Know what your child’s 11+ score is really worth
Calculators and school data for the Essex and Kent 11+, built from the figures the exam boards, councils and schools publish, and checked against real results.
Our Essex calculator was checked against CSSE’s own results for all 5,103 children who sat the 2026 test. Our biggest disagreement anywhere is 0.54 of a point.
I have my child’s marks
Essex: CSSE calculator
The official calculation, using the formula and the year’s figures CSSE publishes.
Kent Test calculator
An honest range, because GL Assessment keeps its figures confidential and a single number would be made up.
I’m choosing schools
Kent grammar schools
All 32, and how each one picks. At five, the score decides everything; at most of the rest, where you live matters once you qualify.
Essex CSSE schools
All 10 CSSE schools, with the score of the last place actually offered at each.
Every school page shows how many families put it first and how many got a place, from the Department for Education’s own figures.
I’m a tutor
Put the CSSE calculator on your own website, free. It updates itself when CSSE publishes new figures, and no data about a child leaves the visitor’s browser. For tutors →
The same mark, a different score
35 marks in English was worth 114.2 in 2020 entry and 100.0 in 2026 entry. Once CSSE adds the papers and multiplies by 1.5, that gap is 21.3 points, against a qualifying score of 303.
Both figures use CSSE’s own published constants. That is why a practice mark can’t be read on its own, and why every calculator here asks which year. How the CSSE calculator was checked →
Why our numbers have sources on them
We tested six free CSSE score tools. None publishes the figures it calculates with, so no parent using them can check the answer. Six CSSE score tools, tested →
Everything here is either traceable to the exam board, the council or the school, or labelled an estimate with its assumptions listed. About this site →