Standard Score / Percentile Calculator
Estimate a standard score and percentile from a raw score, mean, and standard deviation.
What is a Standard Score?
A standard score shows how far a raw score is from the mean, in standard-deviation units, rescaled to a common reference point. Percentile is estimated from the normal distribution assumption.
Generic statistical estimate using the normal distribution assumption โ does not reflect official exam-specific scaling tables, which can differ.