Blood Pressure Calculator

Introduction

A blood pressure test is a simple way of checking if your blood pressure is too high or too low.

Blood pressure is the term used to describe the strength with which your blood pushes on the sides of your arteries as it's pumped around your body.

Understanding your blood pressure reading

Blood pressure is measured in millimetres of mercury (mmHg) and is given as two figures:

  • systolic pressure – the pressure when your heart pushes blood out
  • diastolic pressure – the pressure when your heart rests between beats

For example, if your blood pressure is "140 over 90" or 140/90mmHg, it means you have a systolic pressure of 140mmHg and a diastolic pressure of 90mmHg.

 

Blood Pressure Chart

High blood pressure (hypertension) can put a strain on your arteries and organs, which can increase your risk of developing serious problems such as heart attacks and strokes.

Low blood pressure (hypotension) isn't usually as serious, although it can cause dizziness and fainting in some people.

A blood pressure test is the only way to find out if your blood pressure is too high or too low, because most people won't have any obvious symptoms. Having a test is easy and could save your life.

 

Recording and Submitting Your Blood Pressure

The form below allows you to securely input your details and BP readings. Please complete all sections and where possible, provide 7 days worth of morning and evening BP readings.

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Personal Details

If you have been advised by the surgery to submit your blood pressure readings on a regular basis please use this form.

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Please provide a minimum of one day blood pressure readings, up to a maximum of seven days.
Take a readings in the morning and in the evening of each day.

Your Blood Pressure Day 1

Day 1 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (1 Day)
Diastolic Average (1 Day)
 
Your Blood Pressure Day 2

Day 2 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 2 Days)
Diastolic Average (Over 2 days)
 
Your Blood Pressure Day 3

Day 3 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 3 Days)
Diastolic Average (Over 3 Days)
 
Your Blood Pressure Day 4

Day 4 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 4 Days)
Diastolic Average (Over 4 Days)
 
Your Blood Pressure Day 5

Day 5 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 5 Days)
Diastolic Average (Over 5 Days)
 
Your Blood Pressure Day 6

Day 6 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 6 Days)
Diastolic Average (Over 6 Days)
 
   
Your Blood Pressure Day 7

Day 7 - Measurement

Morning Morning

Your systolic blood pressure is the top number on your reading
Your diastolic blood pressure is the bottom number on your reading
Your pulse rate is the number of times your heart beats per minute

Evening Evening

Top Number
Bottom Number
Pulse
Systolic Average (Over 7 Days)
Diastolic Average (Over 7 Days)
 

Privacy Consent

This form collects personal and medical information about you. We use this information to allow the practice team to contact you. Please read our Privacy Policy to discover how we protect and manage your submitted data.

 
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When should I get my blood pressure tested?

You can ask for a blood pressure test if you're worried about your blood pressure at any point.

You can get your blood pressure tested at a number of places, including:

  • at your local GP surgery
  • at some pharmacies
  • in some workplaces
  • at home (see home blood pressure testing below)
  • at an NHS Health Check appointment offered to adults in England aged 40-74

It's recommended that all adults over 40 years of age have their blood pressure tested at least every five years so any potential problems can be detected early.

If you've already been diagnosed with high or low blood pressure, or you're at a particularly high risk of these problems, you may need to have more frequent tests to monitor your blood pressure.

 

Home blood pressure monitoring

Blood pressure tests can also be carried out at home using your own digital blood pressure monitor.

This can give a better reflection of your blood pressure, as being tested in somewhere like a GP surgery can make you feel anxious and can affect the result. It can also allow you to monitor your condition more easily in the long term.

You can buy a variety of low-cost monitors so you can test your blood pressure at home or while you're out and about.

It's important to make sure you use equipment that has been properly tested. The British Hypertension Society (BHS) has information about validated blood pressure monitors that are available to buy.

 

Controlling your blood pressure

If your blood pressure is found to be too high or too low, your GP or the healthcare professional performing the test can advise you about ways to control it.

This may involve:

In some cases, you may be referred to a doctor such as a cardiologist (heart specialist) to discuss treatment options.

Read more about treating high blood pressure and treating low blood pressure.

 

Page last updated: 9/6/21 15:25