What Is the NHS Blood Pressure Chart?
The blood pressure chart UK is the reference guide used by NHS clinicians to classify blood pressure readings into categories — from low blood pressure (hypotension) through to ideal, elevated, and hypertensive ranges. Understanding where your reading sits on this chart is one of the most important things you can do for your long-term cardiovascular health.
High blood pressure — or hypertension — affects approximately one in three adults in the UK and is one of the leading causes of heart attack, stroke, and kidney disease. Critically, it causes no symptoms in most people. This is why the NHS recommends regular blood pressure checks for all adults over 40. This guide explains the complete NHS blood pressure chart for 2026, normal ranges by age, and what each category means for your health.
To check your reading against the NHS chart immediately, use our free Blood Pressure Calculator NHS — which gives you your NHS category, gauge position, and personalised advice instantly.
🚨 Emergency: A blood pressure reading of 180/120 mmHg or higher is a hypertensive crisis. Call 999 or go to A&E immediately. Do not wait.
Understanding Your Blood Pressure Reading
Every blood pressure reading is made up of two numbers expressed as one over the other — for example, 120/80 mmHg. Both are measured in millimetres of mercury (mmHg). Understanding what each number means is the first step to interpreting the blood pressure chart correctly:
❤️ Systolic pressure (top number — 120 in 120/80): The force in your arteries when your heart contracts and pumps blood out. This is the higher of the two numbers and is the primary indicator of cardiovascular risk in middle-aged and older adults.
💙 Diastolic pressure (bottom number — 80 in 120/80): The pressure in your arteries when your heart rests and refills between beats. Both numbers matter — but systolic pressure is generally considered more important for assessing risk in adults over 50.
Blood Pressure Chart UK 2026 — All NHS Categories
The following blood pressure chart NHS shows all categories in use by NHS clinicians in 2026, aligned with NICE guideline CG127 and international hypertension guidelines:
| Category | Systolic | Diastolic | NHS Advice |
|---|---|---|---|
| ⬇️ Low (Hypotension) | Below 90 mmHg | Below 60 mmHg | See GP if symptomatic (dizziness, fainting) |
| ✅ Ideal / Normal | 90–120 mmHg | 60–80 mmHg | Excellent — maintain healthy habits, check every 5 years |
| ⚠️ Elevated / Pre-High | 120–139 mmHg | 80–89 mmHg | Lifestyle changes strongly advised, monitor every 6–12 months |
| 🔶 High Stage 1 | 140–159 mmHg | 90–99 mmHg | See GP — lifestyle changes essential, medication may be needed |
| 🔴 High Stage 2 | 160–179 mmHg | 100–119 mmHg | See GP promptly — medication very likely required |
| 🚨 Hypertensive Crisis | 180+ mmHg | 120+ mmHg | Call 999 or go to A&E immediately |
The NHS diagnoses hypertension when your blood pressure is consistently at or above 140/90 mmHg in a clinical setting, or 135/85 mmHg on home or ambulatory monitoring (ABPM). A single high reading does not confirm a diagnosis — multiple readings over time are required. For immediate checking against these ranges, use our NHS blood pressure calculator.
Normal Blood Pressure by Age UK — NHS 2026 Reference
While the NHS diagnostic threshold for hypertension (140/90 mmHg) applies across most adult age groups, average blood pressure does tend to increase with age as arteries naturally stiffen. The table below shows typical average blood pressure ranges by age group for UK adults in 2026:
| Age Group | Average Systolic | Average Diastolic | NHS Note |
|---|---|---|---|
| 18–29 years | 108–120 mmHg | 68–80 mmHg | Typical healthy young adult |
| 30–39 years | 110–122 mmHg | 70–82 mmHg | Slight natural rise begins |
| 40–49 years | 112–125 mmHg | 70–83 mmHg | Regular monitoring recommended |
| 50–59 years | 116–130 mmHg | 72–85 mmHg | Annual NHS checks advised |
| 60–69 years | 121–135 mmHg | 75–85 mmHg | NHS target below 150/90 |
| 70+ years | Up to 150 mmHg | Up to 90 mmHg | Treatment target: below 150/90 |
These are population averages. What matters clinically is whether your reading consistently exceeds the 140/90 mmHg diagnostic threshold — not whether it exactly matches an age-based average. Your GP will assess your reading in the context of your overall cardiovascular risk, which includes weight, cholesterol, smoking, diabetes, and family history. Check your 10-year cardiovascular risk with our QRISK Calculator NHS.
