1 millimeter of mercury [mmHg] = 1.333224 millibar [mbar]
Example: 1 millimeter of mercury [mmHg] equals 1.333224 millibar [mbar].
Examples
1 millimeter of mercury [mmHg] = 1.333224 millibar [mbar]
2 millimeter of mercury [mmHg] = 2.666448 millibar [mbar]
5 millimeter of mercury [mmHg] = 6.666119 millibar [mbar]
10 millimeter of mercury [mmHg] = 13.332239 millibar [mbar]
20 millimeter of mercury [mmHg] = 26.664477 millibar [mbar]
25 millimeter of mercury [mmHg] = 33.330597 millibar [mbar]
Practical Uses for millimeter mercury to millibar
tire inflationcompressors and pumpsHVAC and plumbingengineering specifications
Sources and Accuracy
Pressure conversions use pascal as the reference unit and include common engineering, weather, tire, and laboratory pressure units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
About These Units
millimeter of mercury [mmHg]
Definition
The millimeter of mercury (mmHg) is a pressure unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use millimeter of mercury when comparing pressure values, checking specifications, converting between systems, or preparing quick estimates.
millibar [mbar]
Definition
The millibar (mbar) is a pressure unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use millibar when comparing pressure values, checking specifications, converting between systems, or preparing quick estimates.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is millimeter of mercury [mmHg].
Confirm the target unit is millibar [mbar].
Read the instant result and formula.
Where This Conversion Is Used
tire inflationcompressors and pumpsHVAC and plumbingengineering specifications