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KS2 SATs scaled score converter

There's no fixed pass mark for KS2 SATs — a scaled score of 100 or more means the expected standard was met, but the raw mark needed for 100 changes every year.

Enter a raw mark for any year from 2016 to 2025 and see the exact scaled score, using the official DfE conversion tables.

Enter a raw score to see the scaled score

In 2025, a raw score of 58 or more in Maths was needed to meet the expected standard (out of 110).

Why there's no fixed pass mark

KS2 SATs papers change every year, and no two years are exactly the same difficulty. If a fixed raw-mark pass mark were used, a slightly harder paper would fail more children through no fault of their own. Instead, the STA sets the raw-to-scaled conversion after marking is complete each year, calibrated so that a scaled score of 100 always represents the same expected standard — however that year's raw marks happened to fall.

That's why the raw score needed for 100 moves around from year to year — sometimes by several marks — even though what "100" means never changes. See the full results guide for what expected standard and greater depth mean in practice.

Frequently asked questions

What raw mark do I need for a scaled score of 100?
It changes every year, because the papers themselves vary slightly in difficulty — the STA recalculates the threshold annually. Select a year and subject above to see the exact raw score needed for that year.
Why is there no fixed pass mark for SATs?
Because papers aren't identical from year to year, a fixed raw-mark pass mark would make some years' tests effectively harder or easier to pass. The scaled score system re-calibrates each year's raw marks so that 100 always represents the same expected standard, regardless of that year's exact paper difficulty.
Where do these conversion tables come from?
Directly from the official Standards and Testing Agency (STA) scaled score conversion tables published by the Department for Education after each year's tests.

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