the formula

Section 9.2 of the syllabus defines GPA as the weighted average of the grade points obtained in all the courses passed or completed by a student in a term. In plain language:

Term GPA = (sum of credit x grade point for each course) divided by (total credits of those courses).

CGPA works exactly the same way, except that the sum runs over every course you have completed across all terms, not just one term. That is the whole formula, and it has one consequence students keep tripping over: CGPA is not the average of your term GPAs. If your first term carried 19.50 credits and your second carried 22.50 credits, the second term counts more in your CGPA, because it carries more credits. Averaging 3.20 and 3.60 as (3.20 + 3.60) / 2 = 3.40 only gives the right answer when both terms carry exactly the same credits. When they do not, you must go back to total grade points divided by total credits.

Step by step, for one term:

1. List every course you completed in the term, with its credit value.
2. Convert each course mark to its letter grade using the official table, then to its grade point.
3. Multiply each course credit by its grade point. That product is the course’s grade points earned.
4. Add up all the grade points earned.
5. Add up all the credits.
6. Divide total grade points earned by total credits. Round to two decimal places, half-up.

For CGPA, repeat the same steps over all completed terms together, or equivalently add up each term’s total grade points earned and each term’s total credits, then divide. Rounding: this guide rounds to two decimal places, half-up, which is the convention most result sheets follow. A value of 3.695 becomes 3.70, not 3.69. Your department’s printed result is the final authority if it ever differs by a hundredth from your own calculation, since small differences in how a department handles fractional credits can shift the last decimal.

Worked example 1: one term GPA of exactly 3.50

Suppose a first-year PUST student completes five 3-credit theory courses in a term with these results: A+ (4.00), A (3.75), A- (3.50), B+ (3.25) and B (3.00). Working course by course:

Term GPA = 52.50 / 15 = 3.50. Notice that every course carries the same credit here, so the plain average of the five grade points happens to give the same answer, (4.00 + 3.75 + 3.50 + 3.25 + 3.00) / 5 = 3.50. That coincidence is exactly why the plain-average habit survives: it works whenever all your courses carry equal credit, and quietly fails whenever they do not. The next example shows the failure, and it is the failure that costs students real CGPA points when they estimate by hand.

Worked example 2: CGPA across two terms

Take a CSE student whose first two terms match the published CSE credit loads. In Year-1, Term-1 the student carries 19.50 credits and earns a term GPA of 3.20. In Year-1, Term-2 the student again carries 19.50 credits and earns a term GPA of 3.60. To find the CGPA, convert each term GPA back into total grade points:

• Term 1: 19.50 x 3.20 = 62.40 grade points.
• Term 2: 19.50 x 3.60 = 70.20 grade points.
• Total: 62.40 + 70.20 = 132.60 grade points over 19.50 + 19.50 = 39.00 credits.
• CGPA = 132.60 / 39.00 = 3.40.

Here the two terms carry equal credits, so the average of the two term GPAs also gives 3.40. Now change the second term to the heavier Year-3, Term-1 load of 21.00 credits at the same 3.60, keeping Term 1 at 19.50 credits and 3.20. The totals become 62.40 + (21.00 x 3.60 = 75.60) = 138.00 grade points over 40.50 credits, and CGPA = 138.00 / 40.50 = 3.41 (rounded to two decimals). The plain average of 3.20 and 3.60 would still say 3.40, which is now wrong by a hundredth – and in the other direction, a heavy weak term drags you down further than a plain average suggests. The rule is simple: never average GPAs. Always go back to total points over total credits.

Worked example 3: the F grade, done the PUST way

This is the example that matters most, because PUST handles the F grade differently from what most Bangladeshi students expect. At many universities, an F counts as 0.00 grade points in the denominator and drags the GPA down hard. Section 7.1 of the PUST syllabus says something different: a course in which a student has obtained an F “will not be counted towards his/her earned credits or GPA calculation”, although the F remains permanently on the grade sheet and transcript. Read that carefully, because it cuts both ways.

