See where your readings sit for your age group — automatically.
Cardilog logs every reading, compares it to your age-appropriate range, and flags trends before they become a problem.
Normal blood pressure for adults is below 120/80 mmHg at every age. Average readings do rise as you get older — from about 117/72 mmHg for men aged 18 to 24 to around 142/72 mmHg at 80 and beyond — but the clinical target does not change. The chart below shows average blood pressure by age and gender for every decade, and you can check your reading against your age group in seconds.
Blood Pressure Chart by Age and Gender
This blood pressure chart by age combines data from large US population studies (NHANES) into a single reference. Figures are average readings for each age group, shown separately for men and women — they are what people typically record, not targets to aim for.
| Age | Men (average) | Women (average) |
|---|---|---|
| 18 to 24 years | 117/72 mmHg | 110/68 mmHg |
| 25 to 29 years | 119/74 mmHg | 112/70 mmHg |
| 30 to 39 years | 122/76 mmHg | 116/72 mmHg |
| 40 to 49 years | 126/80 mmHg | 122/76 mmHg |
| 50 to 59 years | 131/82 mmHg | 128/80 mmHg |
| 60 to 69 years | 135/78 mmHg | 134/78 mmHg |
| 70 to 79 years | 138/74 mmHg | 139/74 mmHg |
| 80 and above | 142/72 mmHg | 143/72 mmHg |
The colours show which AHA category each average falls into — green is normal, yellow elevated, orange Stage 1, and red Stage 2 hypertension. Notice how typical readings drift into the red with age. Even so, whatever your age or gender, a consistent reading of 130/80 mmHg or higher counts as high blood pressure under AHA/ACC guidelines, and below 120/80 remains the healthy goal.
What Is Blood Pressure and Why Does It Matter?
Blood pressure measures the force your blood exerts on the walls of your arteries as your heart pumps. It is recorded as two numbers. The top number (systolic pressure) shows peak force when your heart beats. The bottom number (diastolic pressure) shows the force when your heart rests between beats.
High blood pressure (hypertension) forces your heart and arteries to work harder than they should. Over time this damages blood vessels, raising the risk of heart attack, stroke, and kidney disease. Low blood pressure (hypotension) can cause dizziness and fainting and, in severe cases, reduce blood flow to vital organs.
Blood Pressure Categories for Adults
The American Heart Association (AHA) and American College of Cardiology (ACC) define five blood pressure categories, reaffirmed unchanged in their August 2025 guideline update. These apply to all adults regardless of age.
| Category | Systolic (mmHg) | Diastolic (mmHg) | |
|---|---|---|---|
| Normal | Less than 120 | and | Less than 80 |
| Elevated | 120 to 129 | and | Less than 80 |
| High BP - Stage 1 | 130 to 139 | or | 80 to 89 |
| High BP - Stage 2 | 140 or higher | or | 90 or higher |
| Hypertensive Crisis | 180 or higher | and/or | 120 or higher |
| Low BP (Hypotension) | Below 90 | and/or | Below 60 |
See the full reference table with colour-coded categories on our blood pressure chart page for a complete breakdown of what each category means.
Hypertensive Crisis
Normal Blood Pressure by Age Group
The clinical targets are the same for all adults, but average readings do shift with age. This happens primarily because arteries naturally stiffen over time, which increases resistance and pushes systolic pressure higher. The following figures represent average readings observed across large population studies, not recommended targets.
Children (Ages 6 to 13)
Blood pressure in children is assessed differently from adults. Normal ranges are based on age, height, and sex, using percentile charts rather than fixed numbers. A pediatrician interprets these readings in context. As a rough guide:
| Age | Typical Systolic | Typical Diastolic |
|---|---|---|
| 6 to 9 years | 85 to 100 mmHg | 55 to 65 mmHg |
| 10 to 13 years | 90 to 110 mmHg | 60 to 70 mmHg |
Adolescents (Ages 14 to 18)
| Age | Typical Systolic | Typical Diastolic |
|---|---|---|
| 14 to 18 years | 110 to 120 mmHg | 65 to 80 mmHg |
Readings are considered high in adolescents if they exceed 130/80 mmHg on repeated measurements, in line with adult guidelines.
Adults (Ages 18 to 39)
These are the lowest-reading decades of adulthood. Averages start around 117/72 mmHg for men and 110/68 mmHg for women at ages 18 to 24, rising gently to 122/76 and 116/72 by the late thirties. The habits formed now set the long-term trajectory.
For young adults, consistent readings above 120/80 are a prompt to make lifestyle changes. A high diastolic blood pressure in this age group is particularly important to address, as it predicts future heart problems even when systolic is normal. Hypertension in young adults significantly increases lifetime cardiovascular risk.
Middle-Aged Adults (Ages 40 to 59)
Averages climb more noticeably in midlife — from about 126/80 mmHg for men and 122/76 for women in their forties to 131/82 and 128/80 in their fifties — as arteries begin to stiffen and systolic pressure starts its long climb.
This is the period when many people receive a first hypertension diagnosis, and annual screening is strongly recommended from age 40. Factors like caffeine intake, alcohol consumption, and anxiety can all affect readings at this stage.
