Blood pressure naturally changes with age, so “normal” isn’t the same for a child, adult, or senior. Here’s a detailed breakdown based on widely accepted guidelines:
1. Children and Adolescents (0–17 years)
Blood pressure in children depends on age, sex, and height percentile, so it’s usually given as a range. Approximate averages:
| Age | Systolic (top #) | Diastolic (bottom #) |
|---|---|---|
| Newborn (0–1 mo) | 60–90 mmHg | 20–60 mmHg |
| Infant (1–12 mo) | 87–105 mmHg | 55–66 mmHg |
| Toddler (1–3 yrs) | 95–105 mmHg | 53–66 mmHg |
| Preschool (4–5 yrs) | 95–110 mmHg | 56–70 mmHg |
| School-age (6–12 yrs) | 97–120 mmHg | 57–76 mmHg |
| Teenager (13–17 yrs) | 110–135 mmHg | 65–85 mmHg |
Pediatric blood pressure is often plotted on percentile charts, since exact “normal” depends on growth.
2. Adults (18–59 years)
The American Heart Association defines normal adult blood pressure as:
- Normal: 90–120 / 60–80 mmHg
- Elevated: 120–129 / <80 mmHg
- High (Hypertension Stage 1): 130–139 / 80–89 mmHg
- High (Hypertension Stage 2): ≥140 / ≥90 mmHg
Adults should have annual checkups to monitor blood pressure, as hypertension can be silent.
3. Older Adults (60+ years)
- Normal systolic may increase slightly with age due to arterial stiffness: 120–140 mmHg is often considered acceptable if diastolic stays under 90 mmHg.
- Excessively low diastolic (<60 mmHg) in seniors can be risky, leading to dizziness or poor organ perfusion.
Key Points
- Blood pressure readings should be taken seated, rested, with the arm at heart level.
- One reading isn’t enough—trends matter.
- Lifestyle (diet, exercise, sleep, stress) affects blood pressure significantly at any age.
If you want, I can make a simple chart of “normal blood pressure by age” from birth to elderly that’s easy to reference at a glance. It’s a handy guide to keep at home. Do you want me to make that?
