Pulse Pressure Calculator: Systolic Minus Diastolic
Enter your blood pressure reading to see your pulse pressure, the gap between the upper and lower numbers.
- Nothing you type is stored
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Pulse pressure
40mmHg
Typical- As % of systolic
- 33%
- Mean arterial pressure
- 93 mmHg
An estimate for general information, not medical advice.
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- 120 − 80 = 40 mmHg
How to use
- Measure your blood pressure while rested.
- Enter the systolic (upper) and diastolic (lower) numbers.
- Read your pulse pressure and whether it is narrow, typical or wide.
Good to know
Pulse pressure = systolic − diastolic. At 120/80 it is 40 mmHg, a typical resting value for adults.
A pulse pressure above about 60 mmHg is usually called wide. It becomes more common after 60 as arteries stiffen and is linked with higher heart risk. A pulse pressure below about 25% of the systolic number is called narrow and can be seen with low heart output, for example after blood loss or with some valve problems.
Pulse pressure is one reading among many and changes with exercise, posture and time of day. A single unusual value is not a diagnosis; discuss repeated unusual readings with your doctor.
Questions
What is a normal pulse pressure?
About 40 mmHg at rest; roughly 40–60 is common in adults.
Is a pulse pressure of 70 bad?
Above 60 is considered wide. It is common in older adults with stiff arteries, and worth discussing with your doctor along with your BP.
What causes a narrow pulse pressure?
Low stroke volume, for example from dehydration, blood loss or some heart conditions. It needs medical review if you feel unwell.
Does exercise change pulse pressure?
Yes, it widens during exercise because systolic pressure rises. Measure at rest for a fair value.
Is my data saved?
No. Everything is calculated on your device.