Categories used
Readings are grouped using the 2017 American Heart Association guideline: normal below 120/80, elevated 120–129 systolic, stage 1 from 130/80, stage 2 from 140/90, and a crisis above 180/120.
Please note
This tool gives a general estimate for information only. It is not medical advice — talk to a doctor or pharmacist about your own situation.
Frequently asked questions
Which number matters more?
Both. A reading is placed in the higher category of the two numbers.