Blood Pressure Chart
A blood pressure chart shows what your systolic and diastolic numbers mean across five AHA categories — Normal, Elevated, Stage 1, Stage 2, and Hypertensive Crisis. Use it to check any reading against age-appropriate ranges for men, women, seniors, and pregnancy. Reference values follow American Heart Association 2023 guidelines.
What Does My Blood Pressure Reading Mean?
Jump to a chart
Enter your reading below to look up its AHA category and what it means in plain English.
Blood Pressure Categories
The table below shows the five official AHA blood pressure categories plus hypotension. Each row includes the systolic and diastolic thresholds and a plain-English action step.
| Category | Systolic (mmHg) | And/Or | Diastolic (mmHg) | What to Do |
|---|---|---|---|---|
| Normal | Below 120 | and | Below 80 | Maintain healthy lifestyle. |
| Elevated | 120–129 | and | Below 80 | Lifestyle changes advised. |
| Stage 1 Hypertension | 130–139 | or | 80–89 | Lifestyle changes and discuss medication with a doctor. |
| Stage 2 Hypertension | 140 and above | or | 90 and above | Medication likely required. |
| Hypertensive Crisis | Above 180 | and/or | Above 120 | Seek emergency care immediately. |
| Low Blood Pressure | Below 90 | and | Below 60 | Monitor and seek care if symptoms appear. |
Source: American Heart Association — Understanding Blood Pressure Readings
Blood Pressure Ranges — Visual Reference
Source: American Heart Association (AHA), 2023
Blood Pressure Chart by Age
Average blood pressure rises naturally with age due to reduced arterial elasticity.
| Age Group | Normal Systolic (mmHg) | Normal Diastolic (mmHg) | Notes |
|---|---|---|---|
| Children 6–12 years | 80–110 | 50–80 | Paediatric ranges per NHLBI. |
| Teens 13–18 years | 90–120 | 50–80 | — |
| Adults 19–40 years | 95–125 | 60–80 | — |
| Adults 41–60 years | 110–135 | 70–85 | Rises naturally with age. |
| Seniors 61 and above | 110–140 | 70–90 | Isolated systolic hypertension is common in this group. |
Source: National Heart, Lung, and Blood Institute (NHLBI) — High Blood Pressure
Average Blood Pressure Across Age Groups
Source: NHLBI average ranges
Blood Pressure Chart for Women
Menopause is associated with increased hypertension risk in women. Pregnancy introduces additional thresholds including pre-eclampsia.
| Age | Normal Range | Elevated Threshold | Hypertension Threshold | Notes |
|---|---|---|---|---|
| 18–29 | Below 120/80 | 120–129/80 | 130/80 or above | Hormonal fluctuations may affect readings. |
| 30–39 | Below 120/80 | 120–129/80 | 130/80 or above | Pre-pregnancy screening recommended. |
| 40–49 | Below 120/80 | 120–129/80 | 130/80 or above | Perimenopause may raise blood pressure. |
| 50–59 | Below 130/80 | 130–139/80 | 140/90 or above | Post-menopausal risk increases significantly. |
| 60 and above | Below 130/80 | 130–139/80 | 140/90 or above | Isolated systolic hypertension is common. |
| Pregnancy | Below 120/80 | 130/80 | 140/90 (pre-eclampsia threshold) | Per ACOG guidelines. |
Source: NHLBI and American College of Obstetricians and Gynecologists (ACOG) — Preeclampsia and High Blood Pressure During Pregnancy
Blood Pressure Chart for Men
Men develop hypertension on average earlier than women, with risk rising sharply from the mid-30s onward.
| Age | Normal Range | Elevated Threshold | Hypertension Threshold | Notes |
|---|---|---|---|---|
| 18–29 | Below 120/80 | 120–129/80 | 130/80 or above | Men in this age group develop hypertension earlier than women. |
| 30–39 | Below 120/80 | 120–129/80 | 130/80 or above | Risk rises sharply through the 30s. |
| 40–49 | Below 130/80 | 130–139/80 | 140/80 or above | Regular monitoring is strongly advised. |
| 50–59 | Below 130/80 | 130–139/80 | 140/90 or above | Lifestyle factors become increasingly impactful. |
| 60 and above | Below 130/80 | 130–139/80 | 140/90 or above | Isolated systolic hypertension increases with age. |
Source: National Heart, Lung, and Blood Institute (NHLBI) — High Blood Pressure
How to Read Your Blood Pressure Numbers
- The top number is called systolic. It measures the pressure when your heart beats.
- The bottom number is called diastolic. It measures the pressure between beats.
- One high reading is not a diagnosis. Take three readings on separate days before drawing conclusions.
- Measure after sitting quietly for five minutes. Use the same arm each time.
- An upper arm cuff is more accurate than a wrist cuff for home monitoring.
Low Blood Pressure Chart
Blood pressure is considered low when systolic falls below 90 mmHg or diastolic falls below 60 mmHg.
| Level | Systolic | Diastolic | Common Symptoms |
|---|---|---|---|
| Mild | Below 90 | Below 60 | Dizziness and fatigue. |
| Orthostatic | Drops 20 or more points on standing | N/A | Lightheadedness when standing up quickly. |
| Severe | Below 70 | Below 40 | Confusion and fainting. Seek emergency care. |
Source: Mayo Clinic — Low Blood Pressure (Hypotension)
When Is Blood Pressure Dangerous
Seek emergency care if systolic exceeds 180 AND/OR diastolic exceeds 120.
- Sudden severe headache with no known cause.
- Chest pain or shortness of breath.
- Sudden changes in vision.
