Convert millimeters of mercury to millibars
1 mmHg = 1.333224 mbar. Change the amount below, or read the formula and the reference table further down.
1 millimeter of mercury equals
millibars
1 mmHg = 1.333224 mbar
The formula
Millimeters of mercury and millibars both measure pressure from the same zero, so a single multiplier does the job.
mbar = mmHg × 1.33322387
Going the other way? Convert millibars to millimeters of mercury.
Millimeters of mercury to millibars table
Common values, rounded for reading.
| Millimeters of mercury (mmHg) | Millibars (mbar) |
|---|---|
| 1 | 1.3332 |
| 2 | 2.6664 |
| 3 | 3.9997 |
| 4 | 5.3329 |
| 5 | 6.6661 |
| 6 | 7.9993 |
| 7 | 9.3326 |
| 8 | 10.6658 |
| 9 | 11.999 |
| 10 | 13.3322 |
| 15 | 19.9984 |
| 20 | 26.6645 |
| 25 | 33.3306 |
| 30 | 39.9967 |
| 40 | 53.329 |
| 50 | 66.6612 |
| 75 | 99.9918 |
| 100 | 133.32 |
| 250 | 333.31 |
| 500 | 666.61 |
| 1,000 | 1,333.22 |
Questions people ask
- How many millibars are in a millimeter of mercury?
- One millimeter of mercury equals 1.33322387 millibars.
- How do I convert millimeters of mercury to millibars by hand?
- Multiply the number of millimeters of mercury by 1.33322387. For a rough check, 1.3 is close enough for most everyday use.
- What is 1 millimeter of mercury in millibars?
- 1 millimeter of mercury is 1.333224 millibars.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.