About this blood pressure checker
Enter systolic (90–260 mmHg) and diastolic (50–160 mmHg) values and the tool classifies them by both the Chinese hypertension guidelines and the AHA standard: normal (<120 and <80), elevated (120–129 and <80), stage 1 hypertension (130–139 or 80–89), stage 2 or higher (≥140 or ≥90), and crisis (>180 or >120 — seek care immediately), always taking the higher of the two readings.
Pulse is optional and is saved with each entry. The Record button keeps your last 10 measurements in your browser's local storage, handy for reviewing trends at check-ups; nothing is uploaded and you can clear it anytime. Results are for reference only and are not medical advice — consult a doctor if readings are abnormal.