How much is the normal range value of hypertension and hypotension

Both hypertension and hypotension are abnormal, so there is no normal range.

Normal blood pressure values are systolic 90-139mmHg and diastolic 60-89mmHg. Hypertension is possible if diastolic blood pressure is greater than or equal to 140mmHg and/or diastolic blood pressure is greater than or equal to 90mmHg. Hypotension is possible if systolic blood pressure is less than 90mmHg and diastolic blood pressure is less than 60mmHg. However, if the patient occasionally has abnormal blood pressure or is not much different from the normal value of blood pressure, it may be caused by poor living and eating habits. By improving living and eating habits, blood pressure will gradually return to normal.