Millibar to mmHg Converter
Precise medical and meteorological conversion from mbar to millimeters of mercury. Includes reference ranges for blood pressure and altitude.
Precise Conversion
About
Millimeters of mercury (mmHg) remains the standard unit for blood pressure measurement and aviation altimetry settings. However, raw sensor data or weather reports often arrive in millibars (mbar). This tool allows medical professionals, pilots, and researchers to convert between these units with high precision. Small deviations in mmHg can signify hypertension in a patient or an incorrect altitude setting in an aircraft. The underlying algorithm uses the precise physical definition of mercury density to ensure valid output for diagnostic and safety applications.
Formulas
The relationship between millibars and mmHg is defined by the density of mercury under standard gravity.
Alternatively, the standard atmosphere definition relates them as:
Reference Data
| Context | mbar | mmHg | Significance |
|---|---|---|---|
| Low Vacuum | 10 | 7.50 | Lab Equipment |
| Diastolic (Low) | 80 | 60.00 | Hypotension |
| Diastolic (Normal) | 106 | 80.00 | Healthy Heart |
| Systolic (Normal) | 160 | 120.00 | Healthy Heart |
| Systolic (High) | 213 | 160.00 | Hypertension Stage 2 |
| Airline Cabin | 750 | 562.55 | ~8000ft Altitude |
| Standard Atmosphere | 1013.25 | 760.00 | Sea Level |
| Hyperbaric Chamber | 2000 | 1500.12 | Therapy |