Automatic blood pressure monitors

There are many different kinds of home blood pressure monitor, but it is easiest to use a monitor that is fully automatic (digital). Choose one that measures your blood pressure at your upper arm, rather than at your wrist or finger. Upper-arm blood pressure monitors usually give the most accurate and consistent results.
Make sure you have the right cuff size
An upper-arm blood pressure monitor will come with a cuff that you need to wrap around your arm. If you use a cuff that is the wrong size for you, your blood pressure reading will not be correct. Measure around your upper arm at the midpoint between your shoulder and elbow, and choose your cuff size from the chart below.

Upper Arm Blood Pressure Monitor cuff sizes
Measurement (cm)	Measurement (inches)	Cuff size
18-22 cm	7.1-8.7”	Small
22-32 cm	8.8-12.8”	Medium
32-45 cm	12.8-18”	Large

Most home blood pressure monitors will come with a medium-sized cuff. You may have to order a different-sized cuff separately.

Upper Arm Blood Pressure Monitor cuff sizes
Measurement (cm)	Measurement (inches)	Cuff size
18-22 cm	7.1-8.7”	Small
22-32 cm	8.8-12.8”	Medium
32-45 cm	12.8-18”	Large

Most home blood pressure monitors will come with a medium-sized cuff.