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Pulse Pressure Calculator: Understand Normal, Low & High Pulse Pressure and Its Impact on Heart Health
Pulse Pressure Calculator for Adults
Free calculator
Mobile friendly
No data stored
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Pulse Pressure (mmHg)
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Pulse Pressure (kPa, SI)
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Category
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Pulse pressure (PP) = Systolic − Diastolic. Adult PP commonly ~40 mmHg. Educational use only.
🩸What is Pulse Pressure?
Pulse pressure represents the force that the heart generates each time it contracts. It gives important clues about:
Stroke volume (the amount of blood ejected by the heart)
Arterial stiffness
Cardiac output and vascular compliance
🩺 Definition
Pulse Pressure (PP)=Systolic BP−Diastolic
For example, if your blood pressure is 120/80 mmHg, then Pulse Pressure = 120 – 80 = 40 mmHg.
💓 Normal Range of Pulse Pressure
Normal pulse pressure: 30 to 50 mmHg
Narrow (low) pulse pressure: < 30 mmHg
Wide (high) pulse pressure: > 60 mmHg
⚕️ Clinical Significance
🔹 Low (Narrow) Pulse Pressure (< 30 mmHg)
Indicates reduced stroke volume or cardiac output.
Possible causes include:
Heart failure
Aortic stenosis
Hypovolemic shock
Blood loss or dehydration
🩸 Example: BP = 90/70 → PP = 20 mmHg → Suggests poor cardiac output
🔹 High (Wide) Pulse Pressure (> 60 mmHg)
Often indicates increased stroke volume or decreased arterial compliance (stiff arteries).
Possible causes include:
Aging and arteriosclerosis
Aortic regurgitation
Hyperthyroidism
Fever or anemia
Exercise (temporary widening is normal)
🩸 Example: BP = 160/80 → PP = 80 mmHg → May indicate arterial stiffness
💡 Relation with Mean Arterial Pressure (MAP)
Pulse Pressure contributes to calculating Mean Arterial Pressure, which reflects average perfusion pressure in arteries during a single cardiac cycle.
MAP= (DBP) + (1/3 x PP)
So, a change in Pulse Pressure also affects tissue perfusion.
📖 References
Hall JE, Guyton AC. Textbook of Medical Physiology. 14th ed. Philadelphia: Elsevier; 2021. Chapter 15, Vascular Distensibility and Functions of the Arterial and Venous Systems; p. 184–186.
National Heart, Lung, and Blood Institute (NHLBI). High blood pressure: understanding the numbers [Internet]. Bethesda (MD): U.S. Department of Health and Human Services; 2024 [cited 2025 Nov 5]. Available from: https://www.nhlbi.nih.gov
Centers for Disease Control and Prevention (CDC). Heart disease facts [Internet]. Atlanta (GA): U.S. Department of Health and Human Services; 2024 [cited 2025 Nov 5]. Available from: https://www.cdc.gov/heartdisease/
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