Convert inches of mercury to millibars
1 inHg = 33.863886 mbar. Change the amount below, or read the formula and the reference table further down.
1 inch of mercury equals
millibars
1 inHg = 33.863886 mbar
The formula
Inches of mercury and millibars both measure pressure from the same zero, so a single multiplier does the job.
mbar = inHg × 33.8638864
Going the other way? Convert millibars to inches of mercury.
Inches of mercury to millibars table
Common values, rounded for reading.
| Inches of mercury (inHg) | Millibars (mbar) |
|---|---|
| 1 | 33.8639 |
| 2 | 67.7278 |
| 3 | 101.59 |
| 4 | 135.46 |
| 5 | 169.32 |
| 6 | 203.18 |
| 7 | 237.05 |
| 8 | 270.91 |
| 9 | 304.77 |
| 10 | 338.64 |
| 15 | 507.96 |
| 20 | 677.28 |
| 25 | 846.6 |
| 30 | 1,015.92 |
| 40 | 1,354.56 |
| 50 | 1,693.19 |
| 75 | 2,539.79 |
| 100 | 3,386.39 |
| 250 | 8,465.97 |
| 500 | 16,931.94 |
| 1,000 | 33,863.89 |
Questions people ask
- How many millibars are in a inch of mercury?
- One inch of mercury equals 33.8638864 millibars.
- How do I convert inches of mercury to millibars by hand?
- Multiply the number of inches of mercury by 33.8638864. For a rough check, 33.9 is close enough for most everyday use.
- What is 1 inch of mercury in millibars?
- 1 inch of mercury is 33.863886 millibars.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.