Blood pressure is written as two numbers: systolic (pressure during a heartbeat) over diastolic (pressure between beats). Enter your latest home or clinic reading below to see how it classifies under the American College of Cardiology / American Heart Association guideline categories.
About this tool
Reading tips: Measure seated after 5 minutes of rest, feet flat, arm supported at heart level; take two readings a minute apart. One high reading is not a diagnosis — patterns over days matter. Readings of 180/120 or higher with symptoms like chest pain, vision changes or severe headache are a medical emergency.
This tool is for general information and screening purposes only. It is not medical advice and cannot diagnose any condition. Always consult a qualified healthcare professional about your health.