Here’s a clear, age-based overview of normal blood pressure for children, adolescents, and adults. Blood pressure is measured in mmHg (millimeters of mercury) and is written as systolic/diastolic (e.g., 120/80).
1. Adults (18 years and older)
- Normal: <120 / <80 mmHg
- Elevated: 120–129 / <80 mmHg
- Hypertension stage 1: 130–139 / 80–89 mmHg
- Hypertension stage 2: ≥140 / ≥90 mmHg
2. Adolescents (13–17 years)
- Normal: Systolic and diastolic below the 90th percentile for age, sex, and height.
- Rough guideline: ~110–120 / 70–80 mmHg
3. Children (6–12 years)
- Normal: Generally 95–110 / 55–75 mmHg
- Exact normal values vary by age, sex, and height percentile. Pediatric blood pressure charts are used for precise assessment.
4. Toddlers and Young Children (1–5 years)
- Normal: Approximately 90–105 / 55–70 mmHg
5. Infants (0–12 months)
- Normal: About 85–100 / 35–65 mmHg
Notes
- Blood pressure increases gradually with age.
- “Normal” for children is percentile-based because their sizes vary widely. Doctors use growth charts.
- Lifestyle, activity, stress, and measurement technique can affect readings.
- Always confirm elevated readings with repeated measurements.
If you want, I can make a table of average blood pressure for each year from birth to adulthood, which makes it very easy to reference quickly.
Do you want me to make that table?
