Normal Heart Rate Ranges for Children by Age

Pediatric Heart Rate Reference (Awake, Resting)

Age	Range (beats/min)
Newborn (0–1 mo)	100–180
Infant (1–12 mo)	100–160
Toddler (1–2 yr)	90–150
Preschool (3–5 yr)	80–140
School-age (6–10 yr)	70–120
Adolescent (11–17 yr)	60–100

Rates are lower during sleep (subtract ~10–20 bpm). Fever increases rate ~10 bpm/°C. Persistent tachycardia or bradycardia outside these ranges warrants evaluation.