Normal blood pressure is 120/80 or lower. High blood pressure is 140/90 or higher. If your blood pressure is between 120/80 and 140/90, you have something called "prehypertension" (you are in the beginning stages and at risk of high blood pressure). Only your doctor can tell you whether you have high blood pressure. Most doctors will check your blood pressure several times on different days before deciding that you have high blood pressure. If you have high blood pressure or prehypertension, you need to check your blood pressure regularly and keep in touch with your family doctor.
Systolic (first number) Diastolic (second number)
Normal Less than 120 Less than 80
Prehypertension 120–139 80–89
High blood pressure: Stage 1* 140–159 90–99
High blood pressure: Stage 2 160 or higher 100 or over
*If you have diabetes or kidney disease, high blood pressure ranges may be lower than it is for other people. Talk to your doctor about what is considered high blood pressure for you.
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