Pediatrics

Pediatric Vital Sign Ranges Calculator

Normal heart rate, respiratory rate and systolic blood pressure by age.

Reviewed by Alex G, BSN, RN, CEN, CCRN, CMC, NREMT-P · From the Reference tab of the app

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Formula

Minimum systolic BP (1–10 y) = 70 + (2 × age in years)

How it is used

• Ranges are approximate; trends and the child’s appearance matter more than a single number.
• A slowing heart rate in a sick infant or child usually means hypoxia, not improvement.
• Hypotension is a late sign of shock in children: treat tachycardia with poor perfusion before the pressure falls.

Same formula as the app. Open it in the web app.

Related one-pagers

• Pediatric Vital Signs and Drug Doses for EMSNational EMS model guideline ranges (4-5 and 5-6 years combined; pulse 80-140 at 4-5). Sleeping pulses run lower.
• Pediatric Assessment and Emergencies

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For education and exam preparation only. Follow your institution’s protocols. For education and exam preparation only. Verify results independently and follow your local protocols and medical direction. Not a substitute for clinical judgment.