Blood Pressure and Body Weight — The NHS Link
Being overweight is one of the most significant and modifiable risk factors for high blood pressure on the UK blood pressure chart. Excess body weight forces the heart to work harder, increases blood volume, and raises arterial pressure. In 2026, the NHS specifically identifies weight management as a first-line intervention for blood pressure reduction.
Losing even 5 kg can reduce systolic blood pressure by approximately 4–5 mmHg — enough to move some people from Stage 1 hypertension back to the elevated range, reducing their cardiovascular risk meaningfully. Use our tools to assess and manage your weight:
- Visual BMI Calculator — check your current BMI and category
- NHS Healthy Weight Calculator — find your healthy weight range for your height
- Ideal Weight Calculator UK — your personalised target weight
- Calorie Deficit Calculator NHS — calculate your daily calorie target for safe weight loss
For safe weight loss guidance, see our articles on the safe rate of weight loss per week, the 0.5–1 kg rule explained, and what is a calorie deficit.
How to Lower Blood Pressure — NHS Recommendations 2026
If your reading is in the elevated, Stage 1, or Stage 2 category of the blood pressure chart UK, the NHS prioritises lifestyle changes before medication in most cases. Here are the evidence-based interventions recommended by NHS England in 2026:
Reduce Salt to Under 6g Per Day
Cutting salt is the single most effective dietary change for lowering blood pressure. The average UK adult consumes 8–9g per day. A reduction of 3g daily can lower systolic BP by 3–5 mmHg. Avoid adding salt at the table, reduce processed foods, and check labels — sodium above 0.6g per 100g is high.
Exercise 150+ Minutes Per Week
Regular aerobic exercise strengthens the heart and reduces arterial stiffness. The NHS recommends 150 minutes of moderate activity weekly. Even a 10 mmHg reduction in systolic BP is achievable through consistent exercise alone. Brisk walking, cycling, and swimming are all effective. Combining exercise with weight loss produces the greatest benefit.
Follow the DASH or NHS Eatwell Diet
The DASH diet — rich in fruit, vegetables, wholegrains, and lean protein, with limited saturated fat and salt — can reduce systolic BP by 8–14 mmHg. The NHS Eatwell Guide is broadly aligned with these principles. Stay well hydrated too — use our Water Intake Calculator NHS for your daily fluid target.
Stop Smoking Completely
Each cigarette temporarily raises blood pressure and permanently damages arterial walls. Stopping smoking is the single most important lifestyle change for cardiovascular health. The NHS Smokefree helpline (0300 123 1044) offers free cessation support. Stopping smoking also directly reduces your QRISK3 cardiovascular risk score — check it with our QRISK Calculator NHS.
Limit Alcohol to Under 14 Units Per Week
Regular heavy drinking raises blood pressure and contributes to weight gain and cardiac arrhythmias. The NHS recommends a maximum of 14 units weekly for adults, spread across at least 3 days with several alcohol-free days. Reducing alcohol intake by 3 units daily can lower systolic BP by approximately 3–4 mmHg.
