A useful blood pressure log records the date, time, systolic and diastolic values for each measurement. Add pulse if shown, the arm used and a brief factual note when the routine changes. Keep repeated measurements as separate entries rather than replacing them with an average.

What to record

For every measurement, include:

  • date and time;
  • systolic and diastolic pressure;
  • pulse, if your monitor displays it;
  • which arm you used; and
  • a short factual note when your usual routine was different.

Notes might include recent exercise, caffeine, smoking, poor sleep, pain or a cuff change. Avoid turning the log into a judgement about the number. The goal is a clear record.

Keep the routine consistent

Sit with your back supported, feet flat and arm supported at heart level. Use the correct cuff on bare skin, rest before measuring, and take the number of readings recommended by your healthcare professional. Consistency helps comparisons; it does not make a single reading diagnostic.

You can use the free blood pressure log template to create a CSV, or the average calculator to summarise a group while keeping the original rows.

Person sitting with their back supported and feet flat while measuring blood pressure
A consistent seated position helps make readings easier to compare over time.

Bring the record and the monitor

At an appointment, show the full log rather than only the highest or lowest values. Bring the monitor and cuff if possible. A clinician can compare the device with clinic equipment and check how you are applying the cuff.

Do not change medication based on a log without medical advice. If a reading is accompanied by serious symptoms or you think you may be experiencing an emergency, seek urgent local help.

See your readings over time

Use the free blood pressure graph maker to paste your log or import a CSV, review dates and values, and download a graph. It plots each original reading without estimating values across missing days. Keep the full log alongside your graph so repeated readings and notes remain available.

Keep a portable copy of your diary and open the export before sharing it.

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Frequently asked questions

Should I record both readings or only the average?

Keep both original readings with their times. Add a separately labelled summary if requested; do not replace the source measurements.

What should I write for a missed session?

Leave the measurements missing and add a note if useful. Do not enter zero or estimate a reading to fill the gap.

Sources

Sources last checked 26 September 2026.