You get 60% on a GCSE practice paper. Is that a grade 4, a grade 6 or a grade 8?
The percentage alone cannot tell you. You need to know the subject, exam board, tier and exam series—and whether your score covers the whole qualification.
The essentials
There is no fixed percentage for each GCSE grade. The useful question is: "How many marks do I need for my course, and where can I gain them?"
This guide explains how to find the correct boundaries, calculate your grade and turn your practice results into a revision plan.
What are GCSE grade boundaries?
A grade boundary is the minimum mark needed to receive a particular grade. Imagine a qualification with these boundaries:
| Grade | Minimum mark out of 200 |
|---|---|
| 7 | 140 |
| 6 | 120 |
| 5 | 100 |
| 4 | 80 |
These figures are invented to explain the process.
Worked example
Reading a boundary table.
- If you score 128, you reach the grade 6 boundary but not the grade 7 boundary. Your grade is 6.
- If you score 140, you receive grade 7. You do not need to go one mark beyond the boundary.
- If you score 139, you remain at grade 6. Being close does not automatically round your grade up.
What percentage do you need for each GCSE grade?
There is no reliable universal table saying "70% is a grade 7" or "90% is a grade 9". To calculate the boundary percentage for your qualification, use:
The formula
Boundary percentage = boundary mark ÷ maximum qualification mark × 100
Worked example
Converting a boundary. A boundary of 75 out of 160 is 75 ÷ 160 × 100 = 46.875%.
That is approximately 46.9%, but the actual threshold remains 75 marks.
Watch out
When checking a result, use the published mark boundary: rounded percentages can hide a one-mark difference.
Real example: AQA GCSE Maths boundaries in June 2026
Both tiers were marked out of 240 overall.
| Grade | Foundation minimum marks | Foundation percentage | Higher minimum marks | Higher percentage |
|---|---|---|---|---|
| 9 | Unavailable | — | 219 | 91.3% |
| 8 | Unavailable | — | 192 | 80.0% |
| 7 | Unavailable | — | 166 | 69.2% |
| 6 | Unavailable | — | 131 | 54.6% |
| 5 | 187 | 77.9% | 97 | 40.4% |
| 4 | 154 | 64.2% | 63 | 26.3% |
| 3 | 115 | 47.9% | 46 | 19.2% |
| 2 | 76 | 31.7% | Unavailable | — |
| 1 | 38 | 15.8% | Unavailable | — |
Percentages are calculated from AQA's published marks and rounded to one decimal place. See every series on Starley's AQA GCSE Maths 8300 grade boundaries page.
This shows why "Is 50% a pass in GCSE Maths?" is incomplete. In this series, 50% meant 120 out of 240. That corresponded to a grade 3 on Foundation and a grade 5 on Higher.
Key point
The papers have different levels of demand. A lower percentage boundary on Higher does not make it an easier route to a pass.
Discuss your tier with your teacher using evidence from several papers. Foundation's highest available grade is 5. Higher does not offer grades 1 or 2, so students below its grade 3 boundary receive U.
What do GCSE grades 9–1 mean?
GCSEs in England use grades 9 to 1, with 9 the highest. U means ungraded.
| Grade | What it means |
|---|---|
| 9 | Highest available grade |
| 8 | Above grade 7 |
| 7 | Its lower boundary is comparable to the lower boundary of the old A |
| 6 | Above a strong pass |
| 5 | Commonly described as a strong pass |
| 4 | Commonly described as a standard pass; its lower boundary is comparable to the old C |
| 3–1 | Awarded grades below the standard-pass threshold |
| U | Ungraded |
The old letter grades and current number grades do not match one for one (see Ofqual's GCSE 9 to 1 grade scale explained). Avoid precise conversions such as "grade 6 always equals a B". For more detail, see GCSE grades explained.
For progression, check your intended course's actual requirements. A sixth form might require a grade 4 in English and Maths but a grade 6 or 7 in the subject you want to study.
Note
This guide focuses on England's 9–1 GCSEs. Other UK systems differ; Northern Ireland students, for example, may receive different grading scales depending on the awarding organisation.
Why do GCSE grade boundaries change?
Two papers can test the same course without being equally difficult. One might contain a demanding application question. Another might make it easier for students to demonstrate what they know.
