Check your reading, get your classification, and track trends over time
Blood pressure is measured in mmHg and expressed as systolic (pressure during heartbeat) over diastolic (pressure between beats). Normal blood pressure is below 120/80 mmHg. High blood pressure (hypertension) significantly increases risk of heart disease, stroke, and kidney disease.
Readings can vary throughout the day. For the most accurate reading: sit quietly for 5 minutes, support your arm at heart level, and take 2–3 readings 1 minute apart. Use your average.
This tool is for informational purposes only. If you have high blood pressure or are concerned about your readings, consult a healthcare professional.