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Score converter tool.

Convert standard scores, percentiles and more into clear bands for sharing with staff and parents.

Premium and Pro features are coming soon. You're welcome to explore all free tools now. We're putting the final pieces in place and will open paid plans shortly. Register your interest →

Dynamic score converter.

-3 SD-2 SD-1 SDMean+1 SD+2 SD+3 SD

Percentile: 50% of scores fall below this point

Z-Score: 0 standard deviations from the mean

Performance classification.

Standard Score

100
Average (85-114) - Within normal range (16th-83rd percentile)

Scaled Score

10
Average (8-12) - Typical performance range for age group

Percentile

50%
Average (16th-83rd percentile) - Performs similarly to the majority of same-age peers

Z-Score

0
Average (-0.9 to +0.9) - Within 1 standard deviation of the mean

T-Score

50
Average (40-59) - Within normal range (16th-83rd percentile equivalent)