Exam boards use statistical evidence and senior examiners' judgements about students' work to maintain comparable standards across years. Boundaries are set after the exams, when marking is nearly complete.
Broadly, harder assessments can lead to lower boundaries; easier assessments can lead to higher boundaries.
This also explains why boundaries differ between exam boards. A lower boundary does not automatically mean an easier qualification. The questions may have been harder.
There is no fixed quota of students who must fail, and no fixed cap on how many can receive each grade.
Remember
If you are preparing for 2027, the exact boundaries are not known in advance. Published 2026 boundaries can help you interpret practice results, but they cannot guarantee your future grade.
Two percentages you should keep separate
These statistics answer different questions:
| Statistic | What it tells you |
|---|---|
| Boundary percentage | The proportion of available marks needed for a grade |
| Percentage of entries awarded a grade | How common that grade was among exam entries |
If 5% of entries receive grade 9, that does not mean the grade 9 boundary is 5%. For a real example, see what percentage of students get a 9 at GCSE Maths.
How to calculate your GCSE grade from marks
1. Identify your exact qualification
Before using a boundary table, check:
- Exam board: AQA, Pearson Edexcel, OCR or another board.
- Subject and qualification code.
- Tier: Foundation or Higher, where applicable.
- Exam series: for example, June 2026.
- Option or route: if your subject offers different combinations.
For AQA, 8300 is GCSE Maths and 8700 is GCSE English Language. Check your paper's front cover or ask your teacher if you are unsure.
2. Use the overall qualification boundary
Boundary documents may show both:
| Boundary type | What it is for |
|---|---|
| Subject or qualification boundaries | Used for the final grade |
| Notional component boundaries | Illustrative boundaries for individual papers |
Watch out
For a linear GCSE, do not average your paper grades to calculate your final grade. Use the combined qualification mark, applying any required scaling, and compare it with the overall boundary. AQA explicitly labels its component boundaries as illustrative.
3. Check whether components are weighted
Some qualifications scale marks so that each assessment contributes the correct share of the final result. Follow the specification's assessment rules.
Worked example
Weighted components. For an invented course with an exam worth 60% and coursework worth 40%, suppose you score 70% in the exam and 80% in coursework. Your weighted percentage is:
(70 × 0.60) + (80 × 0.40) = 74%
Common mistake: simply averaging 70% and 80% would give 75%, which is wrong for that weighting.
For a real qualification, use the board's scaling and rounding rules rather than assuming this simplified calculation applies.
Worked example: three Maths papers
Worked example
A full Higher set. Suppose you complete the three AQA June 2026 Higher Maths papers under timed conditions:
| Paper | Your mark |
|---|---|
| Paper 1 | 42/80 |
| Paper 2 | 48/80 |
| Paper 3 | 46/80 |
| Total | 136/240 |
Your percentage is 136 ÷ 240 × 100 = 56.7%. Using the published table above, this corresponds to grade 6 for that series.
To reach its grade 7 boundary (166), you would need 30 additional marks across the set—an average improvement of 10 marks per paper.
You can gain those marks unevenly. You do not need each paper to reach a separate grade 7 threshold.
Key point
That gives you something useful to work with: a specific mark gap, rather than a vague feeling that you need to "get better at Maths".
How to use grade boundaries to improve your revision
Checking your grade is only the first step. The next step is working out which marks you can realistically recover.
Calculate your mark gap
The formula
Mark gap = target-grade boundary − your current total
Then inspect your marked answers.
Ask yourself
- Did I lose marks because I did not know the content?
- Did I understand the topic but make calculation errors?
- Did I leave out steps that the mark scheme rewards?
- Did I misunderstand what the question asked?
- Did I run out of time?
These problems need different solutions. Another full paper will not automatically fix them.
Build your plan around your lost marks
For the Maths example, a possible improvement plan might look like this:
| Source of lost marks | What to practise | Example target across the set |
|---|---|---|
| Errors with fractions and negative numbers | Short mixed questions, checking calculations | 6 marks |
| Incomplete algebra methods | Showing each step and checking the mark scheme | 8 marks |
| Unit and scale conversions | Conversions within exam questions | 6 marks |
| Questions left blank through poor timing | Timed sections and returning to difficult questions | 10 marks |
These are planning examples, not promised gains. Choose targets from your own papers. Thirty extra marks may feel more achievable when you can identify where they might come from.
