Work out blood pressure percentile for children instantly with clear inputs, formula shown and shareable results.
Converts a child's systolic reading into a percentile against the age, sex and height reference mean and standard deviation you supply from the AAP tables.
Percentile from z-score
z = (SBP - reference mean) / reference SD; percentile = 100 x Phi(z)
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
The AAP 2017 Clinical Practice Guideline tables list mean and 95th-centile systolic values by age, sex and height percentile.
The reference tables are lookup data rather than a formula, so the reference mean and SD are entered explicitly and the percentile maths is shown.