Normal Blood Pressure Ranges for Newborns, Infants, and Toddlers

Blood pressure norms in children vary significantly by age, size, and sex. The values below are approximate systolic/diastolic ranges (mmHg) for healthy children at the 50th percentile height. Always interpret in clinical context.

Reference Ranges (Systolic/Diastolic)

Age Group	Systolic Range	Diastolic Range
Newborns (0–28 days)	60–90	30–60
Infants (1–12 months)	70–100	40–70
Toddlers (1–3 years)	80–110	50–80

Important Notes

• These are screening thresholds, not diagnostic cutoffs.
• BP should be measured with appropriate cuff size (bladder width ≥40% arm circumference, length 80–100%).
• Values >90th percentile for age/sex/height = elevated; >95th = hypertension.
• Always confirm elevated readings on ≥3 separate occasions.
• Oscillometric devices are common but auscultation is gold standard for diagnosis.

When to Refer

• Persistent BP ≥95th percentile.
• Symptomatic hypotension (syncope, dizziness) with systolic <5th percentile.
• Secondary causes suspected (renal, endocrine, cardiac, coarctation).

Use validated pediatric BP tables (e.g., AAP 2017 Clinical Practice Guideline) for precise percentiles based on age, sex, and height percentile.