There isn’t a separate “normal” blood-pressure number for every adult age. For adults, the same basic threshold is used across age groups. (professional.heart.org)
🩺 Normal blood pressure by age
| Age | Generally considered normal |
|---|---|
| Children <13 | Depends on age, sex, and height; below the 90th percentile is considered normal |
| 13–17 | <120/80 mmHg |
| 18–39 | <120/80 mmHg |
| 40–59 | <120/80 mmHg |
| 60–79 | <120/80 mmHg |
| 80+ | There isn’t a separate universal “normal” number; treatment targets are individualized |
For children under 13, you shouldn’t use the adult 120/80 cutoff because normal BP varies substantially with growth and height. (AAP Publications)
What do the adult numbers mean?
- Normal: <120 / <80
- Elevated: 120–129 / <80
- Stage 1 high BP: 130–139 or 80–89
- Stage 2 high BP: ≥140 or ≥90
- Very high: >180 and/or >120 — particularly concerning if accompanied by chest pain, shortness of breath, weakness, vision changes, or difficulty speaking. (www.heart.org)
Example: A reading of 118/76 is in the normal range, while 135/85 falls into stage 1 hypertension.
One reading doesn’t necessarily diagnose hypertension. Blood pressure naturally fluctuates, so repeated properly measured readings are more useful. (American Heart Association)
If you give me your age and your blood-pressure reading (for example, 145/90), I can tell you exactly which category it falls into.
