Authored on 24 January 2024 by Dr R Karunadasa,
Medically reviewed 30 April 2026 by Adeel Arshad.
Next review due: 30 April 2027
How to test your blood pressure at home
Accurate UK guidance for pharmacy checks, choosing a validated monitor, and taking readings your clinician can trust.
Why accurate readings matter
Many UK prescribers and online clinics ask for a blood pressure reading from the last six months before they supply medicines that affect the circulation. A consistent, correctly taken measurement helps keep you safe and avoids unnecessary delays.
This page explains where to get checked for free or at low cost, what to look for if you buy a home monitor, and how to sit, rest, and record readings the same way each time.
Where can I get my blood pressure measured?
You can get your blood pressure checked at most pharmacies or health centres. Alternatively, you can buy an upper-arm digital monitor from about £20 upwards. Use a device that has been validated for home use. The British Hypertension Society (BHS) lists monitors that have been tested for accuracy.
How do I take my blood pressure at home?
If you measure at home, use a validated monitor and follow the booklet. Sit with your back supported, feet flat on the floor, and arm supported at heart level. Rest quietly for five minutes before the first reading. Use a bare upper arm and a cuff that fits. Avoid caffeine, exercise, and smoking for at least 30 minutes beforehand.
Relax and do not talk during the measurement. You will feel the cuff inflate and then slowly deflate. Note the systolic and diastolic numbers (often written as ‘120/80’) and your pulse if shown.
The first number is systolic pressure (when the heart beats); the second is diastolic (when the heart relaxes). ‘P75’ would mean a pulse of 75 beats per minute.
Factors that can temporarily raise blood pressure include cold, recent exercise, caffeine, stress, smoking, and some medicines.
- Cold temperatures
- Exercise
- Caffeine
- Stress
- Smoking
- Certain medications (check the label on your device)
Take at least two readings at least one minute apart. If you are asked for a single figure for an online consultation, use the lower of the two unless your own clinician has told you otherwise.
Buying a home blood pressure monitor
PrivateDoc does not sell blood pressure monitors. When you shop, prioritise devices that appear on the BHS validated list for home use rather than choosing on price or packaging alone. Upper-arm cuffs are generally easier to use consistently than wrist models.
UK pharmacies often stock suitable models, and you can also order online from reputable UK retailers. If you use a marketplace, check that the exact model number matches an entry on the validated list so you know the device has been tested for accuracy.
If you are completing an online consultation with PrivateDoc and need a recent reading, see how PrivateDoc works or browse our treatment areas when you are ready.
Further help
When you have your reading, you can continue with your usual PrivateDoc journey or explore how we work.