KS2 SATs Scaled Scores Explained

When your child's KS2 SATs results arrive, they come as numbers like 103 or 98 rather than the marks or percentages you might expect. These numbers are SATs scaled scores, and they can feel a little mysterious at first. This friendly guide explains what a scaled score is, what the number 100 means, and how to read your child's results calmly and kindly.

What is a scaled score?

A scaled score is a way of reporting a SATs result on a fixed, steady scale instead of as a raw mark. When your child sits a test, it is first marked to give a raw mark, which is simply the number of marks they scored out of the total available. That raw mark is then converted into a scaled score.

Why convert it at all? Because tests vary slightly in difficulty from one year to the next. Converting raw marks to a scaled score keeps the meaning of the result steady, so a particular scaled score means the same thing this year as it did last year, and children are not disadvantaged if one year's paper is a touch harder.

After all the children across the country have taken the tests, the Standards and Testing Agency publishes a conversion table for that year. Each possible raw mark is matched to a scaled score. So the journey of a result looks like this:

• Your child sits the test and it is marked, giving a raw mark out of the total.
• The official conversion table for that year is applied.
• The raw mark becomes a scaled score between 80 and 120.

The 80 to 120 scale and what 100 means

The KS2 scaled scores scale runs from a lowest reported score of 80 to a highest of 120. Sitting right in the middle is the most important number of all: 100.

A scaled score of 100 is the expected standard. Think of 100 as the marker the whole scale is built around. A score of 100 or above means a child has met the expected standard in that subject, and a score of 99 or below means they have not yet met it.

It helps to know that 100 has long been the marker for the expected standard, even though the raw marks needed to reach it can shift slightly from year to year. That is simply the conversion table doing its job. Because the figures are confirmed each year, the meaning of scaled score 100 sats is best checked on GOV.UK, where it has consistently meant the expected standard, reached.

The expected standard explained

So what is the expected standard SATs results refer to? It is the level the Department for Education expects a child to have reached by the end of Key Stage 2 in reading, in maths, and in grammar, punctuation and spelling. On the scaled score scale, that expected standard has historically been set at 100, and you can confirm the current figure on GOV.UK.

The single most reassuring thing to hold onto is this: the expected standard is not a pass or fail mark. SATs are not an exam your child can fail. The expected standard is a national benchmark used to understand how children are doing overall, and a child sitting a little below it is still learning well, just not yet at that particular point in that particular subject.

Children develop at their own pace. A score of 98 is not a disappointment; it is a snapshot of a few mornings in May, and there is plenty of learning still to come.

How SATs scaled scores differ from a percentage or a grade

A common worry is reading a scaled score as though it were a percentage or a school grade. It is neither, and seeing the difference takes a lot of the pressure away.

• It is not a percentage. A scaled score of 100 does not mean 100 per cent, and 80 does not mean 80 per cent. The numbers simply sit on the 80 to 120 scale.
• It is not a grade. There are no A to E style grades in KS2 SATs, and no class ranking. The result tells you whether the expected standard was met, nothing more.

Keeping this in mind makes SATs results explained for parents far simpler. You are looking for one thing first: did your child meet the expected standard of 100? Everything else is gentle detail.

Reading your child's results without worry

When the results come home, it is natural to feel a flutter of nerves. Here is a calm way to read them that keeps the focus where it belongs, on your child rather than the number.

• Start with the expected standard. Note whether each subject reached 100 or thereabouts, then move on.
• Look for strengths. Perhaps reading shone, or grammar came on well. Name those out loud.
• Talk about effort, not just outcome. "You worked so steadily this year" lands far better than any figure.
• Keep perspective. These are a few tests on a few mornings, not a measure of who your child is.

If your child is a little below the expected standard in grammar, punctuation and spelling, gentle, regular practice over time is the kindest way forward. Our guide on how to help your child revise for SATs is full of low-pressure ideas, and our explainer on what the SPaG test is shows exactly what that paper involves.

What results do and do not tell you

Scaled scores are useful, but they have honest limits. They do tell you whether your child met the expected standard in each tested subject, give a rough sense of their strengths, and help schools plan support. They do not measure how creative, kind, curious or hard-working your child is, how they will get on at secondary school, or anything about writing, which teachers assess across the year rather than in a scaled-score test.

In other words, the year 6 sats results meaning is real but narrow. The numbers capture a slice of academic performance on a handful of mornings, and nothing more. The whole, wonderful child sits well beyond them.

Because the exact raw marks behind each scaled score are set each year and can change, it is always best to check the current figures on GOV.UK rather than relying on an older number you may have seen.

Where to find official guidance on GOV.UK

The most reliable source for everything to do with scaled scores is GOV.UK. Search for "scaled scores at key stage 2" to find the official explanation, and look for the assessment and reporting arrangements for the relevant year. The conversion tables are published there too, usually after the tests have been taken.

If you would also like to know when results arrive and how the wider testing window works, our guide to KS2 SATs dates 2027 sets out what is officially known and points you back to GOV.UK to confirm. Treating the official pages as your single source of truth, alongside what your child's school tells you, will keep you both accurate and reassured.

How SATS LION helps

SATS LION turns Year 6 grammar, punctuation and spelling practice into a friendly game, Word Mage Academy, so building confidence feels like play rather than pressure. Short, gentle sessions follow the England KS2 curriculum your child is already learning, helping skills grow steadily in the run-up to SATs. If you would like to see how it works, take a look at our features for parents.