IIT Bombay CPI to Notional Percentage: A Reporting Guide
IIT Bombay’s certificate uses CPI and describes a notional numerical result.
Which record does this guide cover?
Keep the label CPI from the original record rather than silently changing it to a different grade metric. The published certificate applies a notional factor; it does not reconstruct marks from a relative grading system. Attach the institute document when official conversion evidence is requested.
The certificate states that IIT Bombay grade points are not convertible into percentages. It permits CPI ×10 only as a notional numerical percentage, for all graduates irrespective of graduation year. It also states that personalised conversion certificates are not issued; the published certificate can be downloaded.
Worked example using the supported expression
For 8.20 CPI, the selected rule gives 82.00%. Keep the original grade-point value and the rule label together so that the saved result can be checked against its source.
| CPI | Notional percentage |
|---|---|
| 6.00 | 60.00% |
| 7.00 | 70.00% |
| 8.00 | 80.00% |
| 9.00 | 90.00% |
Notional percentage = CGPA × 10
Use the calculator with your own record
- Identify the programme, regulation and relevant admission, completion or examination-session boundary.
- Read the official source linked below and select the matching preset.
- Enter actual obtained and maximum marks for a marks-based preset, or the final index on the scale requested.
- Check the displayed formula and label before saving the result.
Keep a usable report
Save the PDF with the original academic record when you need a portable calculation. Print report prepares the same calculation for paper; Download image produces a PNG. The source and scope are part of the report, so keep them visible when explaining the result.
Share opens a preview. It starts with the tool link; Include current result adds the entered values and calculation details. Review that preview before sharing. Website reports are independent calculations and do not replace certificates issued by the awarding institution.
Questions about this IIT Bombay calculation
Should I call the converted IIT Bombay value actual marks?
No. The certificate permits a notional numerical percentage. Keep CPI and the notional label visible.
Can one semester’s GPA stand in for the final result?
Use the period and metric requested by the application. A semester average and a cumulative record can describe different courses; calculate a credit-weighted average only under the relevant academic rules.
Try the programme-specific calculator
Open the full university calculator and usage guide, or use the same tool below.
Official source checked
Reviewed on October 23, 2026.
Worked examples use simplified calculation models. Check your institution’s current regulations, grading scale, rounding rules and official records before relying on a result.