About School Attendance Calculator UK

What the site does

The site combines a mobile-first attendance calculator with plain-English guides and official resource links. The goal is to help people understand what a percentage means in days, sessions and real-world context.

That includes current attendance estimates, future absence impact, recovery planning, worked examples and background guides on common attendance questions.

Who maintains the site

The site is independently maintained in the UK by a software developer with experience building education and school-support software. It is published as an independent web resource rather than as a school, MIS or government service.

The aim is to explain the maths clearly and calmly, not to overclaim authority or present unofficial estimates as if they were a school-held record.

Who it is for

The content is written mainly for parents and carers, but it can also be useful for attendance teams, pastoral staff and school colleagues who want a quick explanation to support a conversation.

It is especially useful when someone has been given a percentage and wants to turn that number into missed days, missed sessions or a more understandable benchmark.

How the estimates work

The calculators use common UK attendance assumptions, including about 190 school days in a full year and about 380 sessions where schools record morning and afternoon attendance separately.

These assumptions are practical shortcuts for explanation, not official records. Exact figures can differ because of school calendars, part-time timetables, partial absences and changes to attendance coding.

The main formula is attended time divided by possible time, multiplied by 100. The methodology page explains when to use days, when to use sessions and why year-to-date projections should be treated carefully.

That methodology is visible on the site so users can see the assumptions, limits and worked examples instead of treating the calculators as a black box.

Important limitations

This site gives general information and estimates only. It cannot confirm whether an absence will be authorised, whether a penalty notice applies, or what action a school or local authority will take in an individual case.

When decisions matter, users should check the school record, school policy, local authority information and current official guidance.

Editorial approach and review

The aim is to publish careful, plain-English explainers that help users sense-check attendance maths before relying on it. Content is reviewed manually and updated when assumptions, guidance links or page wording need correction.

Where a topic depends on official or local interpretation, the site states that clearly and points users back to school records, school policy and official guidance instead of pretending to make the decision for them.

Substantial pages show a reviewed note so users can see when the content was last checked and how it should be used alongside official sources.

Why the site is independent

The site is not run by the Department for Education, a local authority, a school, academy trust or an MIS provider. It is intended to sit alongside official guidance by making the maths and common assumptions easier to understand before or alongside a conversation with school.

It is maintained in the UK as an independent publisher website and does not claim any school, local authority, DfE or government affiliation.

Contact and corrections

Questions about the website, broken links or suggested corrections can be sent to support@schoolattendancecalculator.co.uk.

If you are reporting a correction, include the page URL and a short description of what looks inaccurate or outdated so it can be checked quickly.

If the question is about a child-specific attendance figure or decision, the site cannot verify that directly and users should contact their school for the authoritative record.