Free Healthcare Tool
Pulse-Pressure Calculator
Calculate the difference between your systolic and diastolic blood pressure readings.
What this answers:
- What is the arithmetic difference (pulse pressure) between a systolic and diastolic reading?
- Is my entered pair of readings internally consistent (systolic above diastolic)?
Pulse pressure is a single number derived from two readings. On its own it does not diagnose a cardiovascular condition — discuss any concerning reading with a clinician.
Pulse pressure
0 mmHg
How it's calculated
pulse pressure = systolic − diastolic
Worked example
120/80 mmHg: 120 − 80 = 40 mmHg.
Source: American Heart Association, Understanding Blood Pressure Readings. Source last checked September 28, 2026.
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