Quick tip
If most of your lost marks involve content you have never understood, spend time learning it before attempting another timed paper. For a fuller approach, see how to revise GCSE Maths effectively.
Aim beyond the minimum
Reaching a historical boundary once is encouraging. Reaching it repeatedly, with room to spare, gives stronger evidence that you are ready.
You might choose a practice target several marks above the boundary. The size of that margin should reflect how variable your results are.
Note
It is a personal revision target, not an official rule or a guarantee against future boundary changes.
Use the correct boundary for each practice set
When practising papers from different years, use each set's own boundaries. Track both your total and your distance from your target:
| Practice set | Total mark | Target boundary | Marks above/below target | Next step |
|---|---|---|---|---|
| A | 128 | 140 | −12 | Fix incomplete algebra methods |
| B | 141 | 148 | −7 | Improve timing |
| C | 149 | 145 | +4 | Retest recurring mistakes |
All figures in this tracking table are illustrative.
Your percentage tells you how many marks you earned. Your distance from the boundary tells you how that performance relates to your target grade on that set.
Can you use official grade boundaries for mocks?
It depends on how the mock was made.
| Type of assessment | How to interpret it |
|---|---|
| Complete, unchanged past-paper set from one series | That series' boundaries can provide a useful estimate |
| One paper from a multi-paper qualification | A component boundary may give context, but cannot establish the overall grade |
| Questions combined from different years | Use your teacher's grading guidance; no single official series boundary fits |
| Short topic test | Use it to identify strengths and gaps rather than assign a final GCSE grade |
Remember
A strong score on a familiar topic test is useful. But it does not yet show whether you can maintain that performance across the whole course under exam conditions. Starley's past papers give you complete sets to practise with.
How do Combined Science grade boundaries work?
GCSE Combined Science awards two grades, such as 5–5, 5–4 or 4–4. Use the double-award boundary table for your exact course and tier: for example, Starley's AQA Combined Science: Trilogy page.
The double grade comes from the overall Combined Science result.
Watch out
Your first grade does not represent Biology and your second Chemistry. You should not calculate the award by averaging separate Biology, Chemistry and Physics grades. For the full scale, see GCSE Combined Science grades explained.
Where can you find official GCSE grade boundaries?
Start with your exam board's official pages:
Both publish June 2026 GCSE boundary documents. Check the qualification, series, subject and tier before using a row. For other boards, use their official grade-boundaries pages.
Starley's grade boundaries pages bring together official boundaries from AQA, Pearson Edexcel, OCR and Cambridge, by subject and series, with a calculator that turns your marks into a grade.
What if you are one or two marks below the next grade?
First, confirm your overall mark and the correct boundary with your teacher or exams officer.
Then ask whether they can obtain your marked script and check for a possible marking error. Access to scripts can help you decide whether to request a review.
Important
Being close to a boundary is a reason to discuss your result, not evidence that it was marked incorrectly. A review of marking checks for marking errors. It is not a request for extra marks because you nearly reached the next grade.
Your mark and grade can rise, fall or remain unchanged. Ask about deadlines, fees and consent requirements before proceeding; fees can apply per paper or component.
If your college place depends on the result, contact the college promptly and explain the situation while you seek advice.
Frequently asked questions
Is 70% a grade 7 at GCSE?
Sometimes, but it is not a universal rule. Check the boundary for your subject, board, tier and exam series.
Do you need 90% for a grade 9?
Not in every qualification. Use the published mark threshold for your course rather than a general percentage target.
Can you get a grade 9 without full marks?
Yes. Grade 9 does not require a perfect score. You should still aim to earn every mark you reasonably can.
Can one weak paper ruin your whole grade?
It affects your total, but stronger marks elsewhere can compensate. After a difficult paper, focus on the assessments still ahead of you.
Can you average your paper percentages?
Only if the components contribute equally and that calculation matches the qualification's rules. Adding the appropriate marks and applying any required scaling is safer.
Are predicted 2027 grade boundaries reliable?
They cannot be confirmed before the awarding process. Use historical boundaries to interpret past papers, and assess your readiness across several complete timed sets.
What should you do after checking a boundary?
Calculate your mark gap, identify three recurring causes of lost marks and practise those skills. Then try fresh questions without notes to check whether the improvement holds.
The most useful result of checking a boundary is knowing what to work on next.