Suppose a student takes four 3-credit courses in a term and gets B- (2.75), C+ (2.50), C (2.25) and F. The correct PUST calculation, following section 7.1, excludes the failed course entirely:

• Passed courses: (3 x 2.75) + (3 x 2.50) + (3 x 2.25) = 8.25 + 7.50 + 6.75 = 22.50 grade points over 9 credits.
• Term GPA = 22.50 / 9 = 2.50.

The wrong calculation, the one most students do by habit, counts the F as zero points over its 3 credits: 22.50 / 12 = 1.88 (rounded to two decimals). That wrong answer is below the 2.20 probation line and would panic any student who believed it. The correct answer, 2.50, is above the line. The F still hurts badly – the student has earned only 9 credits instead of 12, the F sits permanently on the transcript, and a failed core course must be repeated – but under this syllabus it does not enter the GPA arithmetic itself.

Now the repeat. Under section 7.1, a student who gets an F in a core course must repeat that course, and a student who repeats a course in which they previously obtained an F will not be eligible to get a grade better than B in the repeated course. If our student repeats the failed course and earns a B (3.00), the picture becomes:

• Total grade points: 22.50 + (3 x 3.00) = 22.50 + 9.00 = 31.50 over 12 credits.
• Revised GPA for those courses: 31.50 / 12 = 2.63 (2.625 rounded half-up to two decimals).

Two warnings belong here. First, this F rule comes from the engineering faculty syllabus for session 2017-2018. If your department follows a newer or different ordinance, its F rule may differ, so check your own department handbook before relying on the exclusion – especially if a result sheet you received seems to include the F in the denominator. Second, the B cap on repeats is real and it limits recovery: no matter how well you perform in the repeated course, the recorded grade cannot exceed B under this syllabus. Plan your repeat accordingly, and do not count on an A in a repeated course to rescue your CGPA.

Improvement: repeating a course you passed

PUST also allows repeating a passed course for grade improvement, but with tight limits that students often overestimate. Under section 6.9 of the syllabus, a student who obtains a grade lower than B in a particular course may repeat that course only once for grade improvement, forgoing the earlier grade, and will not be eligible to get a grade better than B for the improvement course. A student may repeat for improvement a maximum of four courses across the whole B.Sc. Engineering programme, and a student who already has a B or better in a course may not repeat it for improvement at all.

The strategy that follows from those limits is straightforward. Spend your four improvement slots on your lowest grades in your highest-credit courses, because that is where a replacement grade moves the CGPA most. Do not waste a slot improving a C+ in a 1.5-credit sessional when a C in a 3-credit theory course is available. And remember the B cap: improving a C (2.25) to a B (3.00) in a 3-credit course gains you (3.00 – 2.25) x 3 = 2.25 grade points, which is worth real CGPA, but it will never turn that course into an A. UNVERIFIED: the fee charged for an improvement or repeat registration could not be confirmed from a primary source – the syllabus mentions fees for short-term courses and a Tk. 500 late registration fee, but states no per-course improvement fee. Confirm the current fee with the Registrar’s Office before registering.

GPA vs CGPA: what each number actually means

GPA, at PUST usually called term GPA, describes one term only. CGPA describes your whole degree so far. Employers, scholarship committees and postgraduate admission offices almost always ask for CGPA, because it is the number that summarises four years. Your term GPA is still the number that controls probation, because probation can be triggered by a single bad term even when your CGPA is healthy.

Students also confuse these university numbers with their SSC and HSC GPAs. Those board results run on a 5.00 scale, not the 4.00 scale, and they include a fourth-subject bonus rule that has no equivalent at university. A 5.00 at HSC and a 4.00 at PUST are not the same achievement measured on different scales – they are different systems entirely, and no conversion between them is needed or meaningful once you are at university. If a form asks for your university CGPA, give the 4.00-scale number from your PUST result sheet, never a converted board GPA.

A related question is what CGPA counts as “good”. UNVERIFIED: PUST does not publish, in the sources consulted for this guide, a Dean’s List threshold or a class/division band table (such as what CGPA counts as First Class), so this guide does not invent one. As a rough orientation only, a CGPA of 3.50 and above is widely treated by employers and scholarship programmes in Bangladesh as strong, 3.00 to 3.49 as solid, and anything below the 2.20 degree floor as not qualifying for the degree at all – but those are market conventions, not PUST rules, and they should not be quoted as university policy.

