Mean Arterial Pressure Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
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Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the systolic and diastolic readings.
- Read the MAP.
How it works
MAP = diastolic + (systolic − diastolic) ÷ 3.
Worked example
120/80. MAP ≈ 93.3 mmHg.
Common mistakes
- Swapping systolic and diastolic.
- Treating one reading as definitive — blood pressure varies.
Frequently asked questions
Is this medical advice?
No — it's an educational estimate. For any health concern, see a qualified clinician.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.