Work out salary percentile instantly with clear inputs, formula shown and shareable results.
Converting a salary into a percentile requires the market mean and standard deviation. The z-score measures how many standard deviations you sit from the mean, and the normal distribution then translates that into the share of the market you are paid above.
Standard score
z = (Your salary - Market mean) / Market standard deviation
Percentile
Percentile = 50 x (1 + erf(z / sqrt(2)))
They are right-skewed, so the true percentile at the top end is usually a little higher than the normal model suggests. Log-normal fits better.
Yes. A benchmark from 20 respondents has wide confidence intervals; treat percentile precision from small samples with caution.