Pulse Pressure Calculator

Pulse pressure (PP) is the difference between systolic blood pressure and diastolic blood pressure: PP = Systolic BP - Diastolic BP. It reflects the force generated by the heart with each beat and the stiffness of the arterial walls. A normal pulse pressure is approximately 40 mmHg, or about one-third of systolic blood pressure.

A normal pulse pressure is 30 to 50 mmHg. For most adults with a blood pressure around 120/80 mmHg, the pulse pressure is 40 mmHg. A pulse pressure above 60 mmHg is considered wide (high) and may indicate increased arterial stiffness, aortic regurgitation, or atherosclerosis. A narrow pulse pressure below 25 mmHg may indicate low cardiac output, aortic stenosis, or cardiac tamponade.

Wide pulse pressure (above 60 mmHg) is associated with increased arterial stiffness, which means the aorta and large arteries do not buffer the cardiac output as effectively. This places more stress on the microvasculature and is an independent predictor of cardiovascular events including stroke, heart attack, and heart failure, particularly in older adults. The Framingham Heart Study and other large cohort studies have documented this association.

Mean arterial pressure (MAP) is the average pressure in the arteries throughout a cardiac cycle, calculated as: MAP = Diastolic BP + (1/3) x Pulse Pressure, or approximately (Systolic + 2 x Diastolic) / 3. MAP reflects overall perfusion pressure to organs, while pulse pressure reflects the dynamic force of each heartbeat. Normal MAP is 70 to 100 mmHg.

Yes. Medications that reduce arterial stiffness (such as ACE inhibitors, ARBs, and calcium channel blockers) can narrow a wide pulse pressure. Medications that reduce heart rate and stroke volume (such as beta-blockers) can also reduce pulse pressure. Diuretics reduce preload and may narrow pulse pressure indirectly. Vasodilators reduce afterload and can raise diastolic BP, narrowing pulse pressure.