IIT Calculator is designed to calculate your Semester Performance Index (SPI) and Cumulative Performance Index (CPI) accurately.
It follows the official 10-point scale used by top IITs (Bombay, Delhi, Madras, Kanpur, Kharagpur, etc.), supporting standard letter grades like AA, AB, BB.
How to Use IIT SPI/CPI Calculator
Add Courses
Enter correct credits (Imp: Labs often have different credits).
Select Grade
Select AA (10), AB (9), etc. Leave blank if audited.
Get CPI
Instant SPI & CPI calculation for your resume.
IIT Grading Scale
| Letter Grade | Grade Points | Description |
|---|---|---|
| AA | 10 | Outstanding |
| AB | 9 | Excellent |
| BB | 8 | Very Good |
| BC | 7 | Good |
| CC | 6 | Average |
| CD | 5 | Below Average |
| DD | 4 | Marginal Pass |
| FR / F | 0 | Fail |
IIT Grading: SPI vs CPI & Good Scores
📈 SPI vs. CPI
SPI (Semester Performance Index): GPA of a single semester.
CPI (Cumulative Performance Index): Weighted average of all semesters. This is what matters for placements.
🏆 What is a Good CPI?
- > 9.0: Outstanding (Ivy League MS/PhD).
- > 8.0: Excellent (Top Tier Placements/PSUs).
- > 7.0: Good (Eligible for most companies).
- > 6.5: First Class Equivalent.
🚫 Special Grades
FR (Fail Repeat): Must repeat the course. The new grade replaces the old one.
W (Withdrawn): Course dropped; does not affect CPI.
Frequently Asked Questions (IITs)
SPI, CPI & Conversion
What is the difference between SPI and CPI?
SPI (Semester Performance Index) reflects your performance in a specific semester. CPI (Cumulative Performance Index) is the weighted average of all your SPIs till date. CPI is the final metric used for degree classification.
Is there a formula to convert IIT CPI to percentage?
Use the industry standard rule: Percentage = CPI ×
10.
Example: 8.5 CPI ≈ 85%. Note: Some specific IITs might have minor variations
(e.g., subtracting 0.5), but for placements and CVs, the x10 rule is widely
accepted.
Grades & Placements
What is considered a "Good" CPI in IIT?
Generally:
• 8.5+: Top-tier (Day 1 Placements, Top Admission).
• 7.5 - 8.5: Very Good (Eligible for almost all core/tech
roles).
• 6.5 - 7.5: Decent (Above First Class cut-off).
• Below 6.0: Might face eligibility issues for some PSUs/MNCS.
What does 'FR' grade mean?
FR stands for Fail Repeat. It means you failed the course and must repeat it. Once you clear it, the new grade replaces the FR grade in your CPI calculation (though the FR entry might remain on the transcript).
Does a 'W' (Withdrawn) grade affect CPI?
No. A 'W' Grade indicates you withdrew from the course before the deadline. It has no credit weightage and does strictly not affect your SPI or CPI.
General Rules
Is the grading relative or absolute?
Most IITs follow Relative Grading. Your grade depends on your score relative to the class average (Mean) and standard deviation. Top percentiles get AA, while bottom ones might get DD or FR.
Do Audit courses count in CPI?
No, Audit courses (indicated by 'AU' or similar) are for knowledge only. They do not carry credits towards SPI or CPI calculation.
Can I retake a course to improve CPI?
Usually, you can only retake a course if you have failed it (FR/F grade). You typically cannot repeat a passed course just to improve the grade (check your specific IIT Senate rules).