Rank #1
Queen Elizabeth's School, Barnet
Queen Elizabeth's School, Barnet, Queen's Road
Ofsted: OutstandingTop 5% A-level resultsBoys onlyCompetition: Very High
A-level results: 83.8% AAB or better
Assessment: GL Assessment
A-level results ranking
Best grammar schools by A-level results
This sixth-form ranking uses the published A-level measure: the share of students achieving AAB or better.
Updated 11 May 2026 Uses published 2025 A-level measures 158 schools
How ranking works
How this page ranks schools
This page uses one published A-level measure
Schools are ordered by the published share of students achieving AAB or better at A level.
We compare schools here using one published sixth-form measure:
What To Keep In Mind
This page stays strictly sixth-form focused, so GCSE data is not used in the order.
A school needs published A-level results to receive a rank on this page.
What Matters Most
- 1100%
A-level results
This page uses the published share of students achieving AAB or better at A level.
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Showing 12 of 158 schools
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Rank #2
Wilson's School
Wilson's School, Mollison Drive
Ofsted: OutstandingTop 5% A-level resultsBoys onlyCompetition: Very High
A-level results: 79.3% AAB or better
Assessment: Sutton SET, Individual
Competition: 17.6 candidates per place
Rank #3
St Olave's and St Saviour's Grammar School
St Olave's and St Saviour's Grammar School, Goddington Lane
Ofsted: OutstandingTop 5% A-level resultsBoys onlyCompetition: Very High
A-level results: 78.5% AAB or better
Assessment: Individual
Rank #4
Colchester Royal Grammar School
Colchester Royal Grammar School, Lexden Road
Ofsted: Not yet ratedTop 5% A-level resultsBoys onlyCompetition: Very High
A-level results: 77.7% AAB or better
Assessment: CSSE
Rank #5
Pate's Grammar School
Pate's Grammar School, Princess Elizabeth Way
Ofsted: OutstandingTop 5% A-level resultsMixedCompetition: High
A-level results: 71.3% AAB or better
Assessment: GL Assessment
Rank #6
The Henrietta Barnett School
Henrietta Barnett School, Central Square, Hampstead Garden Suburb
Ofsted: GoodTop 5% A-level resultsGirls onlyCompetition: Very High
A-level results: 70.4% AAB or better
Assessment: GL Assessment
Rank #7
King Edward VI Grammar School, Chelmsford
King Edward VI Grammar School, Chelmsford, Broomfield Road
Ofsted: OutstandingTop 5% A-level resultsMixedCompetition: High
A-level results: 68.4% AAB or better
Assessment: CSSE
Rank #8
The Tiffin Girls' School
Tiffin Girls' School, Richmond Road
Ofsted: OutstandingTop 5% A-level resultsGirls onlyCompetition: Very High
A-level results: 67.0% AAB or better
Assessment: Individual
Rank #9
Tiffin School
Tiffin School, Queen Elizabeth Road
Ofsted: GoodStrong A-level resultsBoys onlyCompetition: High
A-level results: 66.7% AAB or better
Assessment: Individual
Rank #10
The Latymer School
Latymer School, Haselbury Road
Ofsted: GoodStrong A-level resultsMixedCompetition: High
A-level results: 63.2% AAB or better
Assessment: GL Assessment
Rank #11
Reading School
Reading School, Erleigh Road
Ofsted: OutstandingStrong A-level resultsBoys onlyCompetition: High
A-level results: 62.9% AAB or better
Assessment: FSCE
Competition: 7.2 candidates per place
Rank #12
Altrincham Grammar School for Girls
Altrincham Grammar School for Girls, Cavendish Road, Bowdon
Ofsted: OutstandingStrong A-level resultsGirls onlyCompetition: High
A-level results: 62.4% AAB or better
Assessment: GL Assessment
Competition: 7.3 candidates per place
Keep narrowing
Next checks for a strong sixth form
AAB rates are only the academic signal. The next useful checks are GCSE strength, subject availability, admissions route, and whether the journey works.
National view
Best grammar schools by GCSE results
Use this when Key Stage 4 strength matters alongside sixth-form results.
Explore
Comparison guide
How to compare grammar schools
A practical way to compare results, admissions, travel, and fit without leaning on one metric.
Explore
Tool
Compare schools
Put the schools you are still considering into one view.
Explore
How to read this page
Sixth form results by published A-level measure
This table is deliberately narrow. It ranks grammar schools by the published share of A-level students achieving AAB or better.
Subject choice, admissions route and daily travel decide whether a strong sixth-form result is relevant to your child.
FAQ
Frequently asked questions
What measure is used on this page?
This ranking uses the published share of students achieving AAB or better at A level.
How is this different from the GCSE ranking?
The GCSE page stays focused on Key Stage 4 measures. This page is sixth-form only, so it is more useful when post-16 academic outcomes matter most.
Does this mean these schools are the best fit for sixth form?
Not by itself. A-level strength is useful, but it does not tell you about admissions, travel, subjects offered, or whether a school feels right for your child.
Which details matter after the A-level order?
Sixth-form subjects, admissions route, travel time and school fit matter because A-level strength alone does not tell you whether the school is a workable post-16 option.
Keep exploring
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School
Queen Elizabeth's School, Barnet
A boys grammar school in Barnet with a long-standing academic reputation and a highly selective Year 7 route.
School
Wilson's School
A selective boys grammar school in Wallington, Greater London, serving ages 11-18 with a sixth form and around 1,312 pupils on roll.
School
St Olave's and St Saviour's Grammar School
A selective boys grammar school in Orpington, Greater London, serving ages 11-18 with a sixth form and around 1,085 pupils on roll.