Mean Arterial Pressure Calculator
Measure Blood Pressure Accurately
Use a smart arm blood pressure monitor that provides accurate systolic and diastolic readings via Wi-Fi or Bluetooth for reliable MAP tracking.
Shop Withings BPM VisionBlood Pressure Categories (AHA)
| Category | Systolic (mmHg) | Diastolic (mmHg) |
|---|---|---|
| Normal | < 120 | < 80 |
| Elevated | 120–129 | < 80 |
| Hypertension – Stage 1 | 130–139 or | 80–89 |
| Hypertension – Stage 2 | ≥ 140 or | ≥ 90 |
| Hypertensive Crisis (seek medical care) | > 180 and/or | > 120 |
Categories per American Heart Association; diagnosis depends on multiple proper readings and clinical context.
About Mean Arterial Pressure (MAP) Calculator
Mean Arterial Pressure (MAP) is an estimate of the average arterial pressure across a full cardiac cycle and is commonly used as a
proxy for tissue perfusion. A standard bedside approximation is
MAP = (SBP + 2 × DBP) / 3, where SBP is systolic and
DBP is diastolic pressure. This tool also reports
pulse pressure (PP = SBP − DBP).
How to measure
- Sit quietly 5 minutes, back supported, feet flat, arm at heart level.
- Use a correctly sized upper-arm cuff; avoid caffeine/exercise 30 minutes prior.
- Take 2–3 readings 1 minute apart and use the average for SBP/DBP.
How to use this MAP calculator
- Enter averaged SBP and DBP (mmHg) from a proper measurement.
- Click Calculate to see MAP and PP.
- Use results for education only; consult a clinician for interpretation.
Quick context
- Informational adult MAP range is often cited around ~70–100 mmHg.
- MAP < ~60–65 mmHg may be inadequate for organ perfusion in critical illness (clinical context required).
- BP categories (normal, elevated, hypertension) are defined by SBP/DBP thresholds—not MAP alone.
Disclaimer: This calculator provides educational estimates only and is not a diagnostic device. Do not use it to guide treatment decisions without professional medical advice.
FAQ
- How do you calculate Mean Arterial Pressure (MAP)? MAP is commonly estimated as (SBP + 2 × DBP) ÷ 3, because the heart spends more time in diastole than systole.
- What is a normal MAP range? A typical MAP for healthy adults is around 70–100 mmHg. Values below ~60 mmHg may be inadequate for organ perfusion; consult a clinician for interpretation.
- Why does the formula weight DBP twice? The heart spends longer in diastole than in systole during each cardiac cycle, so diastolic pressure contributes more to average arterial pressure.
- Does MAP replace AHA/ACC blood pressure categories? No. BP categories are defined by systolic and diastolic thresholds. MAP is an additional indicator related to tissue perfusion and cardiovascular status.
- What is pulse pressure and why show it? Pulse pressure (PP) is SBP − DBP. A wider PP can suggest arterial stiffness or other changes; it is informational only and not diagnostic by itself.
Disclaimer
The calculators provided on this site are for educational and informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for evaluation and management of blood pressure and cardiovascular risk.