TU Semester System Explained: Complete Guide for Students
Updated: April 2026 · 5 min read
Tribhuvan University (TU) is Nepal's oldest and largest university, serving hundreds of thousands of students across the country. In recent years, TU has undergone a major transformation by shifting many of its programs from the traditional annual examination system to the semester system. If you're a TU student or planning to enroll, understanding exactly how the TU semester system works is essential for managing your academic journey.
History of the TU Semester System
TU officially began transitioning to the semester system in 2074/75 BS (2017/18 AD). The move was driven by the need to align with international academic standards, improve teaching quality, and provide continuous assessment rather than relying solely on year-end exams. Programs like BCA, BBA, BIM, and B.Sc. CSIT were among the first to adopt the semester format.
Before the semester system, TU relied on an annual system where students sat for one comprehensive exam at the end of each academic year. The semester system introduced mid-term evaluations, internal assessments, and more frequent examinations – giving students multiple opportunities to demonstrate their learning.
Programs Under the TU Semester System
Here are the major TU programs that now operate under the semester system:
| Program | Full Name | Duration |
|---|---|---|
| BCA | Bachelor of Computer Application | 8 Semesters (4 Years) |
| BBA | Bachelor of Business Administration | 8 Semesters (4 Years) |
| BIM | Bachelor of Information Management | 8 Semesters (4 Years) |
| B.Sc. CSIT | Bachelor of Science in CSIT | 8 Semesters (4 Years) |
| MBS | Master of Business Studies | 4–5 Semesters |
| BBS | Bachelor of Business Studies | 4 Years (Transitioning) |
Each semester typically spans 5–6 months including exam periods. Two semesters make up one academic year.
How Does Grading Work in the Semester System?
The TU semester system uses a letter grading system on a 4.0 GPA scale, replacing the older percentage and division-based classification. Here is the complete grading scale:
| Grade | Marks Range | Grade Point | Remarks |
|---|---|---|---|
| A | 90–100 | 4.0 | Excellent |
| A- | 80–89 | 3.7 | Very Good |
| B+ | 70–79 | 3.3 | Good |
| B | 60–69 | 3.0 | Satisfactory |
| B- | 55–59 | 2.7 | Above Average |
| C+ | 50–54 | 2.3 | Average |
| C | 45–49 | 2.0 | Below Average |
| D | 40–44 | 1.7 | Pass |
| F | Below 40 | 0.0 | Fail |
Semester System vs. Old Annual System
| Feature | Annual System | Semester System |
|---|---|---|
| Exam Frequency | Once a year | Every 5–6 months |
| Grading | Percentage & Division | GPA on 4.0 Scale |
| Internal Assessment | Minimal or none | 20–40% weightage |
| Syllabus Coverage | Full year at once | Spread across semesters |
| Result Waiting | 6–12+ months | Typically faster |
Understanding Credit Hours
In the semester system, every subject carries a credit hour value. A credit hour generally represents one hour of lecture per week for the entire semester. Lab or practical courses may carry fewer credits relative to contact hours. For example:
- A 3-credit theory course = 3 hours of lectures per week
- A 1-credit practical course = 2–3 hours of lab per week
Credit hours are critical because your GPA is calculated as a weighted average based on credit hours – subjects with more credits have a larger impact on your GPA.
How SGPA and CGPA Are Calculated
SGPA (Semester Grade Point Average) is the GPA for a single semester. It is calculated using:
SGPA = Σ (Grade Point × Credit Hour) ÷ Σ Credit Hours
CGPA (Cumulative Grade Point Average) is the overall GPA across all semesters you have completed. It follows the same formula but includes all subjects from every semester.
Division Classification Based on CGPA
| Division | CGPA Range |
|---|---|
| Distinction | 3.6 and above |
| First Division | 3.2 – 3.59 |
| Second Division | 2.7 – 3.19 |
| Pass | 2.0 – 2.69 |
Worked Example: BBA Student (4 Semesters)
Let's calculate the CGPA for a BBA student who has completed four semesters:
| Semester | Total Credit Hours | Total Grade Points Earned | SGPA |
|---|---|---|---|
| Semester 1 | 18 | 59.4 | 3.30 |
| Semester 2 | 18 | 61.2 | 3.40 |
| Semester 3 | 21 | 66.15 | 3.15 |
| Semester 4 | 21 | 73.50 | 3.50 |
CGPA = (59.4 + 61.2 + 66.15 + 73.50) ÷ (18 + 18 + 21 + 21)
= 260.25 ÷ 78
= 3.34 (First Division)
This student falls in the First Division category at TU. Want to calculate your own? Use our free calculator:
Frequently Asked Questions
1. Can I convert my TU semester CGPA to percentage?
TU does not have an official CGPA-to-percentage conversion formula. However, a commonly used approximation is: Percentage ≈ CGPA × 25. For official purposes, always refer to your transcript. You can also check our TU grading system guide for more details.
2. What happens if I fail a subject in the semester system?
If you receive an F grade, you must retake the exam in the next available examination period (back paper). The failed grade will be replaced by your new grade in the CGPA calculation.
3. Is the semester system better than the annual system?
The semester system offers more frequent assessments, continuous learning, and faster results. Most students find it manageable because the syllabus is divided into smaller portions. However, it does require consistent effort throughout the semester.
4. How many credits do I need to graduate from a TU semester program?
The total credits vary by program. For example, BCA requires around 126 credit hours across 8 semesters, while BBA requires approximately 120–126 credit hours. Check your specific program's curriculum for exact requirements.
Understanding how the TU semester system works puts you in control of your academic progress. Use our TU Semester GPA Calculator to track your grades and plan ahead for a strong CGPA.