Probation and the 2.20 degree floor

The 2.20 rule appears twice in the syllabus, and the two appearances do different work. Section 7.2 says undergraduate students are making normal progress toward a degree if their CGPA for all work attempted is not less than 2.20, and that a student may be placed on academic probation when either the term GPA falls below 2.20 or the cumulative GPA falls below 2.20. Section 7.3 then sets the degree requirement itself: at least 157 credit hours for engineering must be earned, including the specified core courses, and the minimum GPA requirement for obtaining a bachelor’s degree in engineering and architecture is 2.20.

For the CSE programme specifically, the published course distribution totals 165 credits across eight terms, from 19.50 credits in each first-year term up to 22.50 credits in the final term. The 157-credit minimum is the floor set by the faculty ordinance; the 165-credit total is what the CSE curriculum actually requires. A student must also complete the programme within a maximum of seven academic years, and may take up to 15 additional credits beyond the degree requirement, with adviser consent, in order to raise GPA.

What probation means in practice is a warning, not an expulsion. The syllabus describes its objective as reminding or warning the student that satisfactory progress toward graduation is not being made. UNVERIFIED: the syllabus extract consulted does not spell out the full suspension procedure, how many consecutive probationary terms trigger suspension, or any credit limit imposed while on probation, so students who receive a probation notice should read the notice itself and speak to their course adviser immediately rather than relying on rumours about automatic dismissal. The practical response to probation is the same regardless of the procedure: raise the next term’s GPA above 2.20, prioritise high-credit courses, and use improvement repeats only where they genuinely move the CGPA.

One more worked calculation is useful here, because probation recovery is the question students actually ask. Suppose a student has completed 39.00 credits with a CGPA of 3.40, meaning 132.60 grade points banked, and wants to reach a CGPA of 3.50 by the end of a next term carrying 20.00 credits. The target total is (39.00 + 20.00) x 3.50 = 59.00 x 3.50 = 206.50 grade points. The student still needs 206.50 – 132.60 = 73.90 grade points from the next term, which means an average of 73.90 / 20.00 = 3.70 (3.695 rounded to two decimals) across that term. That is the honest size of the task: lifting a CGPA from 3.40 to 3.50 in one 20-credit term needs a term GPA around 3.70, roughly A- average or better. Use the same arithmetic on your own numbers before setting a target, and use the CGPAPro homepage calculator to test combinations of grades until the target comes out right.

Common mistakes that cost PUST students CGPA points

The F-denominator trap. This is the mistake worked example 3 exists to kill. Most Bangladeshi CGPA advice online assumes an F counts as 0.00 in the denominator, because that is how many universities do it. Under the PUST engineering syllabus, an F is excluded from the GPA calculation while remaining on your transcript and blocking earned credit. Applying the generic rule to a PUST result sheet gives you a GPA that is wrong – in the example above, 1.88 instead of 2.50 – and can make you believe you are on probation when you are not, or make you misjudge how much a repeat will help. Always check the rule against your own department’s handbook, but never assume the generic rule applies at PUST.

The plain-average trap. Averaging letter grade points, or averaging term GPAs, ignores credit weights. The trap is invisible when credits are equal and wrong whenever they are not. PUST terms carry uneven loads – 19.50, 20.25, 21.00, 22.00, 22.50 credits in the CSE curriculum – so term GPAs must never be averaged directly. The worked example with a heavy 21-credit term showed the error: 3.40 by plain averaging against a true 3.41. Small in that example, larger when a heavy term is also a weak term, and exactly the kind of error that makes a student think they are safe when they are a hundredth below a scholarship cut-off.

The percentage trap. A percentage mark is not a grade point, and no fixed formula converts one into the other across the whole scale. Students sometimes divide their percentage by 20 or by 25 to estimate a GPA, which gives a rough number that happens to land near the truth at the top of the scale and drifts badly lower down. Convert each mark to its letter grade first, then to its grade point, then weight by credit. That is the only route that reproduces what the result sheet shows.

