What Is Normal Blood Pressure? A UK Guide to Understanding Your Numbers
Confused by your blood pressure readings? We explain what is considered normal blood pressure in the UK, what the numbers mean, and when you should see a GP.
You've just taken your blood pressure. The machine whirs, the cuff deflates, and two numbers flash up on the screen: 128/84.
Is that good? Is it bad? Should you be worried?
Knowing "what is normal blood pressure" is the most common question we get at Blood Pressure Chart. The answer isn't just a single number; it is a range that indicates how hard your heart is working.
Here is a simple, no-nonsense guide to understanding your blood pressure readings according to NHS and NICE (National Institute for Health and Care Excellence) guidelines.
1. The Two Numbers Explained
First, you need to know what you are looking at. Blood pressure is always written as two figures (e.g., 120/80 mmHg).
Systolic (The Top Number): This is the pressure when your heart beats and pumps blood out. It is the higher of the two numbers.
Diastolic (The Bottom Number): This is the pressure when your heart rests between beats.
2. What is "Normal" in the UK?
Unlike in the US, which recently lowered its threshold for hypertension, the UK maintains specific distinct ranges.
✓ Ideal Blood Pressure: Between 90/60 and 120/80
If your reading is here, keep doing what you're doing! Your risk of heart disease and stroke is lower.
⚠ Normal / High-Normal: Between 120/80 and 140/90
This is not considered "high blood pressure" yet, but it is a yellow flag. It suggests you should start making lifestyle changes (like cutting salt) to stop it from creeping higher.
3. What is High Blood Pressure (Hypertension)?
In the UK, doctors typically diagnose high blood pressure if your readings are consistently 140/90 or higher.
Stage 1 Hypertension: 140/90 to 159/99
You will likely be advised to change your lifestyle and may be offered medication depending on your other risk factors (like age or diabetes).
Stage 2 Hypertension: 160/100 or higher
This usually requires medication to bring it down safely.
🚨 Severe Hypertension: 180/110 or higher
This is a medical priority. If you get a reading this high and feel unwell (headaches, blurred vision), seek medical attention immediately.
Go Deeper
Want the Complete Guide to Lowering Your Numbers Naturally?
Get our comprehensive handbook with proven protocols for diet, exercise, stress management and more.
4. Does Age Matter?
Yes. As we age, our arteries naturally stiffen, which can cause blood pressure to rise slightly.
Over 80s: The target for "normal blood pressure" is slightly higher. The NHS generally advises that for people aged 80 or over, a target below 150/90 is acceptable (or 145/85 if measured at home).
5. The Importance of "Home" vs. "Clinic" Readings
You might notice your blood pressure is higher when a doctor takes it. This is called the "White Coat Effect." Because of this, home readings are often more accurate than clinic readings.
💡 Home Monitoring Tip
Because you are more relaxed at home, the threshold for diagnosing high blood pressure is slightly lower (usually 135/85 rather than 140/90). Need a reliable monitor? Check our guide to the best blood pressure monitors for accurate home readings.
Summary: Don't Rely on One Reading
Blood pressure changes throughout the day. It goes up when you are stressed or exercising, and down when you sleep. A single high reading doesn't mean you have hypertension.
The Golden Rule: Take multiple readings over a few days and map them. This allows you to see your average, which is what really matters.
Ready to see where you stand? Plot your numbers on our Blood Pressure Chart to see exactly where you fall in the healthy range.
Ready to Take Control of Your Blood Pressure?
Our Definitive Blood Pressure Handbook gives you everything you need: the science behind your numbers, natural treatment protocols, and a doctor-ready logbook to track your progress.
Disclaimer: This guide follows UK standards (NHS/NICE). It is for information only and does not replace professional medical advice.
