To apply to Pakistani universities, O and A-Level students must convert their Cambridge grades into the local 1100-mark FSc system using the Inter Board Committee of Chairmen (IBCC) formula.
1. The IBCC Grade Conversion Scale
Each letter grade maps to a specific numerical value out of 100.
IBCC grade conversion scale
| Grade |
Equivalent Marks |
| A* | 90+ (Subject-specific) |
| A | 85 |
| B | 75 |
| C | 65 |
| D | 55 |
| E | 45 |
Crucial A* Update: An A* is no longer a flat 90. IBCC now assigns a specific numerical value depending on the subject and examination session. For example, in 2027, an A* in A-Level Physics is officially converted to a 95, while Chemistry and Mathematics convert to a 94.
2. The 1100-Mark Formula
Unlike standard percentage scales, IBCC simply adds the marks of your O-Level and A-Level subjects together to create your FSc equivalent:
- O-Level Component (800 Marks): Convert your 8 required O-Level grades into marks and sum them up.
- A-Level Component (300 Marks): Convert your 3 primary A-Level subjects into marks and sum them up.
- Final Equivalence (1100 Marks): Add both totals together.
For example, if you score straight A's (85 per subject) across the board, your calculation is 680 (O-Levels) + 255 (A-Levels) = 935 / 1100. This final 1100-mark total is the baseline figure universities use alongside entry test scores (like MDCAT, ECAT, or NET) to calculate your final admission aggregate.