Mean Arterial Pressure (MAP) Calculator
Enter your blood pressure to calculate your mean arterial pressure, the average pressure in your arteries over one heartbeat.
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Mean arterial pressure
93.3mmHg
Usual range (70–100)- With Meaney
- 96.5 mmHg
- Pulse pressure
- 40 mmHg
An estimate for general information, not medical advice.
Show working
- 80 + (120 − 80) ÷ 3 = 93.3
How to use
- Measure your blood pressure at rest.
- Enter the systolic and diastolic numbers.
- Read your MAP; choose the Meaney formula under More options if you like.
Good to know
Because the heart spends longer relaxing than contracting, MAP sits closer to the diastolic number: MAP = diastolic + (systolic − diastolic) ÷ 3. At 120/80, MAP ≈ 93 mmHg.
The Meaney formula (2000) uses 0.412 instead of one third, which matched measured MAP slightly better in studies: at 120/80 it gives about 96.5 mmHg. Both are shown so you can compare.
About 70–100 mmHg is the usual resting range in healthy adults. MAP is used mainly by doctors, for example in hospital care; for everyday checks the BP category matters more. Unusual values with symptoms such as dizziness or fainting need medical attention.
Questions
What is a normal MAP?
About 70–100 mmHg at rest for healthy adults.
How is MAP calculated?
Diastolic plus one third of the pulse pressure. For 130/85: 85 + 45 ÷ 3 = 100 mmHg.
Why is MAP not the simple average?
The heart spends about two thirds of each beat in the relaxed (diastolic) phase, so the average leans towards diastolic.
Is a high MAP dangerous?
A high MAP usually reflects high blood pressure. Check your BP category and talk to a doctor if readings stay high.
Is my data saved?
No. Everything is calculated on your device.