Pulse Pressure Calculator
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Pulse pressure is the difference between the top and bottom blood pressure numbers. For 120/80 it is 40 mmHg, and the mean arterial pressure is about 93 mmHg.
| Pulse pressure (SBP − DBP) | 40 mmHg |
| Category | typical range |
| Mean arterial pressure | 93.33 mmHg |
| Pulse pressure ÷ systolic | 33.3% |
Show steps
- Pulse pressure = systolic − diastolic = 120 − 80 = 40 mmHg.
- Mean arterial pressure ≈ diastolic + pulse pressure ÷ 3 = 80 + 40 ÷ 3 = 93.33 mmHg.
- A pulse pressure around 40 mmHg is common in healthy adults; persistently above 60 mmHg is linked with stiffer arteries, especially with age.
Formulas
- Pulse pressure = systolic − diastolic.
- Mean arterial pressure (MAP) ≈ diastolic + pulse pressure ÷ 3, because the heart spends about two thirds of each beat relaxing.
What the numbers mean
A pulse pressure around 40 mmHg is typical. Values persistently above about 60 mmHg, especially in older adults, often reflect stiffer arteries. Very low values (under about 25) can occur when the heart pumps less blood, as in heart failure or blood loss.
MAP in medicine
Clinicians often aim for a MAP of at least 65 mmHg in very ill patients so organs get enough blood flow.
Pulse Pressure Calculator quiz: 10 questions
Test yourself with 10 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.
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Frequently asked questions
What is a normal pulse pressure?
Around 40 mmHg; roughly 30 to 60 is common.
What does a high pulse pressure mean?
Often stiff arteries; it is linked with higher cardiovascular risk.
What does a low pulse pressure mean?
It can mean the heart is pumping less blood; get medical advice if it is very low with symptoms.
How is MAP calculated?
Diastolic + (systolic − diastolic) ÷ 3.
Is this a diagnosis?
No. Discuss your readings with a clinician.
Sources
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