SPI to CPI Converter
Convert semester performance index (SPI) into cumulative performance index (CPI).
Your calculation
Result
Credit weighted averages recalculate as you type.
SPI to CPI weighted average formula
CPI = Sum of (SPI x Semester Credits) / Sum of Semester Credits- SPI represents single semester performance.
- CPI represents cumulative performance across completed semesters.
Check the source and scheme
This is a rule-based calculation, not an official certificate. Confirm the regulation and program on your marksheet before using the result.
- UGC credit framework for higher education (opens in a new tab)
University Grants Commission credit framework describing credit weighted grade point averages and the letter grade scale used by affiliated universities.
- AICTE model curriculum - attendance and evaluation norms (opens in a new tab)
AICTE model curriculum for undergraduate degree courses, covering the seventy five percent attendance requirement and internal or external assessment split.
How it works
Using the SPI to CPI Converter in two steps
Every step below reflects the actual calculation this tool runs, so you can check the result by hand if you need to.
- 1
Add rows for each semester with the SPI scored and semester credit hours.
- 2
The tool computes the credit-weighted cumulative CPI.
About this tool
Combine your semester SPI values with credit weights across semesters to compute exact CPI.
Grading guidance and conversion reference
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 |
Frequently asked questions
What is the difference between SPI and CPI?
SPI is for a single semester while CPI is the cumulative index across all semesters.
Is CPI cumulative?
Yes! CPI represents cumulative performance index across all semesters.