Mean Arterial Pressure Calculator
Convert a blood pressure reading into MAP and pulse pressure.
Your numbers
Your results
Mean Arterial Pressure Calculator by TheCalcTools
How the Mean Arterial Pressure Calculator works
Enter the systolic and diastolic pressure from a blood pressure reading.
MAP weights the diastolic pressure double, since the heart spends about two thirds of the cycle in diastole.
Pulse pressure is the difference between the two.
The formula
Worked example
Using the default values shown in the calculator:
| Systolic (mmHg) | 120 |
|---|---|
| Diastolic (mmHg) | 80 |
- MAP = (120 + 2 × 80) ÷ 3 = 93.3 mmHg.
- Pulse pressure = 120 − 80 = 40 mmHg.
Result:
| MAP (mmHg) | 93.3 |
|---|---|
| Pulse pressure (mmHg) | 40 |
Frequently asked questions
What is a normal MAP?
Roughly 70 to 100 mmHg. Clinicians often target at least 65 mmHg to keep organs perfused in critical illness.
Is this a diagnostic tool?
No. It is an educational calculator. Blood pressure should be interpreted by a health professional.
Sources and further reading
Related calculators
More in Health & Fitness · All calculators
This calculator gives general estimates for information and education. It is not medical advice and does not diagnose anything. Talk to a qualified health professional about your own situation. See our disclaimer.