Table Of Contents
Millimeters of mercury to millibar Conversion
1 millimeters of mercury (mmHg) is equal to 1.333223874 millibar (mbar).
1 mmHg = 1.333223874 mbar
or
1 mbar = 0.7500615758 mmHg
Formula
To convert a pressure from millimeters of mercury (mmHg) to millibar (mbar), multiply the pressure in millimeters of mercury by 1.333223874
p(mbar) = p(mmHg) × 1.333223874
Examples:
Convert 10 millimeters of mercury to millibar:
p(mbar) = 10mmHg × 1.333223874 = 13.33223874 mbar
Conversion table
| Millimeters of mercury (mmHg) | Millibar (mbar) |
|---|---|
| 1 mmHg | 1.333223874 mbar |
| 2 mmHg | 2.666447748 mbar |
| 3 mmHg | 3.999671622 mbar |
| 5 mmHg | 6.666119371 mbar |
| 10 mmHg | 13.332238742 mbar |
| 20 mmHg | 26.664477483 mbar |
| 25 mmHg | 33.330596854 mbar |
| 50 mmHg | 66.661193708 mbar |
| 100 mmHg | 133.322387415 mbar |
| 250 mmHg | 333.305968538 mbar |
| 500 mmHg | 666.611937075 mbar |
| 1000 mmHg | 1333.22387415 mbar |
| Millibar (mbar) | Millimeters of mercury (mmHg) |
|---|---|
| 1 mbar | 0.750061576 mmHg |
| 2 mbar | 1.500123152 mmHg |
| 3 mbar | 2.250184728 mmHg |
| 5 mbar | 3.750307879 mmHg |
| 10 mbar | 7.500615758 mmHg |
| 20 mbar | 15.001231517 mmHg |
| 25 mbar | 18.751539396 mmHg |
| 50 mbar | 37.503078792 mmHg |
| 100 mbar | 75.006157585 mmHg |
| 250 mbar | 187.515393961 mmHg |
| 500 mbar | 375.030787923 mmHg |
| 1000 mbar | 750.061575846 mmHg |
Frequently asked questions
How do I convert millimeters of mercury to millibar?
Multiply the value in millimeters of mercury by 1.333223874 to get the result in millibar. For example, 5 mmHg × 1.333223874 = 6.666119371 mbar.
How many millibar are in 1 millimeters of mercury?
1 millimeters of mercury (mmHg) is equal to 1.333223874 millibar (mbar).
How do I convert millibar back to millimeters of mercury?
Use the inverse operation: divide the value in millibar by 1.333223874 to get the result in millimeters of mercury.
How accurate is the millimeters of mercury to millibar conversion?
The converter multiplies by the conversion factor 1.333223874 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- ISO 80000-4:2019 — Quantities and units — Part 4: Mechanics
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- Resolution 4 of the 10th CGPM (1954): Definition of the standard atmosphere