Last updated: October 14, 2025
TL;DR: The Diploma CGPA Calculator quickly computes your overall credit-weighted CGPA and semester SGPA based on specific BTEB regulations (2010, 2016, 2022), offering instant one-click export for reliable guidance.
The BTEB Diploma CGPA is calculated by first determining the credit-weighted SGPA for each semester, then aggregating these SGPA values using a specific, official semester weightage prescribed by your particular BTEB Regulation (e.g., 2010 vs. 2022). Be aware that BTEB policies govern how retake/backlog grades are treated, often replacing the previous grade but sometimes subject to a grade ceiling, directly impacting your final CGPA.
How to Calculate Your Diploma CGPA (BTEB)
Select your correct BTEB Regulation (2010, 2016, or 2022) to apply the correct semester weightage.
Choose the number of semesters you need to calculate (e.g., 8/8, 4/8).
Enter the Semester GPAs (e.g., 3.65) for all completed semesters into the tool.
The calculator automatically applies the BTEB-prescribed semester weights (e.g., 5-5-10-10-20-20-20-10).
View the Result Summary showing your final CGPA, Letter Grade, and Semesters Counted.
Export or Share your result summary as a PDF or prefilled link.
Supports Probidhan 2010, 2016, 2022 • 8-semester weighted CGPA
Semester weightage is applied automatically.
Enter Semester GPAs (0.00 – 4.00)
Leave a semester blank if not completed yet — we’ll compute a
progress CGPA using normalized weightage of the filled
semesters.
Result Summary
Note: BTEB shows numeric CGPA. Letter grades shown here follow a common Bangladesh 4‑point mapping for convenience.
The definitive, credit-weighted Diploma CGPA Calculator for Diploma in Engineering (Polytechnic) students under the Bangladesh Technical Education Board (BTEB). Get an accurate CGPA estimate based on the official BTEB 2010, 2016, and 2022 Regulations, complete with semester-wise weightage and a breakdown of your .
How Diploma CGPA is Calculated (BTEB Basics)
Calculating your final () in a BTEB Diploma in Engineering program is a two-step, weighted process that accounts for both the credits of individual subjects and the significance (weight) of each academic semester.
Step 1: Calculating Credit-Weighted SGPA (Per Semester)
Your () is the weighted average of the grade points earned in all subjects completed in a single semester. uses a credit system where subjects with more credits contribute more heavily to your .
The exact formula is:
Example: If you score a (B+) in a -credit subject and a () in a -credit subject:
Important: If you receive an grade in any subject, you fail that semester. The grade’s point value () is used in the calculation, which significantly lowers the result. You must clear all grades to graduate and before the can be finalized.
Step 2: Calculating Overall CGPA (Semester-Weighted)
The is the aggregate of all your results, but it is not a simple average. assigns different weightages to different semesters, making later semesters count for a higher percentage of your final .
The formula is:
| Sem | SGPA | Weight (2022 Reg.) | Weight (2016 Reg.) | Weight (2010 Reg.) |
| 1st | 3.65 | 5% | 5% | 5% |
| 2nd | 3.14 | 5% | 5% | 5% |
| 3rd | 3.16 | 10% | 5% | 5% |
| 4th | 2.68 | 10% | 10% | 10% |
| 5th | 3.64 | 20% | 15% | 15% |
| 6th | 3.18 | 20% | 20% | 20% |
| 7th | 3.69 | 20% | 25% | 25% |
| 8th | 3.68 | 10% | 15% | 15% |
| Total | – | 100% | 100% | 100% |
You can instantly see the major differences in weightage for the , and semesters between the and regulations. Our calculator automatically switches these weights based on your selection.
Diploma Grading System in Bangladesh (BTEB) rules
The BTEB grading scale converts letter grades into a standard -point scale for use in and calculations.
| Marks | Later Grade | Grade Point |
| 80 – 100 | A + | 4 |
| 75 – 80 | A | 3.75 |
| 70 – 75 | A- | 3.5 |
| 65 – 70 | B | 3.25 |
| 60 – 65 | B+ | 3 |
| 55 – 60 | B- | 2.75 |
| 50 – 65 | C+ | 2.5 |
| 45 – 50 | C | 2.25 |
| 40 – 45 | D | 2 |
| 0 – 39 | F | 0 |
Footnote on Passing: A minimum grade of D (2.00) is required to pass any individual subject. A grade of (Failure/Backlog) means the subject must be retaken.
Regulation & Year Differences: BTEB 2010 vs. Later Updates
The most critical factor in your calculation is the Regulation under which you were admitted, as this dictates the semester weightage.
BTEB 2010 Regulation
The Regulation places the heaviest emphasis on the 7th Semester (25%) and the Semester . The later semesters are significantly more impactful. The Semester is lightly weighted at only .
BTEB 2016/2022 Regulations
Later regulations (including , as seen in the table avobe) tend to distribute the weight more evenly, with , and Semesters each carrying a weight. This shift means that consistent performance throughout the entire course, not just a strong performance in the semester, is vital.
