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IBCC O Level & A Level Equivalence Calculator

Choose your route and grades. See the conversion, the subjects counted and the calculation behind your estimate.

Verified tables: 2021–2026. The 17 February 2026 notification is included for the specified HSSC science-group cohort. This tool provides an estimate; IBCC issues the official certificate.

1

Choose your qualification and route

For mixed Pakistan/abroad examinations, special exemptions or retakes, confirm your route with IBCC. AS-only results and unverified examination years are not supported.

2

Enter subjects and grades

O Level / IGCSE subjects

Compulsory subjects are fixed. Choose three distinct academic electives. Each subject uses the table for its own examination year.

How O Level equivalence is calculated in Pakistan

IBCC converts each accepted grade to marks out of 100. For the Pakistan examination route, the usual O Level requirement is eight subjects: English, Mathematics, Urdu, Islamiyat and Pakistan Studies, plus three academic electives. The overseas SSC route generally uses five subjects: English, Mathematics and three electives. Exemptions and mixed-location qualifications need separate attention.

Percentage = total conversion marks ÷ (counted subjects × 100) × 100. Scaled marks are that percentage multiplied by the selected display total and divided by 100.

For example, eight A grades convert to 680 out of 800, giving 85%. That is 935 on a 1,100-mark display scale, or 765 on a 900-mark scale. The percentage is 85% in both cases. Select the scale requested by your certificate or admission form; a display option is not a statement that IBCC uses one total for every certificate.

How A Level equivalence uses O Level results

HSSC equivalence is not normally an average of the three A Level grades alone. O Level grades contribute too. For the earlier route, eight counted O Level subjects plus three A Level subjects give a conversion denominator of 1,100. A route with five O Level subjects and three A Levels uses 800 conversion marks before scaling. The calculator shows its exact denominator so you can check the arithmetic.

The February 2026 science-group change

IBCC’s notification dated 17 February 2026 specifies compulsory O Level subjects and the relevant core A Level sciences for HSSC Pre-Medical, Pre-Engineering and Computer Science equivalence. O Level electives are excluded from that HSSC marks calculation, although the O Level qualification requirements still apply. The notice specifies students completing O Level/equivalent qualifications in session 2026 and A Level qualifications thereafter.

For the standard Pakistan route, five compulsory O Level subjects plus three core A Levels therefore give a conversion denominator of 800. Foreign and dual nationals retain the stated exemption from Urdu, Islamiyat and Pakistan Studies. Humanities and earlier completion cohorts use the earlier route in this calculator. For A Level examinations abroad, the calculator retains the earlier combined-subject route as a planning estimate and flags the 2026 policy’s applicability for IBCC confirmation. Any displayed warning is part of the estimate.

Why the A* examination year matters

A, B, C, D and E convert to 85, 75, 65, 55 and 45 marks respectively. A* is different: IBCC publishes subject-specific annual tables. The calculator includes verified 2021–2026 tables instead of treating every A* as 90 or 95.

For the 2026 examination session, O Level English and Urdu A*s are 93; the other listed O Level subjects are 94. A Level Physics is 95, Computer Studies is 93, and the other listed applicable electives are 94. Where an official table lists a subject as NA, the calculator asks you to check with IBCC rather than inventing a value.

Frequently asked questions

Does this give me an official equivalence certificate?

No. It is a planning estimate from entered grades and published tables. IBCC decides official equivalence and any exemption or subject deficiency.

Can I enter IGCSE numeric grades?

Yes, in the O Level section. Numeric 8–2 convert to 87, 82, 77, 70, 60, 50 and 40. Numeric 9 uses the applicable subject/session top-grade value. Conversion does not itself establish that every grade satisfies a particular subject requirement.

Can subjects have different examination years?

Yes. Select the year for each subject. The O Level completion-year question separately selects the applicable HSSC route. Retakes around the policy boundary may require confirmation.

Why did improving an O Level elective leave HSSC unchanged?

For the specified new science-group route, those electives are not counted in HSSC marks. They can still change the separate O Level percentage. The result breakdown identifies excluded subjects.

Are grades stored or sent anywhere?

This calculator processes grades in your browser and does not store them or send them to a server. Downloading or printing is optional. Other website services follow the site’s privacy policy.

Official sources and review date

Reviewed 5 November 2026 against the official conversion tables for 2021–2026 and the February 2026 notification. Future-year A* values are not forecast.

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