Normal blood pressure ranges by age
Blood pressure changes with age — usually a little, sometimes a lot. Published averages can help you talk with a clinician. They are not a diagnosis, and Blood Snap does not classify your log as “normal” or “high” in the app.
This guide gives you a simple chart, what the two numbers mean, and caveats. If your readings concern you, talk to your doctor.
The two numbers, briefly
Every blood pressure reading is two numbers — for example, 118/76 mmHg.
- Systolic (top number): the pressure when your heart beats and pushes blood out.
- Diastolic (bottom number): the pressure when your heart rests between beats.
General ranges, by age
The numbers below are typical averages discussed in population summaries — not strict cut-offs and not what Blood Snap displays. Medication, time of day, stress, posture, and cuff fit all shift readings.
| Age | Typical systolic | Typical diastolic |
|---|---|---|
| 18–29 | 110–120 | 70–78 |
| 30–39 | 112–122 | 72–80 |
| 40–49 | 115–125 | 74–82 |
| 50–59 | 118–128 | 76–84 |
| 60–69 | 122–132 | 76–84 |
| 70+ | 125–135 | 74–82 |
For all adults, American Heart Association materials commonly describe below 120/80 mmHg as “normal,” 120–129/<80 as “elevated,” and 130/80 or higher as stage 1 hypertension (AHA, 2017). ESC/ESH 2023 uses related but not identical language. Your doctor applies the guideline that fits your region and history.
What to do with this information
Look at a trend of home readings, not a single check. Sit quietly, feet flat, arm at heart height. Log morning and evening blood pressure readings for your records or a clinic visit.
When to talk to your doctor
- Several home readings above 140/90 over a week, even at rest
- A single reading above 180/120 — same day
- Dizziness, headaches, or chest discomfort with high readings
Age is only one factor
Sex, medicines, kidney disease, pregnancy, and white-coat effect all matter. A “typical” row in a table is not your target. See also normal blood pressure for men and women and how to read a home blood pressure chart.
Blood Snap shows 7-day, 30-day, and 90-day charts of systolic and diastolic values you typed or confirmed. It does not color-code age brackets.
Log this in Blood Snap. Save systolic, diastolic, and pulse from your home blood pressure monitor, then export a PDF. The app charts numbers you entered; it does not apply AHA categories to your diary.
Educational information with public guideline citations. Not medical advice and not a diagnosis. Blood Snap is a personal wellness diary — not a medical device, blood pressure machine, glucometer, or CGM. Always follow your clinician's advice.