Blood Pressure Classifier
Systolic + diastolic → normal, elevated, hypertension or crisis
Classify adult blood pressure readings with ACC/AHA 2017 categories and show the JNC 8 reference threshold for the selected context.
Important notice
This tool is educational and does not diagnose or replace medical evaluation. Clinical decisions depend on repeated readings, measurement technique, age, cardiovascular risk and history.
JNC 8 context
Result
ACC/AHA 2017
Elevated blood pressure
120-129 and <80 mmHg
Reading used
128/78 mmHg
Pulse pressure
50 mmHg
Systolic pressure is elevated while diastolic remains below 80.
Lifestyle changes and follow-up are commonly recommended.
JNC 8
JNC 8 focuses on treatment thresholds and goals, not the same classification labels.
Adult under 60 years
>=140/90 mmHg
Goal: <140/90 mmHg
Classification basis
ACC/AHA 2017 defines adult blood pressure categories. JNC 8 provides treatment thresholds and goals by age and comorbidity.
Before interpreting
- Use the right cuff size, rest for 5 minutes and avoid talking during measurement.
- A single high reading does not always confirm hypertension; guidelines use averages from repeated measurements.
- The category is determined by the higher-risk value: systolic or diastolic.
- JNC 8 is a treatment guideline; ACC/AHA 2017 is the classification used here.
How it works
- 1Enter systolic pressure, the top number.
- 2Enter diastolic pressure, the bottom number.
- 3Choose the JNC 8 context to see the treatment threshold.
- 4Review the ACC/AHA category and safety warning if shown.