For adults age 18+, normal blood pressure is generally:
| Age | Normal BP |
|---|---|
| 18–39 | Less than 120/80 mmHg |
| 40–59 | Less than 120/80 mmHg |
| 60+ | Less than 120/80 mmHg |
Adult categories do not change by age: normal is <120 systolic and <80 diastolic; elevated is 120–129 and <80; hypertension starts at 130/80. (www.heart.org)
For children and teens, “normal” depends on age, sex, and height, not a single number. A pediatric BP calculator or your clinician should interpret it. (Baylor College of Medicine)
A reading over 180/120 is urgent, especially with chest pain, shortness of breath, weakness, vision changes, or trouble speaking. (www.heart.org)