Older Adults (Ages 60 and Above)
From 60 onward the gender gap all but disappears. Averages sit around 135/78 mmHg in the sixties and 138/74 in the seventies, drifting to about 142/72 beyond 80 as systolic keeps rising while diastolic declines and pulse pressure widens.
Older adults often show isolated systolic hypertension, where systolic pressure is high but diastolic pressure is normal or low. This pattern is common and carries real cardiovascular risk. Treatment guidelines for most adults over 60 still target below 130/80 mmHg.
Higher Average Does Not Mean Normal
Normal Blood Pressure for Women vs Men
The clinical categories are identical for both sexes — below 120/80 mmHg is the goal for every adult. The averages, however, follow different paths through life.
Normal Blood Pressure for Women by Age
Women typically read 5 to 8 mmHg lower than men of the same age through their twenties and thirties (110/68 versus 117/72 mmHg at ages 18 to 24). Pregnancy can shift readings temporarily. The bigger change comes at menopause: as protective hormonal effects diminish, women's readings climb faster than men's, the gap closes through the sixties, and by the seventies women's averages (139/74 mmHg) edge slightly above men's. Women over 65 are more likely to have high blood pressure than men of the same age, which makes regular monitoring especially important after menopause.
Normal Blood Pressure for Men by Age
Men run higher from adolescence through middle age, in part because cardiovascular risk factors accumulate earlier. In younger men an elevated diastolic reading is the number to watch, as it predicts future heart problems even when systolic looks healthy. From the sixties onward men's and women's averages converge almost completely.
Why Blood Pressure Changes Over a Lifetime
Several biological and lifestyle factors drive the rise in blood pressure with age:
- Arterial stiffness: Blood vessels lose flexibility over time. Stiffer arteries require more pressure to move blood through them.
- Hormonal changes: Menopause in women causes a significant shift in cardiovascular risk, often leading to higher systolic pressure.
- Weight gain: Average body weight tends to increase in midlife, which raises blood pressure.
- Reduced physical activity: Less exercise leads to weaker heart muscle and reduced vascular tone.
- Dietary patterns: Accumulated years of high sodium intake, low potassium, and poor nutrition compound over time.
- Chronic stress: Long-term psychological stress raises baseline blood pressure through sustained activation of the nervous system.
How Guidelines Differ: US, UK, Canada and Australia
Average readings are the same everywhere, but the threshold at which doctors diagnose high blood pressure depends on where you live. If you are reading this outside the US, your doctor may quote different cut-offs.
| Country | Current guideline | High blood pressure starts at |
|---|---|---|
| United States | AHA/ACC (updated August 2025) | 130/80 mmHg or higher |
| Canada | Hypertension Canada (2025) | 130/80 mmHg or higher |
| United Kingdom | NICE NG136 (updated 2026) | 140/90 mmHg in clinic, confirmed by a home or ambulatory average of 135/85 |
| Australia | National Heart Foundation (2016) | 140/90 mmHg in clinic (a new guideline is expected in late 2026) |
The differences reflect judgement about when treatment benefits outweigh burdens, not disagreement about biology. Whichever country you are in, below 120/80 mmHg is considered optimal, and readings taken at home typically run a few points lower than clinic readings.
How to Know if Your Reading Is Normal
A single reading is a snapshot, not a verdict. To get an accurate picture of where your blood pressure stands, follow these steps:
- Rest quietly for five minutes before measuring.
- Sit with your back supported, feet flat on the floor, and your arm at heart level.
- Take two or three readings, one minute apart.
- Record the date, time, and both numbers for each reading.
- Repeat this process over at least one full week.
- Share the log with your doctor for context and interpretation.
When to See Your Doctor
How to Track Your Blood Pressure at Home
Home monitoring between doctor visits gives a far more complete picture than in-office readings alone. A log of consistent daily readings reveals patterns tied to medication, diet, sleep, exercise, and stress.
A good tracking routine includes:
- Measuring at the same times each day, morning and evening.
- Recording systolic, diastolic, and pulse for each reading.
- Adding context tags such as "after exercise," "poor sleep," or "high stress."
- Reviewing weekly averages rather than reacting to individual spikes.
- Generating a report to share with your healthcare team.
Track with Cardilog
Lifestyle Changes That Lower Blood Pressure at Any Age
- Reduce sodium: Aim for less than 2,300 mg per day. Even small reductions make a measurable difference.
- Exercise regularly: 150 minutes of moderate-intensity activity per week lowers systolic pressure by an average of 5 to 8 mmHg.
- Maintain a healthy weight: Losing even 5 kg can lower systolic pressure by 5 to 10 mmHg.
- Limit alcohol: More than one drink per day for women and two for men raises blood pressure.
- Quit smoking: Each cigarette temporarily raises blood pressure and long-term smoking hardens arteries.
- Manage stress: Chronic stress activates the nervous system in ways that sustain elevated blood pressure. Regular relaxation, sleep, and mindfulness help.
- Follow a heart-healthy diet: The DASH diet (rich in fruits, vegetables, whole grains, and low-fat dairy) reduces systolic pressure by up to 11 mmHg in people with hypertension.