How to Measure Blood Pressure Accurately at Home
Accurate blood pressure measurement is essential for correctly interpreting the UK blood pressure chart. The NHS recommends the following steps for home monitoring:
- Sit quietly for at least 5 minutes before measuring — do not measure immediately after exercise, eating, or caffeine
- Sit with your back supported, feet flat on the floor, and arm resting at heart level
- Use a validated upper arm cuff monitor — wrist monitors are less accurate
- Do not talk during the measurement
- Take two readings 1–2 minutes apart and record both
- Measure at the same time each day — morning and evening where possible
- Record readings for at least 4–7 days before sharing with your GP for the most accurate picture
⚠️ White coat hypertension: Some people have higher BP readings in a clinical setting due to anxiety. The NHS uses ABPM (Ambulatory Blood Pressure Monitoring) — a 24-hour portable monitor — to confirm hypertension before diagnosing. Home monitoring over several days provides a more representative reading than a single clinic measurement.
Your Complete NHS Health Check — Tools for 2026
Blood pressure is just one part of a complete cardiovascular health picture. Alongside using our blood pressure calculator NHS, use these free NHS-aligned tools to build a complete picture of your health in 2026:
- QRISK Calculator NHS — estimate your 10-year cardiovascular risk using the QRISK3 algorithm
- Visual BMI Calculator — check your BMI and NHS weight category
- NHS Healthy Weight Calculator — find your ideal weight range
- Calorie Deficit Calculator NHS — plan safe weight loss calories
- Water Intake Calculator NHS — daily hydration target
- Child BMI Calculator NHS — for children aged 2–18
- Child Growth Chart Calculator UK — NHS centile growth tracking
- Baby Weight Percentile Calculator UK — birth to 2 years
- Percentile Calculator UK — height and weight centiles for children
- Pregnancy Due Date Calculator NHS — EDD and antenatal milestones
- Ovulation Calculator NHS — fertility window calculator
📚 Related reading: BMI formula explained with examples · How to calculate BMI step by step · BMI equation vs calculator · NHS vs CDC weight loss guidelines · How much weight can you lose per week safely · What is a calorie deficit.
Frequently Asked Questions
According to NHS 2026 guidelines, normal blood pressure is between 90/60 mmHg and 120/80 mmHg. This is the ideal range for most UK adults. Readings between 120/80 and 140/90 are considered elevated — a warning sign that lifestyle changes are needed. Readings consistently above 140/90 mmHg indicate hypertension and require GP review. Check your reading with our Blood Pressure Calculator NHS.
A reading of 180/120 mmHg or higher is a hypertensive crisis — call 999 or go to A&E immediately. Consistently high readings above 140/90 mmHg also require urgent GP review. Untreated hypertension significantly raises the risk of heart attack, stroke, and kidney disease. Use our QRISK Calculator NHS to estimate your cardiovascular risk.
Blood pressure naturally rises with age. For ages 18–39, normal is typically below 120/80. For 40–59 year olds, up to 130/85 is generally acceptable. For adults aged 60+, the NHS treatment target is below 150/90 mmHg. However, the NHS diagnostic threshold — 140/90 mmHg in clinic — applies across most adult age groups regardless of age. See our full blood pressure chart by age table above.
Being overweight is one of the strongest modifiable risk factors for high blood pressure. Excess weight forces the heart to work harder, increasing arterial pressure. Losing just 5 kg can reduce systolic BP by approximately 4–5 mmHg. Use our NHS Healthy Weight Calculator to find your healthy weight range, and our Calorie Deficit Calculator NHS to plan safe weight loss. See also: safe rate of weight loss per week.
The NHS recommends all adults have their blood pressure checked at least every 5 years from age 40. If your reading is in the elevated range (120–139/80–89), annual checks are advised. For diagnosed hypertension, your GP will advise frequency — often twice daily home monitoring plus clinic checks every 1–6 months. Free NHS Health Checks (including BP) are offered to adults aged 40–74 every 5 years at GP surgeries.
Systolic pressure (top number) measures the force in your arteries when your heart beats. Diastolic pressure (bottom number) measures the pressure when your heart rests between beats. In a reading of 120/80 mmHg, 120 is systolic and 80 is diastolic. Both matter — but systolic pressure is the primary indicator of cardiovascular risk in adults over 50. Use our Blood Pressure Calculator NHS to check both numbers against the NHS chart.