Enter the averages from a home blood pressure record kept under the 722 protocol and the page recomputes the average with day 1 removed. Seven boxes are needed: days measured, morning mean systolic and diastolic, evening mean systolic and diastolic, and the day 1 mean systolic and diastolic.
722 means two readings per sitting, two sittings a day (morning and evening), for seven consecutive days, with a minimum of five days. Morning readings run from 6 AM to noon and evening readings from 6 PM to midnight, with at least one minute between the two readings in a sitting. You sit quietly for five minutes first and measure before medication, food or hard exercise, and day 1 is left out of the average. The page combines the morning and evening means with equal weight, then applies (overall average times days, minus the day 1 average) divided by (days minus one). Under the ACC/AHA 2017 guideline, a home average of 130/80 mmHg or higher corresponds to stage 1 hypertension in the office (as of October 2026).
Sources disagree on whether the two readings in a sitting should be averaged or the lower one kept; this page averages them. The 130/80 home threshold is the value ACC/AHA 2017 lists as matching an office reading of 130/80 mmHg. The page does not score how reliable your measurements were, because no published weighting exists for time of day or what you did beforehand. Comparing a value with a threshold is not a diagnosis: diagnosing hypertension and deciding on medication rests with a clinician who sees both clinic and home readings.
Frequently asked questions
Because the 722 protocol leaves the first day out of the average. The page subtracts the day 1 mean from the overall average you entered and divides what is left by the remaining days.
The average is still calculated, but the page flags that you are short of the minimum. The protocol asks for seven consecutive days and requires at least five. A single day leaves nothing to average, so you get an error message instead.
Because no published weighting exists for scoring time of day or pre-measurement activity. This page goes as far as the average and the comparison with a published threshold, and no further.