Retake, Backlog, and Improvement Rules
The effect of a retake on your is a major concern for students. policy generally states that when a course with an grade (or an improvement attempt) is retaken, the new grade replaces the old one in the calculation of the .
Failure ( Grade): The grade (0.00) is replaced by the new grade point after a successful retake. You must successfully clear all grades to be eligible for the final certificate.
Grade Improvement: Students may be allowed to retake a subject they passed to improve their grade point. However, regulations may impose a grade ceiling on retake/improvement attempts (e.g., the grade may be capped at or regardless of performance). Always verify this ceiling rule with your institute’s exam section.
Step-by-Step: Using the Diploma CGPA Calculator
Our calculator is designed for maximum BTEB accuracy and user-friendliness, supporting progress calculation even if you haven’t completed all semesters.
1. Select Your BTEB Regulation
Use the dropdown menu at the top to select your admission Regulation (Probhidhan): 2010, 2016, or 2022. This instantly loads the correct semester weightage.
2. Enter Your Semester GPAs
Input the (between and ) you achieved for each completed semester.
Progress : If you have only completed, say, out of semesters, leave the remaining fields blank. The calculator will automatically compute a progress by normalizing the weight of the filled semesters.
3. Click "Calculate CGPA"
The tool performs the semester-weighted calculation instantly.
4. Review the Result Summary
A dedicated summary card appears, featuring:
Your final (e.g., )
The corresponding ()
The Semesters Counted (e.g., or )
5. Export and Share Your Result (Superior Features)
Unlike basic calculators, our tool offers essential functionalities for students:
Copy Summary: Quickly copy the result text.
Download PDF: Generate a formatted PDF summary for your records or to share with guardians/coordinators.
Reset: Clear all fields and start over.
SGPA vs. CGPA: Understanding the Difference
| Feature | SGPA (Semester Grade Point Average) | CGPA (Cumulative Grade Point Average) |
| Scope | One academic semester only. | All weighted semesters up to the current point. |
| Calculation | Credit-weighted average of individual course grades. | Semester-weighted average of all SGPA results. |
| Purpose | Measures performance in a single term. | Measures overall academic performance (Final result). |
Frequently Asked Questions (FAQs)
A retake of an F-graded subject replaces the 0.00 grade point with the new passing grade in the SGPA calculation, generally increasing your CGPA. Always verify the grade ceiling rule for improvement attempts with your institution.
To calculate your CGPA under the Bangladesh Technical Education Board (BTEB), simply select your regulation (2010, 2016, or 2022), enter your GPA for all 8 semesters, and your CGPA will be displayed automatically—no need to click a calculate button.
Choose the regulation (2010, 2016, or 2022) that was in effect when you were first admitted to your Diploma in Engineering program. The regulation dictates the semester weightage.
The minimum passing grade for an individual subject is typically D (2.00). An F (0.00) signifies failure, requiring a retake.
Yes, all 8 semesters are counted, but each semester is assigned a different weightage (e.g., 5% for the 1st semester, up to 25% for the 7th in 2010 Regulation).
Yes. Our tool calculates a progress CGPA by taking the SGPA of the completed semesters and normalizing their prescribed weightage.
It is highly accurate as it follows the official BTEB semester weightage rules for all regulations. However, it is an estimate; use your official BTEB/institute statement as the final record.
No. All calculations are performed instantly in your browser (client-side). We do not store, collect, or transmit any of your grade data.
Privacy
The core mission of our Diploma CGPA Calculator is to provide BTEB Polytechnic students with the most accurate, policy-aware tool for estimating their academic standing. Unlike standard calculators, this application strictly adheres to official BTEB regulations, including the specific semester weightages for the 2010, 2016, and 2022 curriculum revisions. By operating entirely client-side (in your browser) with zero data collection, the tool ensures maximum privacy while offering advanced features like real-time SGPA/CGPA calculation, instant BN/EN switching, and one-click PDF export, making it the definitive, trustworthy resource for students, parents, and coordinators.
Disclaimer
This tool provides an estimate for guidance only. Official results, final CGPA, and grade letters are issued exclusively by BTEB or your specific institute. Policies regarding retake/backlog grades, grade replacement, and regulation details are subject to official BTEB circulars.
References (Official BTEB Sources)
Bangladesh Technical Education Board (BTEB) – Official Regulations & Circulars: The primary source for grade-point mapping, semester weightage, and retake policies for the and Regulations.
Ministry of Education, Bangladesh (MoE): Overarching policy documents governing technical education standards and grading systems.
BTEB Academic Manual/Exam Controller’s Guide: Documents detailing the specific credit values for courses and the methodology for calculating from individual subject grades.
Official BTEB Result Portals: Guidance on how to interpret official mark sheets and final statements.
Polytechnic Institute Examination Manuals (Publicly Available): Local interpretation and application of BTEB rules concerning grade improvement, withdrawal, and backlog clearance.