Lifestyle Changes to Lower Blood Pressure
These evidence-based lifestyle changes can reduce systolic blood pressure without medication, especially in the Normal to Stage 1 range.
| Intervention | Expected Systolic Reduction (mmHg) | Notes |
|---|---|---|
| DASH diet | 8–14 mmHg | Emphasises fruits, vegetables, whole grains, and low-fat dairy. |
| Reducing dietary sodium below 2,300 mg per day | 2–8 mmHg | Most effective in salt-sensitive individuals and older adults. |
| Regular aerobic exercise 30 minutes most days | 4–9 mmHg | Walking, cycling, swimming, and jogging all qualify. |
| Limiting alcohol to one drink per day (women) or two (men) | 2–4 mmHg | Excess alcohol raises blood pressure. |
| Losing 10 pounds of body weight | 5–20 mmHg | Weight loss is one of the most impactful single interventions. |
| Quitting smoking | Variable but significant | Nicotine raises blood pressure immediately and damages blood vessel walls over time. |
| Reducing chronic stress through mindfulness or meditation | 2–5 mmHg | Effect varies widely by individual. |
| Increasing potassium intake (bananas, leafy greens, beans) | 2–4 mmHg | Potassium counteracts sodium's blood pressure effect. |
Source: American Heart Association — Changes You Can Make to Manage High Blood Pressure
Blood Pressure Medications Overview
When lifestyle changes are insufficient, doctors prescribe one or more of these medication classes depending on the stage of hypertension and the patient's other health conditions.
| Medication Class | How It Works | Common Examples | Typical Use Case |
|---|---|---|---|
| ACE inhibitors | Block the enzyme that narrows blood vessels | Lisinopril, Ramipril | Stage 1 and Stage 2 hypertension; especially with diabetes or kidney disease. |
| ARBs (Angiotensin receptor blockers) | Block receptors that cause vessel narrowing | Losartan, Valsartan | Alternative to ACE inhibitors if ACE causes a cough. |
| Calcium channel blockers | Relax blood vessel walls by blocking calcium entry | Amlodipine, Nifedipine | Often used in older adults and in combination therapy. |
| Thiazide diuretics | Reduce fluid volume in blood vessels | Hydrochlorothiazide, Chlorthalidone | First-line treatment for most patients. |
| Beta-blockers | Slow heart rate and reduce heart output | Metoprolol, Atenolol | Used when hypertension accompanies heart disease or anxiety. |
| Aldosterone antagonists | Block sodium retention in kidneys | Spironolactone | Used in resistant hypertension. |
This table is for general reference only. Do not start, stop, or adjust blood pressure medication without consulting your doctor.
Source: American Heart Association — Hypertensive Crisis and NHS — High Blood Pressure Treatment
30-Day Blood Pressure Log
Log each reading with a date. The table automatically calculates a 7-day rolling average and colour-flags every entry by AHA category.
No readings logged yet. Add your first reading above.
Frequently Asked Questions
Is 130 over 80 considered high blood pressure?
Yes. A reading of 130/80 mmHg meets the AHA threshold for Stage 1 Hypertension, as shown in the categories chart above. At this level, lifestyle changes are strongly recommended and a doctor consultation is advised to discuss whether medication is needed.
What is a normal blood pressure reading for a 60-year-old?
For seniors aged 61 and above, the NHLBI age chart above shows a normal systolic range of 110–140 mmHg and diastolic range of 70–90 mmHg. Isolated systolic hypertension becomes more common with age, making regular monitoring particularly important in this group.
Can stress cause high blood pressure?
Acute stress causes a temporary spike in blood pressure as the body releases adrenaline, raising both heart rate and vascular resistance. Chronic stress contributes to sustained hypertension over time by keeping stress hormones elevated and promoting unhealthy behaviours such as poor diet and disrupted sleep.
What is the difference between systolic and diastolic?
Systolic pressure is the top number and measures the force your heart exerts on arterial walls when it contracts and pumps blood. Diastolic pressure is the bottom number and measures arterial pressure between heartbeats when the heart is at rest and refilling.
What is considered a dangerously high blood pressure?
A blood pressure above 180/120 mmHg is classified as a Hypertensive Crisis per AHA guidelines, as shown in the categories chart above. This requires emergency care immediately, particularly if accompanied by severe headache, chest pain, or vision changes. Sudden blurring or loss of vision can be a warning sign — use the eye chart guide to understand what Snellen acuity scores mean and when to seek an urgent eye examination.
How often should I check my blood pressure at home?
When monitoring a new reading or after a medication change, the AHA recommends checking once in the morning and once in the evening for at least two weeks to establish a reliable baseline. Once your readings are stable, checking weekly is typically sufficient.
What foods lower blood pressure quickly?
High-potassium foods such as bananas, leafy greens, and beans help counteract sodium's blood pressure-raising effect, as detailed in the lifestyle changes table above. Low-sodium foods and those rich in magnesium and calcium — including low-fat dairy, nuts, and seeds — also support healthy blood pressure when consumed consistently. If you are adding lean protein sources like steak to a heart-healthy diet, see the steak temperature chart for safe internal cooking temperatures to preserve nutrition without overcooking.
What causes high blood pressure?
Primary hypertension, which accounts for the majority of cases, develops gradually over years with no single identifiable cause and is linked to genetics, age, diet, inactivity, and obesity. Secondary hypertension has a specific underlying cause such as kidney disease, thyroid disorder, or certain medications, and resolving that cause can often normalise blood pressure. Staying well hydrated also plays a role — the urine color chart is a quick visual guide to hydration status. If you also track blood glucose, see the normal blood sugar levels chart for ADA 2024 fasting and post-meal reference ranges. Digestive health is another component of overall wellness — the Bristol Stool Chart explains what each stool type indicates about gut transit time and hydration.