The sessional trap. Lab and sessional courses carry 1.5 or 0.75 credits, so students treat them as unimportant. They are not unimportant, they are just smaller: a 1.5-credit sessional at C (2.25) still contributes 3.375 grade points, and a 0.75-credit viva at A+ contributes 3.00. More importantly, sessional marks are often the easiest marks to raise, because lab performance and lab reports reward steady work rather than one high-pressure final. Neglecting sessionals while chasing theory grades is leaving the cheapest grade points on the table.

The boundary trap. Marks of 79, 74, 69, 64, 59, 54, 49 and 44 sit one mark below a grade boundary. One extra mark in the final, or one recovered mark in a class test, moves the whole course up a grade band, which in a 3-credit course is worth 0.25 grade points x 3 credits = 0.75 grade points. If you are rechecking a script or asking about a borderline mark, these are the marks where it is worth the effort.

PUST Pabna and similarly named institutions: do not mix them up

Bangladesh has several science and technology universities with similar names, and their grading rules are not interchangeable. This guide is about Pabna University of Science and Technology, located at Rajapur in Pabna, whose official website is pust.ac.bd and whose engineering faculty syllabus is the source quoted throughout. It is not about Shahjalal University of Science and Technology in Sylhet, Jashore University of Science and Technology, Hajee Mohammad Danesh Science and Technology University in Dinajpur, Noakhali Science and Technology University, or Mawlana Bhashani Science and Technology University in Tangail. It is also not about Pundra University of Science and Technology, a separate private university in Bogura. Each of those institutions has its own ordinance, and a grading table or probation rule borrowed from one of them will mislead a PUST student.

The confusion is understandable, because all of them use a version of the UGC 4.00 scale and the tables look nearly identical at a glance. The differences hide in the rules around the table: the degree floor, the probation trigger, the F-grade treatment and the repeat caps. At PUST those are 2.20, 2.20, F excluded from GPA calculation under the engineering syllabus, and a B cap on repeats. If a senior or a website quotes you different numbers, ask which university’s ordinance they are quoting before you believe it.

For comparison, students often find it useful to see how neighbouring institutions frame the same questions. The Khulna University grading guide and the Islamic University of Technology grading guide both work from their own official scales, and the differences in probation and degree rules are instructive. The Asian University for Women grading guide, the Central Women’s University grading guide, the Eastern University grading guide and the Green University grading guide cover private universities whose scales and standing rules differ again. The point of reading them is not to borrow their rules, but to see how much of what circulates as generic advice is actually institution-specific.

Tips to protect and raise your PUST CGPA

• Protect attendance first. Below 60 percent attendance, the whole 10 percent participation component goes to zero in that course. No amount of final-exam revision recovers a component that is already lost.
• Weight your effort by credit. An hour spent on a 3-credit theory course is worth twice an hour spent on a 1.5-credit sessional for GPA purposes, and four times an hour on a 0.75-credit viva. Study plans that treat every course equally are not fair, they are inefficient.
• Fix borderline marks before anything else. A course sitting at 79, 74 or 69 percent is one mark from a higher grade band. Check totals, check class-test marks, and ask about rechecking where the department allows it.
• Use improvement repeats surgically. You have at most four, each capped at B, each usable only once per course and only on grades below B. Spend them on low grades in high-credit courses, not on the first disappointing result you see.
• Repeat a failed core course at the first opportunity. An F earns no credit, and the degree requires earned credits including core courses. Delaying a repeat compresses your later terms and risks the seven-year programme limit.
• Recalculate before you panic. If a result looks wrong, recompute it from the table and the formula in this guide before assuming probation, dismissal or a lost scholarship. Most “wrong result” scares turn out to be the F-denominator trap or the plain-average trap.
• Talk to your course adviser early. Every student is assigned a course adviser under the syllabus, and registration, add and drop decisions and probation questions are exactly what the adviser exists for. A ten-minute conversation in week two beats a crisis in week fourteen.

