Percentage to 5 Point CGPA Converter
Reverse an IGNOU percentage into the five point CGPA using a numeric inverse of the official polynomial.
Percentage to 5 Point CGPA Converter
Result
The 5 point CGPA that produces your percentage under the IGNOU polynomial.
Check these details
- Percentage is required.
About this tool
IGNOU converts a five point CGPA to a percentage with a cubic polynomial, which has no simple reverse. This converter solves that polynomial numerically to return the five point CGPA behind your percentage, along with the qualitative grade band, for forms that insist on a grade point value.
How it works
Using the Percentage to 5 Point CGPA Converter in three steps
Every step below reflects the actual calculation this tool runs, so you can check the result by hand if you need to.
- 1
Enter the overall IGNOU percentage you want to express as a five point CGPA.
- 2
The tool searches the polynomial curve by bisection for the CGPA whose conversion equals your percentage.
- 3
The answer is converted forward again and shown next to the qualitative grade band so you can confirm it matches.
IGNOU Academic Tools & Conversion Hub
Explore related IGNOU calculators, grade tools, and official guides.
Related IGNOU Utilities & Converters
Convert your IGNOU grade card marks into an accurate credit weighted percentage and division.
Track submitted, evaluated and pending assignments across every course in your programme.
Convert an IGNOU 5 point scale CGPA into a percentage using the official non-linear polynomial.
IGNOU (Indira Gandhi National Open University) Passing Criteria & Marks Rules
IGNOU requires passing assignments (30% weightage) and Term-End Examinations (70% weightage) separately.
| Assessment Component | Max Marks | Pass Marks | Official Guidelines |
|---|---|---|---|
| Continuous Internal Assignment | 100 Marks | 40 Marks (40% UG) / 50 Marks (50% PG) | Must be cleared separately before TEE. |
| Term-End Examination (TEE) | 100 Marks | 40 Marks (40% UG) / 50 Marks (50% PG) | Main written university examination paper. |
Grace Marks Policy
IGNOU does not award grace marks. Students must reappear in sessional or TEE attempts until cleared.
ATKT & Carry-Over Progression Guidelines
- Re-registration is allowed even if previous semester TEE papers are pending.
- Maximum 6 years registration validity permitted for 3-year bachelor degree.
IGNOU (Indira Gandhi National Open University) Key Terms & Grading Definitions
Official explanations for YGPA, DGPA, SPI, CPI, CGPA and Distinction criteria.
30:70 Weightage Formula
Final Course Score = (Assignment Mark x 0.30) + (TEE Mark x 0.70).
Final Score = (Assignment x 0.3) + (TEE x 0.7)First Division
Overall aggregate percentage of 60% and above.
Downloading IGNOU Grade Card Equivalence Guidelines
Official instructions for downloading and verifying your university percentage conversion certificate.
IGNOU Student Evaluation Division Prospectus
Issuing Authority: Registrar (SED), IGNOU New DelhiStep-by-Step Download Instructions
- 1Log in to IGNOU Student Grade Card Portal (gradecard.ignou.ac.in).
- 2Print your consolidated grade card.
- 3Download the official evaluation prospectus stating the 30% assignment & 70% TEE weightage split.
Quick Conversion Lookup Table (Universal 10x Scale)
Standard 10-point linear scale percentage conversion table.
Formula: Percentage = CGPA x 10| SGPA / CGPA | Equivalent Percentage | Academic Division / Class |
|---|---|---|
| 6.00 | 60.00% | First Class |
| 6.25 | 62.50% | First Class |
| 6.50 | 65.00% | First Class |
| 6.75 | 67.50% | First Class |
| 7.00 | 70.00% | First Class |
| 7.25 | 72.50% | First Class |
| 7.50 | 75.00% | First Class with Distinction |
| 7.75 | 77.50% | First Class with Distinction |
| 8.00 | 80.00% | First Class with Distinction |
| 8.25 | 82.50% | First Class with Distinction |
| 8.50 | 85.00% | First Class with Distinction |
| 8.75 | 87.50% | First Class with Distinction |
| 9.00 | 90.00% | First Class with Distinction |
| 9.25 | 92.50% | First Class with Distinction |
| 9.50 | 95.00% | First Class with Distinction |
| 9.75 | 97.50% | First Class with Distinction |
| 10.00 | 100.00% | First Class with Distinction |
Numeric inverse of the IGNOU polynomial
Solve 62.5 + 99.167(CGPA) - 30(CGPA)^2 + 3.333(CGPA)^3 = Percentage for CGPA- The polynomial is defined over the forty to hundred percent range, so inputs outside it are rejected.
- The solution is found by bisection and confirmed by converting the result back to a percentage.
- IGNOU prints marks and grades rather than a CGPA, so this value is an equivalence for application forms.
Frequently asked questions
Does IGNOU issue a CGPA?
The grade card carries course marks and qualitative grades. A five point CGPA is derived, which is why a converter is needed when a form demands one.
Why is the answer not a simple division?
The forward conversion is a cubic polynomial, so the relationship between CGPA and percentage is curved. A numeric solver finds the exact point on that curve.
Can I use this for a single course?
No. The polynomial applies to the overall programme percentage, not to a single course result.
How accurate is the numeric solution?
The bisection runs to a precision far finer than the two decimals displayed, so the recomputed percentage matches your input to the printed accuracy.
What range of percentages is supported?
Forty to a hundred percent, since the IGNOU polynomial is defined from the pass mark upward.
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Convert an IGNOU 5 point scale CGPA into a percentage using the official non-linear polynomial.
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