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⚕️ Medical Calculator
Blood Pressure Classifier
Classify your blood pressure reading using AHA/ACC guidelines. Calculate MAP and pulse pressure.
⚠️ For educational purposes only. Always consult a qualified healthcare professional before making clinical decisions.
✅ Normal blood pressure. Maintain healthy lifestyle habits.
⚠️ Elevated blood pressure. Lifestyle changes recommended. Monitor regularly.
⚠️ Hypertension Stage 1. Consult your doctor about management options.
🔴 Hypertension Stage 2. Seek medical attention promptly.
🚨 Hypertensive Crisis. Seek emergency medical care immediately!
About This Blood Pressure Interpreter
This free blood pressure calculator interprets systolic and diastolic blood pressure readings according to current clinical guidelines and provides context for the result.
Blood pressure is one of the most important vital signs in clinical practice. Accurate interpretation requires understanding both components — systolic (pressure during heartbeat) and diastolic (pressure between beats) — as well as the clinical context.
Blood Pressure Classification
ACC/AHA 2017 classification: Normal <120/<80; Elevated 120-129/<80; Stage 1 Hypertension 130-139/80-89; Stage 2 Hypertension ≥140/≥90; Hypertensive Crisis >180/>120. Isolated systolic hypertension is common in older adults.
Frequently Asked Questions
What is white coat hypertension?+
White coat hypertension is elevated blood pressure in clinical settings that is normal at home. ABPM (Ambulatory Blood Pressure Monitoring) or home monitoring is used to diagnose this.
How should blood pressure be measured accurately?+
Patient should be seated, rested for 5 minutes, arm at heart level, no caffeine or exercise in the prior 30 minutes. Two readings 1-2 minutes apart; take the average.
At what blood pressure should treatment be considered?+
Current guidelines generally recommend treatment for Stage 2 hypertension (≥140/90) and for Stage 1 hypertension with elevated cardiovascular risk. Individual clinical judgement is essential.
What causes secondary hypertension?+
Common causes include renal parenchymal disease, renovascular disease, primary aldosteronism, obstructive sleep apnoea, and medications (NSAIDs, OCP, stimulants).
Is this tool suitable for clinical use?+
This tool is for educational reference only. Clinical decisions should be based on multiple readings, full patient assessment and current clinical guidelines.