Blood pressure phase graph
Plots your systolic and diastolic reading against NHS/NICE-style blood pressure ranges.
Your reading
Blood Pressure Range Calculator
Enter systolic and diastolic blood pressure to see an NHS/NICE-style range assessment, charted against key mmHg thresholds for clinic or home readings.
Reading128/82 mmHgClinic reading
NHS-style rangeRaised / pre-high rangeAbove 120/80 but below 140/90 mmHg.
High threshold140/90 mmHgClinic threshold
Range assessment
AssessmentAbove 120/80 but below 140/90 mmHg.Raised / pre-high range
Main driverBoth systolic and diastolic
Reading contextClinic / professional
Very high thresholdNICE severe hypertension threshold uses clinic 180/120 mmHg or higher.180/120 mmHg
NHS/NICE-style bands
Low rangeCan sometimes cause faintness or dizziness.90/60 or lower
Ideal / normal rangeAdult general guide.90/60 up to 120/80
Raised / pre-high rangeNot high, but above ideal.120/80 up to 140/90 mmHg
High rangeClinic threshold.140/90 mmHg or higher
Very high rangeNeeds prompt clinical attention, especially with symptoms.180/120 mmHg
Cautions
AgeAdult reading.45 years
Medical contextUse normal adult interpretation limits and measurement technique cautions.General adult
Symptoms selectedNo symptom warning selected.No
Assumptions
Calculation notes
- Independent calculator using NHS and NICE published adult blood-pressure thresholds. It is not an official NHS service.
- This calculator does not diagnose high blood pressure, low blood pressure, symptoms, heart attack, stroke, pregnancy problems, or any medical condition.
- NHS blood-pressure tools are for adults aged 18 or over with a recent reading, and are not intended for pregnancy, recent surgery or injury, relevant medical conditions, medicines affecting blood pressure, or new worrying symptoms.
- NHS guidance says high blood pressure is usually 140/90 mmHg or higher in clinic, or 135/85 mmHg or higher when checked at home.
- NICE defines severe hypertension as a clinic reading of 180/120 mmHg or higher. If you feel unwell or have worrying symptoms, use NHS 111/999 guidance.
Guide
How to use the Blood Pressure Range Calculator
Enter systolic and diastolic blood pressure to see an NHS/NICE-style range assessment, charted against key mmHg thresholds for clinic or home readings. It is useful for checking body-measurement reporting figures or planning training and race-pace scenarios because it keeps inputs, charted outputs, notes, and related next steps on the same page.
Start by checking systolic pressure, diastolic pressure, where measured, age, medical context warning, and new worrying symptoms. The results update as assumptions change, so you can compare scenarios before downloading a CSV report.
Inputs
Inputs to check
- Systolic pressure: Enter the value mmHg you want to test.
- Diastolic pressure: Enter the value mmHg you want to test.
- Where measured: NHS/NICE use a lower high-blood-pressure threshold for home average readings.
- Age: Enter the value years you want to test.
- Medical context warning: NHS online blood pressure tools exclude several clinical situations.
- New worrying symptoms: Examples include chest pain, severe headache, blurred vision, dizziness, nausea, confusion, breathlessness, or symptoms you are worried about.
FAQs
Blood Pressure Range Calculator FAQs
What is the Blood Pressure Range Calculator for?
Enter systolic and diastolic blood pressure to see an NHS/NICE-style range assessment, charted against key mmHg thresholds for clinic or home readings. Use it when you want a quick, editable estimate with charted results and visible assumptions.
Which assumptions should I check first?
Start with systolic pressure, diastolic pressure, where measured, age, medical context warning, and new worrying symptoms. Then review the calculation notes for anything the tool does not include.
Are the results exact?
The result is a planning estimate, not medical, fitness, nutrition, training, or diagnostic advice. Check NHS guidance, a GP, pharmacist, coach, or qualified professional where health or safety matters.
Can I keep or compare the result?
Yes. Use the Download CSV button on the calculator page to export the current inputs, headline results, detailed rows, chart data, insights, and notes.
What should I try next?
Try NHS BMI Calculator, Race Pace Calculator, and Triathlon Pace Calculator next. These tools are linked because they use related assumptions or answer the next practical question.