Pulse Pressure Calculator
Calculate pulse pressure and mean arterial pressure from systolic and diastolic readings.
The top number (when the heart beats)
The bottom number (between beats)
Pulse Pressure
Category
Mean Arterial Pressure
What Pulse Pressure Means
Pulse pressure is the difference between your systolic blood pressure (the top number, measured when the heart contracts) and your diastolic blood pressure (the bottom number, measured when the heart relaxes between beats). It is calculated simply as:
Pulse pressure reflects the force the heart generates with each contraction and the stiffness of the large arteries. A persistently wide (high) pulse pressure can indicate stiffening of the arteries (arteriosclerosis), which becomes more common with age and is associated with increased cardiovascular risk. A narrow (low) pulse pressure may suggest reduced cardiac output, significant blood loss, or aortic valve problems. Because it is derived from a single blood pressure reading, pulse pressure is most meaningful when interpreted alongside repeated, properly measured readings.
Pulse Pressure Ranges
A pulse pressure of roughly 40 mmHg is considered typical for a healthy adult. The general ranges used by this calculator are:
| Category | Pulse Pressure | Notes |
|---|---|---|
| Low / Narrow | < 40 mmHg | May reflect low stroke volume or aortic valve disease |
| Normal | 40–60 mmHg | Typical range for healthy adults |
| High / Wide | > 60 mmHg | Often linked to arterial stiffness; rises with age |
Mean Arterial Pressure (MAP)
Mean arterial pressure is the average pressure in your arteries during a single cardiac cycle. It is a useful indicator of how well your organs are being perfused with blood. Because the heart spends roughly two-thirds of each cycle in diastole, MAP is weighted toward the diastolic pressure and is commonly estimated as:
A MAP of at least 60 mmHg is generally considered necessary to perfuse the vital organs of an average person. Values that are too low can indicate inadequate blood flow, while persistently high values may suggest excessive strain on the heart and vessels.
Important medical disclaimer: This calculator is provided for general educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Pulse pressure and mean arterial pressure derived from a single reading can be affected by measurement technique, posture, stress, recent activity, and many other factors. Do not use these results to diagnose any condition or to start, stop, or change any treatment. Always consult a qualified healthcare professional regarding your blood pressure and cardiovascular health. If you experience symptoms such as chest pain, severe headache, shortness of breath, fainting, or very high or very low readings, seek emergency medical care immediately.