Choosing between a state school and a private school is one of the biggest decisions families face. Both sectors have genuine strengths — and genuine limitations. This guide cuts through the noise with a balanced, evidence-based comparison to help you make the right call for your child.
Last updated: April 2026 · 11 min read
Before diving into the detail, here is a side-by-side snapshot of how state and private schools compare across the factors that matter most to families.
State Schools
Private Schools
Neither column is inherently “better.” The right choice depends on your child's personality, your location, and your family's financial situation. Let's unpack each factor in turn.
Class size is one of the most frequently cited differences. The average state school class contains 27 pupils, while private school classes typically hold between 12 and 18. Smaller classes mean more individual attention, quicker feedback on work, and fewer opportunities for pupils to “fall through the cracks.”
However, class size is not the whole story. The pupil-to-teacher ratio in state schools is roughly 17:1, compared with around 9:1 in private schools. The difference is smaller than class sizes alone suggest, because state schools employ teaching assistants, SEND coordinators, and intervention staff who work alongside the class teacher.
Research from the Education Endowment Foundation suggests that reducing class size below 20 produces a modest positive effect, but the quality of teaching matters far more than the number of pupils in the room. An outstanding teacher with a class of 27 will typically outperform a mediocre teacher with a class of 12.
On raw exam results, private schools consistently outperform state schools. A-Level results at independent schools typically show a higher proportion of A*/A grades, and GCSE results follow a similar pattern.
But these figures require context. Private schools select their intake academically, admitting pupils who already show high ability. State schools serve the full range of abilities. Comparing raw results is therefore not an apples-to-apples comparison.
The government's Progress 8 measure gives a fairer picture for state schools, showing how much progress pupils make between Key Stage 2 and GCSE relative to pupils with similar starting points. Many state schools — including comprehensives and academies — score highly on Progress 8, demonstrating that they add significant value regardless of intake. Outstanding state schools regularly match or exceed private school results at GCSE and A-Level. You can compare results directly using our school comparison tool.
Private schools typically invest heavily in facilities — swimming pools, theatres, music schools, astroturf pitches, and dedicated science blocks. The breadth of extracurricular activities on offer tends to be wider, with sports such as rowing, fencing, and polo alongside a full music and drama programme.
That said, many state schools offer excellent extracurricular provision, particularly in larger academy trusts that pool resources across schools. After-school clubs, Duke of Edinburgh, Combined Cadet Force, school orchestras, and competitive sports teams are all widely available in the state sector.
The key difference is often time within the school day. Private schools frequently extend the school day to accommodate sport, music, and activities as part of the timetable, while state schools tend to run extracurriculars before or after lessons on a voluntary basis.
State schools are inspected by Ofsted (the Office for Standards in Education), while most private schools are inspected by the ISI (Independent Schools Inspectorate). Both use a four-point grading scale, but their frameworks differ.
Ofsted grades schools from Outstanding (1) to Inadequate (4) across four areas: quality of education, behaviour and attitudes, personal development, and leadership and management. ISI uses similar grades but applies its own criteria and reporting style. The two frameworks are not directly comparable, so an “Excellent” ISI rating is not equivalent to an Ofsted “Outstanding” in any formal sense.
One important distinction: Ofsted publishes all reports publicly and inspects on a regular cycle. ISI reports are also public, but the inspection cycle and methodology can differ. For a deeper understanding, see our Ofsted ratings explained guide.
State schools are free. Private schools are not — and the costs are substantial. Day fees at private schools range from £12,000 to £22,000 per year, while boarding fees run from £30,000 to £48,000+. Over a full secondary education (Years 7–13), that adds up to £84,000–£154,000 for a day pupil or £210,000–£336,000 for a boarder.
For a detailed breakdown of boarding costs, including hidden extras and scholarship options, see our boarding school costs UK 2026 guide.
If your child is academically able, state grammar schools offer what many families consider the best of both worlds: selective entry, small classes relative to other state schools, strong results, and zero fees. Grammar schools are not available everywhere, but where they exist, they represent an outstanding option. Explore schools near you on our UK school directory.
There is no universally correct answer. The best school for your child depends on a combination of factors that only you can weigh up. Consider the following:
Your child's learning style
Some children thrive in larger, more diverse environments; others benefit from the individual attention of a smaller school. Visit both types and observe how your child responds.
Local school quality
An outstanding state school on your doorstep may be a stronger option than an average private school 30 miles away. Check Ofsted reports and results before assuming private is better.
Financial sustainability
Private school is a long-term commitment. Ensure you can sustain fees for the full duration without financial strain. Factor in annual fee increases of 3–5% and hidden extras.
Extracurricular priorities
If your child has a specific talent in music, sport, or drama, compare what each school offers in that area. Sometimes a state school with a specialism outperforms a private school in the same discipline.
Our how to choose a school guide walks you through a structured framework for making this decision with confidence.
Not necessarily. Private schools offer smaller classes and more facilities, but many outstanding state schools achieve comparable or superior academic results. Raw exam league tables favour private schools because they often select pupils academically. When you account for prior attainment using measures like Progress 8, the gap narrows significantly. The best school is the one that fits your child's needs, regardless of sector.
No. While private schools often have dedicated Oxbridge and university preparation programmes, university admissions depend on the individual student's grades, personal statement, and interview performance. Many universities now use contextual admissions that recognise achievement from state school pupils. Attending a private school is not a guarantee of entry to any university.
Grammar schools are state-funded selective schools that admit pupils based on the 11-plus exam. They offer many advantages associated with private schools -- small class sizes, strong academic focus, and excellent results -- without the fees. Competition for places is fierce, and they are only available in certain areas of England. They are often described as the 'best of both worlds' for academically able children.
State education is free, but there are still some costs. Uniform can run to £100-£300, school trips typically cost £20-£50 per outing (with optional residential trips costing more), and some schools ask for voluntary contributions toward materials or activities. These costs are modest compared to private school fees but can add up, especially for families with multiple children.
Yes. Children can move from state to private or vice versa at any age, though common transition points are at Reception (age 4-5), Year 3 (age 7-8), Year 7 (age 11-12), and Year 12 (age 16-17). Moving from private to state may require adjusting to larger classes, while moving from state to private usually involves an entrance exam. Give your child time to settle -- most adapt within a term.
In most professions, employers care about qualifications, skills, and experience rather than where you went to school. However, some research suggests that private school networks can provide advantages in certain competitive fields such as law, finance, and politics. These disparities are gradually decreasing as more employers adopt name-blind recruitment and focus on merit.
Ready to start comparing schools? These tools will help you research and shortlist options across both sectors: