A millibar is 100 pascals.
Millibars to mmHgs Converter — mbar to mmHg
Convert Millibar (mbar) to mmHg (mmHg) using the exact conversion factor (1 millibar = 0.7500615758 mmhg). See the formula, worked examples, and conversion table.
Millibars to mmHgs converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Millimeters of mercury at standard gravity.
Result = input x 100 / 133.3223874.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millibars to mmHgs
Millibar and mmHg both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: A millibar is 100 pascals, and millimeters of mercury at standard gravity.
Formula
mmhgs = millibars × 0.750061575846
This factor comes from each unit's defined relationship to the category's base unit: 1 millibar equals 100 base units, and 1 mmhg equals 133.322387415 base units, so dividing one by the other gives the direct millibar-to-mmhg factor of 0.750061575846.
Simple example
1 mbar × 0.7500615758 = 0.7500615758 mmHg
1 millibar = 0.7500615758 mmhgs.
Real-world example
35 mbar × 0.7500615758 = 26.25215515 mmHg
35 millibars = 26.25215515 mmhgs.
Conversion table
| Millibar (mbar) | mmHg (mmHg) |
|---|---|
| 1 mbar | 0.7500615758 mmHg |
| 5 mbar | 3.750307879 mmHg |
| 10 mbar | 7.500615758 mmHg |
| 25 mbar | 18.7515394 mmHg |
| 50 mbar | 37.50307879 mmHg |
| 100 mbar | 75.00615758 mmHg |
Reverse conversion: mmHg to Millibar
0.7500615758 mmHg × 1.333223874 = 0.9999999999 mbar
0.7500615758 mmhgs = 0.9999999999 millibars.
millibars = mmhgs × 1.33322387415
For a page dedicated to this direction, see mmHg to Millibar.
Understanding the Millibar (mbar)
A millibar is 100 pascals.
Understanding the mmHg (mmHg)
Millimeters of mercury at standard gravity.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many mmhgs are in 1 millibar?
1 millibar equals 0.7500615758 mmhgs, using the exact defined conversion factor rather than an estimate.
How do I convert millibar to mmhg?
Multiply the millibar value by 0.7500615758. The converter above does this instantly to whatever precision you set.
How do I convert mmhg back to millibar?
Use the reverse factor: 1 mmhg equals 1.333223874 millibars. You can also use the swap control in the converter above to flip the direction instantly.
What is a millibar?
Millibar (mbar) is a unit of pressure.
What is a mmhg?
mmHg (mmHg) is a unit of pressure.
Is the millibar to mmhg conversion exact?
Yes. Both millibar and mmhg are defined by fixed standards rather than physical artifacts, so the factor of 0.7500615758 used above is exact to as many digits as you choose to display.