Mean Arterial Pressure Calculator
Estimate mean arterial pressure from systolic and diastolic pressure.
Mean Arterial Pressure measurements
Enter your values, then calculate.
Result
How to calculate mean arterial pressure
Mean arterial pressure (MAP) is a clinical measure of average blood pressure during a cardiac cycle, weighted toward diastolic pressure since the heart spends more time in that phase.
How the calculation works
MAP = (Systolic + 2×Diastolic) ÷ 3.
Example
Systolic 120 mmHg, diastolic 80 mmHg: (120+2×80)÷3 = (120+160)÷3 = 280÷3 ≈ 93.3 mmHg.
Frequently asked questions
How is Result calculated?
Result = ([Systolic pressure] + 2 × [Diastolic pressure]) ÷ 3.
Is the Mean Arterial Pressure Calculator free to use?
Yes — every calculator on Simple Calculator Tools is free, runs in your browser, and does not require an account.
Mean Arterial Pressure Calculator
MAP = (Systolic + 2×Diastolic) ÷ 3.
Let's understand your mean arterial pressure result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Mean Arterial Pressure
- A MAP of roughly 70-100 mmHg is often cited as necessary to adequately perfuse vital organs, though target ranges depend on individual clinical context.
- This formula weights diastolic pressure more heavily (2x) than systolic, reflecting that the heart spends roughly two-thirds of each cardiac cycle in diastole.
Common Mean Arterial Pressure Mistakes to Avoid
- Treating MAP as a simple average of systolic and diastolic pressure ((sys+dia)÷2), which is a different, less accurate calculation than the properly weighted formula.
When to Use This Calculator
Mean arterial pressure (MAP) is a clinical measure of average blood pressure during a cardiac cycle, weighted toward diastolic pressure since the heart spends more time in that phase.