Blood Pressure Calculator
Compute mean arterial pressure from systolic and diastolic readings.
Use the calculator below, then review the formula, a numeric example, and the reference table to understand how the blood pressure map calculator result is produced.
Calculator inputs
Result
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What is this calculator?
Compute mean arterial pressure from systolic and diastolic readings. The formula, a worked example, and a reference table are below. Results are for education only, not medical advice.
How it works
Mean arterial pressure (MAP) = diastolic + (systolic − diastolic) ÷ 3.
Example
120/80 mmHg MAP ≈ 80 + 40/3 ≈ 93 mmHg.
Reference Table
| Value | Meaning |
|---|---|
| SBP | Peak pressure during contraction |
| DBP | Pressure during relaxation |
| MAP | Average perfusion pressure estimate |
FAQ
What is a normal MAP?
Roughly 70–100 mmHg for many adults; context matters.
White-coat effect?
Home or ambulatory monitoring may differ.
Pulse pressure?
SBP−DBP; useful alongside MAP.
When to recheck?
Repeat measurements on different days for trends.