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Calculate PP = SBP − DBP and MAP = DBP + PP/3. Normal ~30–40 mmHg; wide PP → high SV or stiff arteries; narrow PP → low SV. Pulsus paradoxus flags tamponade/asthma/PE. Derived from McDonald's, Franklin 1999, Blacher 1999, StatPearls, LITFL. Not medical advice.
Execution
Fill in the form, run the tool, and review the result in one place.
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Tool usage guide
The Pulse Pressure Calculator uses systolic blood pressure (SBP) and diastolic blood pressure (DBP) in mmHg to calculate pulse pressure, mean arterial pressure (MAP), the pulse-pressure fraction of SBP, and a pulse-pressure category. It is for reference only and is not medical advice.
Background
A medical student wants to verify the pulse pressure and MAP for a blood pressure of 120/80 mmHg.
Problem
The calculations need to be checked with one decimal place.
How to use
Enter SBP 120, DBP 80, and Decimal Places 1.
SBP: 120; DBP: 80; Decimal Places: 1Outcome
The tool returns a pulse pressure of 40 mmHg, MAP of 93.3 mmHg, a fraction of 0.33, and the category "Normal pulse pressure."
Background
A clinical educator is preparing an example using a blood pressure of 160/50 mmHg.
Problem
The educator wants to show how a large difference between SBP and DBP affects the calculated results.
How to use
Enter SBP 160, DBP 50, and Decimal Places 1.
SBP: 160; DBP: 50; Decimal Places: 1Pulse pressure is calculated as SBP − DBP.
It returns pulse pressure, MAP, the fraction of SBP, and a pulse-pressure category.
Enter both systolic and diastolic blood pressure in mmHg.
Yes. Set Decimal Places from 0 to 8; the default is 1.
No. The results are for reference and do not replace professional medical evaluation.
Outcome
The tool returns a pulse pressure of 110 mmHg, MAP of 86.7 mmHg, a fraction of 0.69, and the category "Widened pulse pressure."
Background
A learner wants a compact result for a blood pressure of 130/85 mmHg.
Problem
Decimal output is unnecessary for a quick worksheet calculation.
How to use
Enter SBP 130, DBP 85, and set Decimal Places to 0.
SBP: 130; DBP: 85; Decimal Places: 0Outcome
The calculator produces JSON results rounded to zero decimal places, including pulse pressure and MAP.