Pediatric Blood Pressure Norms by Age (1–18 Years)

Normal blood pressure in children varies by age, sex, and height percentile. The table below shows approximate 50th–90th percentile ranges for systolic/diastolic BP (mm Hg) in boys at median height. Values are lower for girls and shorter children.

Age	Systolic (50th–90th %ile)	Diastolic (50th–90th %ile)
1–2 yr	85–105	45–65
3–5 yr	90–110	50–70
6–9 yr	95–115	55–75
10–12 yr	100–120	60–80
13–15 yr	105–125	65–85
16–18 yr	110–130	70–90

Hypertension definitions (AAP 2017):

• ≥130/80 mm Hg for ≥13 years (adult cutoff).
• ≥95th percentile for age/sex/height for <13 years.

Always confirm elevated readings on ≥3 visits. Use validated automated devices with correct cuff size. Consult a pediatrician for interpretation.