Bihar's University System & CGPA Grading Explained
Bihar has a long academic tradition that dates back to Patna University, established in 1917 and one of India's oldest universities, and the ancient seat of learning at Nalanda. Today the state's network includes Babasaheb Bhimrao Ambedkar Bihar University (BRABU) in Muzaffarpur, Magadh University (Bodh Gaya), Lalit Narayan Mithila University (Darbhanga), Tilka Manjhi Bhagalpur University, Aryabhatta Knowledge University (Patna), and Patliputra University, while central institutions such as IIT Patna and Nalanda University serve the region. The Bihar School Examination Board (BSEB) conducts the Class X and Class XII examinations for school-leaving students.
Under the Choice Based Credit System (CBCS) approved by the Bihar Raj Bhavan (Governor's Secretariat, Patna) and the UGC 10-point grading scale, every Bihar state university uses the same CGPA to percentage conversion rule: Percentage = CGPA × 10. We currently index 34 verified Bihar university formulas below — select your university to convert instantly, free of cost, with a printable PDF report.
Official CGPA to Percentage Formula for Bihar Universities
All 17 Bihar state universities follow the same UGC CBCS 10-point conversion published under the Bihar Raj Bhavan approved ordinance. The standard formula is:
Official Bihar CBCS CGPA to Percentage Formula:
Percentage (%) = CGPA × 10
Source: Bihar Raj Bhavan approved CBCS ordinance for state universities; UGC 10-point grading scale.
Verified from: BRABU official notification dated 06/07/2026; TMBU CBCS course structure; Patna University UG Ordinance dated 15 June 2022; BAU Sabour PG Prospectus 2026-27.
Note: Some online sources incorrectly list (CGPA - 0.75) × 10 for Bihar universities. This is the AICTE formula used by AKTU, SPPU, MAKAUT etc. — it does NOT apply to Bihar state universities.
Official Bihar University Notices & References
- BRABU: CGPA to Percentage Conversion Notification (06/07/2026)
- Patna University: UG Ordinance dated 15 June 2022 (Percentage = CGPA × 10)
- TMBU: CBCS Course Structure (percent = CGPA × 10)
- Patliputra University: Notice Regarding CGPA Calculation Method (26-11-2022)
- BAU Sabour: PG Prospectus 2026-27 (OGPA × 10)
- Bihar Raj Bhavan: CBCS Ordinance & Regulations for Bihar Universities
All 17 Bihar University Formulas — Quick Reference Table
| # | University | Location | Official Formula | Example (CGPA 8.0) | Calculator |
|---|---|---|---|---|---|
| 1 | PU | Patna | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 2 | BRA Bihar | Muzaffarpur | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 3 | BN Mandal | Madhepura | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 4 | JPU | Chapra | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 5 | KSD Sanskrit | Darbhanga | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 6 | LNMU | Darbhanga | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 7 | Magadh | Gaya | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 8 | MMH | Patna | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 9 | NOU | University | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 10 | TMBU | University | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 11 | VKSU | Ara | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 12 | AKU | Patna | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 13 | BAU | Sabour | OGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 14 | BASU | Patna | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 15 | PPU | Patna | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 16 | Munger | Munger | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
| 17 | Purnea | Purnea | CGPA × 10 | 8.0 × 10 = 80% | Convert → |
Formula verified from official academic regulations and Bihar Raj Bhavan approved CBCS ordinance. Always cross-check the "Official Notice" badge on the university page before submitting forms.
How to Convert CGPA to Percentage: Step-by-Step Guide
- Step 1 — Find your CGPA: Locate the final CGPA on your marksheet or university website, e.g.
8.0. - Step 2 — Pick your university formula: Select your university from the directory below; the official formula is applied automatically by our calculator. All Bihar universities use
CGPA × 10. - Step 3 — Apply the formula: For any Bihar university,
8.0 × 10 = 80%. - Step 4 — SGPA to CGPA: If you only have semester SGPAs, aggregate them by credits first — your CGPA is the credit-weighted average of all semesters.
Use the Semester Aggregator tab on each university page to combine semesters into a single CGPA before converting.
All 34 Bihar Universities — CGPA to Percentage Calculators
Every university below has a dedicated calculator with its official conversion formula, reference table and PDF report download:
Bihar CGPA to Percentage — FAQs
Q1: What is the official CGPA to percentage formula for Bihar universities?
All 17 Bihar state universities follow the UGC Choice Based Credit System (CBCS) with a 10-point grading scale. The official conversion formula, approved by the Bihar Raj Bhavan (Governor's Secretariat, Patna), is: Percentage of Marks = CGPA × 10. For example, a CGPA of 8.0 converts to 8.0 × 10 = 80%. This formula was confirmed by BRABU's official notification dated 06/07/2026 and TMBU's CBCS course structure. Bihar Agricultural University (BAU Sabour) uses OGPA × 10.
Q2: Does the CGPA × 10 formula apply to all Bihar universities?
Yes. All 17 state universities in Bihar — Patna University, BRABU, B.N. Mandal, JPU, KSD Sanskrit, LNMU, Magadh, MMH Arabic & Persian, Nalanda Open, TMBU, VKSU, AKU, BAU Sabour, BASU, PPU, Munger, and Purnea — follow the CGPA × 10 conversion under the Bihar Raj Bhavan approved CBCS ordinance. BAU Sabour uses OGPA × 10 (equivalent to CGPA × 10).
Q3: Was the formula different earlier for Bihar universities?
Some sources incorrectly listed (CGPA - 0.75) × 10 for Bihar universities. This formula is used by institutions like AKTU (UP), SPPU (Maharashtra), and MAKAUT (West Bengal) under AICTE guidelines — it does NOT apply to Bihar state universities. Bihar's Raj Bhavan approved ordinance prescribes CGPA × 10.
Q4: Which CGPA at Bihar universities equals 60 percent?
A CGPA of 6.0 converts to exactly 60%: 6.0 × 10 = 60.0%. This is the standard First Class boundary at all Bihar state universities.
Q5: How do I convert SGPA to CGPA before applying the formula?
Each semester reports an SGPA (semester grade point average). Your final CGPA is the credit-weighted average of all semester SGPAs. Once you have your final CGPA, apply the Bihar rule: Percentage = CGPA × 10. Use the Semester Aggregator tab on the university page to combine semesters first.
Q6: Does the CGPA × 10 formula apply to PG courses at Bihar universities?
Yes. The Bihar Raj Bhavan approved CBCS ordinance applies uniformly across UG and PG programmes at all state universities. The BRABU notification specifically states the formula is applicable for all programmes under the ordinance and regulations.