Health & Fitness
Mean Arterial Pressure (MAP) Calculator
Calculate mean arterial pressure from systolic and diastolic blood pressure.
Preparing your result…
What this calculator does
Calculates Mean Arterial Pressure (MAP) Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
MAP = DBP + ⅓(SBP − DBP)
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Estimated mean arterial pressure=diastolic BP+(systolic−diastolic)/3=(systolic+2diastolic)/3, mmHg. This approximates the arterial pressure waveform integral at typical resting heart rates.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Require sensible BP values and identify an approximation; tachycardia, irregular rhythm and altered waveforms affect accuracy. SBP/DBP alone do not give an exact time-averaged invasive MAP.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Systolic blood pressure (mmHg) | Diastolic blood pressure (mmHg) | Mean arterial pressure |
|---|---|---|---|
| Worked example | 120 | 80 | 93.3333 mmHg |
| Half the amounts | 60 | 40 | 46.6667 mmHg |
| Double the amounts | 240 | 150 | 180 mmHg |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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