O Level and A Level Equivalence Calculator (IBCC)
Convert O Level, IGCSE and A Level grades to matric and intermediate marks using the IBCC table.
How O Level and A Level equivalence works
Pakistani universities and colleges rank students on matric and intermediate marks, so O Level and A Level grades have to be turned into marks first. The Inter Board Committee of Chairmen (IBCC) does this with a fixed table: each grade is given a set number of marks out of 100, the subjects are added up, and the total is expressed as a percentage.
IBCC grade conversion table
| Letter grade | Marks | Numeric grade | Marks |
|---|---|---|---|
| A* | Marks above 90 (2021 session onwards) | 9 | Marks above 90 (2021 session onwards) |
| A | 85 | 8 | 87 |
| B | 75 | 7 | 82 |
| C | 65 | 6 | 77 |
| D | 55 | 5 | 70 |
| E | 45 | 4 | 60 |
| F and G | Not accepted for equivalence | 3 | 50 |
| 2 | 40 |
The same letter table is used for O Level and A Level. For an A* or a grade 9, IBCC uses the percentage marks shown for that subject when they are above 90. If you do not have them, 90 gives a safe lower figure.
O Level to matric
IBCC counts eight O Level subjects for matric (SSC) equivalence. Add the marks for the eight grades and divide by 800.
Example: 2 A*, 3 A, 2 B and 1 C gives (2 × 90) + (3 × 85) + (2 × 75) + 65 = 650 out of 800, which is 81.25%, or 894 marks out of 1,100.
A Level to intermediate
For intermediate (HSSC) equivalence, the O Level marks out of 800 are added to the marks of three A Level subjects out of 300, giving a total out of 1,100.
Example: O Level marks of 650 with A Level grades A, B and C gives 650 + 85 + 75 + 65 = 875 out of 1,100, which is 79.55%.
This means O Level grades carry most of the weight in the intermediate equivalence: 800 of the 1,100 marks.
Equivalence for common grade sets
| Grades | Marks out of 800 | Percentage | Out of 1,100 |
|---|---|---|---|
| 8 A* | 720 | 90.00% | 990 |
| 8 A | 680 | 85.00% | 935 |
| 4 A and 4 B | 640 | 80.00% | 880 |
| 8 B | 600 | 75.00% | 825 |
| 4 B and 4 C | 560 | 70.00% | 770 |
| 8 C | 520 | 65.00% | 715 |
A* is counted as 90 in this table.
What this estimate leaves out
- Subject rules: IBCC requires certain compulsory subjects, such as English, Urdu, Islamiyat, Pakistan Studies and Mathematics for students in Pakistan, and a subject group for A Level. This calculator only converts the grades you enter.
- A* marks: the exact figure above 90 comes from your statement of results.
- Total marks: matric totals differ by board and year. Change the total marks box to match the one your university uses.
- The certificate: universities accept only the equivalence certificate issued by IBCC, not a calculated figure.
Table last reviewed in November 2026. This is an estimate, and IBCC’s certificate is the official result.
How to cite this page
CalcPulse. (2026). O Level and A Level Equivalence Calculator. https://calcpulse.com/ibcc-equivalence-calculator-pakistan/
Sources
The rates and rules on this page were checked against these official sources.
Frequently asked questions
How is O Level equivalence calculated?
Each of your eight O Level grades is changed to marks using the IBCC table (A = 85, B = 75, C = 65, D = 55, E = 45), the marks are added and divided by 800 to get a percentage.
How is A Level equivalence calculated?
Your O Level marks out of 800 are added to the marks of three A Level subjects out of 300. The total out of 1,100 gives your intermediate equivalence.
How many marks is an A* in IBCC equivalence?
From the 2021 exam session onwards IBCC uses the marks above 90 shown for the subject. Before that an A* was a flat 90.
How many subjects are needed for equivalence?
Eight subjects at O Level and three subjects at A Level.
What is the equivalence of 8 A grades?
Eight A grades are 680 out of 800, which is 85%, or 935 marks out of 1,100.
Do universities accept a calculated equivalence?
No. Universities need the equivalence certificate issued by IBCC. Use this calculator to estimate your marks before you apply.
Last reviewed and updated by the CalcPulse team