How School Distance Is Measured in the UK

For many families, school admissions shape where they can live. When a school receives more applications than it has places, it allocates places using published criteria — and distance from home to school is one of the most common deciding factors. Understanding exactly how that distance is measured helps you avoid costly assumptions.

Straight-line distance

The most common method is straight-line distance, often described as "as the crow flies". The authority measures a direct line between a point at your home and a point at the school, ignoring roads and paths. Our School Distance Calculator uses this method, applying the Haversine formula to account for the curvature of the Earth.

Straight-line distance is popular because it is simple, consistent and hard to dispute. The downside is that it can feel unfair: two homes the same straight-line distance from a school might have very different real journeys if a river, railway or main road sits between one of them and the school.

Walking-route distance

Some authorities instead measure the shortest available safe walking route along roads and footpaths. This better reflects the journey a child would actually make, but it is more complex to calculate and can change if paths open or close. A walking route is almost always longer than the straight-line distance between the same two points.

Reference points matter

Beyond the method, the exact points being measured make a difference. Authorities may measure from a defined point at your address to a defined point at the school, such as the main entrance. A few metres can matter in a heavily oversubscribed school, so the precise reference points are always set out in the admissions policy.

Distance is only one criterion

Even where distance is used, it usually sits below other criteria in priority order. Common factors that come first include children in care, those with an education, health and care plan, siblings already at the school, and faith requirements for faith schools. Distance often acts as the tie-breaker once those are applied.

This matters most for selective and heavily oversubscribed schools. If you are planning around a specific school — for example when planning a move near Lawrence Sheriff School in Rugby or considering Warwickshire grammar schools more broadly — the entrance test and published criteria come first, and distance only enters the picture for applicants who already qualify.

What to check before you rely on distance

• The measuring method the authority uses (straight-line or route).
• The exact reference points at home and school.
• The full order of admissions criteria.
• Recent cut-off distances, as a rough guide only.
• Application deadlines and how to apply.