Frequently asked questions

What is the PUST grading system?

PUST uses the UGC uniform 4.00 scale: A+ (80 percent and above) is 4.00, A (75-79) is 3.75, A- (70-74) is 3.50, B+ (65-69) is 3.25, B (60-64) is 3.00, B- (55-59) is 2.75, C+ (50-54) is 2.50, C (45-49) is 2.25, D (40-44) is 2.00, and F (below 40) is 0.00. The full table, with the syllabus interpretations, is in the grading table section above.

How do I calculate my PUST GPA?

Multiply each completed course credit by its grade point, add those products, and divide by the total credits of the completed courses. For CGPA, do the same over all completed terms together. Never average term GPAs directly unless every term carried identical credits. The CGPAPro homepage calculator performs the same calculation if you enter credits and letter grades on the UGC 4.00 scale.

What CGPA do I need to graduate from PUST?

Under the engineering faculty ordinance, a bachelor’s degree requires a CGPA of not less than 2.20, plus the required earned credits including core courses – at least 157 credit hours for engineering under the ordinance, with the CSE curriculum totalling 165 credits. Other faculties may state their own credit totals, so confirm your programme’s requirement with your department.

Does an F grade count in my PUST GPA?

Under section 7.1 of the published engineering syllabus, a course with an F is not counted toward earned credits or GPA calculation, but the F remains permanently on your grade sheet and transcript, and a failed core course must be repeated, with the repeat grade capped at B. This differs from many other universities, so confirm the current rule in your own department handbook if your result sheet appears to treat the F differently.

Can I improve a grade I already passed?

Yes, within limits. A grade lower than B may be repeated once for improvement, forgoing the earlier grade, with the improvement grade capped at B, and a student may repeat at most four courses for improvement during the B.Sc. Engineering programme. A course already graded B or better cannot be repeated for improvement.

What happens if my GPA falls below 2.20?

You may be placed on academic probation, which the syllabus describes as a warning that satisfactory progress toward graduation is not being made. Probation can be triggered by a term GPA below 2.20 or a cumulative GPA below 2.20. The full suspension procedure is UNVERIFIED in the sources consulted, so read any probation notice carefully and speak to your course adviser at once.

Is there a Dean’s List or First Class band at PUST?

UNVERIFIED: no Dean’s List threshold and no class or division band table for PUST could be confirmed from a primary source during the research for this guide, so none is stated here. If a scholarship or job circular asks for a class, ask the Registrar’s Office or your department for the current official bands rather than relying on generic Bangladesh tables circulating online.

Final word for PUST students

The PUST grading system rewards students who understand two things: the table itself, which is standard, and the rules around the table, which are not. The 2.20 degree floor, the probation trigger, the F-grade exclusion and the B-capped repeats are the four rules that decide real outcomes, and all four are in the published syllabus, not in rumour. Learn them, calculate your own numbers with the formula in this guide, and check anything marked UNVERIFIED with your department before you act on it. Your CGPA is a weighted average, and once you see the weights, you can see exactly which course, which mark and which decision will move it next.

Sources and what still needs confirming

Primary source: Pabna University of Science and Technology, Faculty of Engineering and Technology, Department of Computer Science and Engineering, Syllabus for B.Sc. Engineering, Session 2017-2018, as published on Scribd: PUST CSE syllabus 2017-2018. Sections relied on: 6.9 (improvement repeats), 7.1 (F grades and earned credits), 7.2 (probation and normal progress), 7.3 (degree credit and GPA requirements), 8.4-8.6 (marks distribution and attendance), 9.1 (letter grades and grade points) and 9.2 (GPA calculation). Official university website: pust.ac.bd.

UNVERIFIED items, to confirm with the PUST Registrar’s Office or your department handbook: retake and improvement fees; Dean’s List thresholds; class and division bands; minimum attendance required to sit the term final examination; the full probation-to-suspension procedure and any probationary credit limit; whether non-engineering faculties apply the same F-grade exclusion; and whether any newer ordinance has replaced the 2017-2018 engineering syllabus for current sessions.