The IGCSE Grading System Explained: A*,G vs 9-1 Scales

The IGCSE grading system can look confusing at first glance. Some students receive an A*, others a 7, and both may be studying the same subject. That happens because two official scales exist side by side, and your school's region and exam board determine which one appears on your certificate.

The IGCSE grading system is the set of achievement levels Cambridge International and other approved boards use to report student performance in IGCSE examinations, covering two scales: the traditional A* to G alphabetical scale and the newer 9 to 1 numerical scale. Both scales are recognised as equivalent by universities in the UK, UAE, and across the world.

What is the traditional A* to G grading scale?

The A* to G scale is the original system used by Cambridge IGCSE and Edexcel IGCSE. It has been in place for decades and remains the most widely used scale in international schools across the Gulf, including those in Dubai, Abu Dhabi, and Riyadh.

The scale runs from the highest possible grade down to the lowest recorded pass, with an additional category for students who do not meet any threshold.

Cambridge International awards grades as follows. A* represents exceptional mastery of the subject, reserved for candidates who demonstrate performance well above the A boundary. A U grade means ungraded: the student did not meet the minimum threshold for grade G and receives no certificate grade.

Grades A* through C are broadly considered strong academic performance. Grade C sits at the boundary many schools and universities treat as a standard pass, though requirements vary by institution and programme.

What is the IGCSE 9 to 1 numerical grading scale?

The 9 to 1 scale is a newer format introduced primarily through Pearson Edexcel for its international GCSE and IGCSE qualifications. It mirrors the reformed GCSE grading used in England since 2017 and is increasingly common in schools following a British curriculum.

Grade 9 sits at the very top of the numerical grading scale. It was deliberately designed to reward only the absolute highest-achieving students in each cohort, distinguishing exceptional performance in a way the old A* boundary could not always do at scale.

Grade 1 is the lowest awarded grade. A U (ungraded) still applies when a candidate does not meet the minimum threshold for grade 1.

Many parents ask where grade 4 sits. Grade 4 is the standard pass on the 9 to 1 scale. A grade 5 is considered a strong pass. Universities and sixth forms typically set their own minimum requirements, but grade 4 and above is the widely accepted baseline.

How do the two scales compare?

The most common question Talimat's Academic Consultants receive from parents is whether a grade 7 is the same as an A. The short answer is yes. Cambridge International and Ofqual publish official anchor points that align the two scales directly.

The table below shows the official alignment between the A* to G and 9 to 1 scales, based on Cambridge International and Ofqual published guidance.

A* to G Grade	9 to 1 Equivalent	Performance Descriptor
A*	9 / 8	Exceptional to very high achievement
A	7	High achievement
B	6	Good achievement
C	4 / 5	Standard to strong pass
D	3	Approaching standard pass
E	2	Below standard pass
F / G	1	Minimum graded achievement

One nuance worth noting: the A* on the alphabetical scale maps to both grade 9 and grade 8 on the numerical scale. Grade 9 was created specifically to distinguish the very top performers within the A* band, so it sits slightly above the traditional A* boundary.

What counts as a passing grade at IGCSE?

There is no single universal pass mark, but there are widely accepted benchmarks. On the A* to G scale, grade C is the standard pass that most schools, universities, and employers recognise. On the 9 to 1 scale, grade 4 is the equivalent standard pass and grade 5 is the strong pass.

According to Cambridge International, students who achieve grade C or above (or grade 4 and above on the numerical scale) are considered to have demonstrated competency in the subject at IGCSE level.

For students aiming at competitive university programmes or top sixth forms, grade B or above (grade 6 on the numerical scale) is often the practical target. Our tutors regularly see students in Years 10 and 11 set their sights on A or A* grades once they understand exactly where the grade boundaries fall for their specific subjects.

How are IGCSE grade boundaries set?

Grade boundaries are not fixed percentages. Cambridge IGCSE sets them each session through a process of expert judgement combined with statistical analysis of the whole cohort's performance. This means the mark needed for an A* in one exam series may differ slightly from the previous year.

Edexcel follows a similar approach for its IGCSE and international GCSE qualifications. The boundary for each grade is determined after all scripts have been marked, which is why Cambridge publishes the Cambridge IGCSE grade boundaries document after results day each year, not before.

This can feel unsettling for students preparing for exams. The practical implication is that aiming for the highest possible raw mark, rather than a specific percentage, is always the right strategy. IGCSE tutoring that focuses on past-paper technique helps students maximise their mark rather than guess at a moving target.

Do universities treat both scales equally?

Yes. Universities in the UK, UAE, USA, Canada, and across Europe accept both the A* to G and the 9 to 1 scales as full equivalents. Admissions teams are well-versed in both systems. Whether your certificate reads A* or 9, the outcome for your application is identical.

For students applying to A-Level programmes or IB tutoring pathways in the Gulf region, sixth forms typically state their entry requirements in both scales. A school that asks for BBB on the A* to G scale will accept 665 on the 9 to 1 scale as the direct equivalent.

Students sitting Cambridge A-Levels after IGCSE will find that their IGCSE grades remain on their academic record and are often used as a predictor of A-Level performance. The scale used at IGCSE does not disadvantage any student during that transition.

How Talimat Can Help

Understanding the IGCSE grading system is the first step. Building the subject knowledge to reach the grade your child is aiming for is where online tutoring makes a measurable difference.

At Talimat, every student is matched with a subject-specialist tutor within ten minutes. Sessions are live and 1:1, structured around the specific exam board and syllabus your child is sitting, whether that is Cambridge IGCSE on the A* to G scale or an Edexcel programme on the 9 to 1 scale.

From the moment you sign up, your child is assigned a dedicated Academic Consultant who maps out a personalised study plan, tracks progress, and adjusts the focus as grade boundaries and exam dates approach. Mock exams with detailed feedback are built into the programme, so students know exactly where they stand before results day.

If you'd like to discuss your child's current grades and where they need to get to, contact us and we'll match you with the right tutor today.

Whichever scale appears on your child's certificate, the goal is the same: the strongest possible performance in every subject. The grading system is just the measure; the preparation is what moves the needle.