Work out MAP from systolic and diastolic pressure, plus pulse pressure and the blood pressure category.
The method behind this calculator
Mean arterial pressure is the average pressure driving blood into the tissues over a full cardiac cycle. Because the heart spends roughly twice as long in diastole as in systole, the formula weights diastolic pressure twice as heavily.
MAP is a better indicator of organ perfusion than systolic pressure alone, which is why it appears in critical care targets. A value around 60 is generally taken as the lower bound for adequate perfusion.
Getting your answer
- Enter your systolic reading (the higher number).
- Enter your diastolic reading (the lower number).
- Optionally add heart rate for the rate pressure product.
The maths behind it
A worked example
Take the starting scenario, a heart rate of 70. That gives a mean arterial pressure of 93.3. Underneath, Pulse pressure comes out at 40 mmHg and Blood pressure category at Stage 1 hypertension range. Change any field and every figure updates as you type.