Inches of mercury to Millibars Converter
Convert inches of mercury (inHg) to millibars (mbar) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Result
- Millibars
- 33.8639 mbar
How to use the inches of mercury to millibars converter
- Enter the inches of mercury (inHg).
- The results update as you type, or press Calculate.
- Read the millibars first, then the supporting figures below it.
Formula
Millibars = inches of mercury × 33.86389
Worked example
For example, with these inputs:
- Inches of mercury (inHg): 1
the calculator returns:
- Millibars: 33.8639 mbar
Inches of mercury to Millibars table
| Inches of mercury | Millibars |
|---|---|
| 1 inHg | 33.8639 mbar |
| 2 inHg | 67.7278 mbar |
| 5 inHg | 169.3194 mbar |
| 10 inHg | 338.6389 mbar |
| 20 inHg | 677.2778 mbar |
| 25 inHg | 846.5972 mbar |
| 50 inHg | 1,693.19 mbar |
| 100 inHg | 3,386.39 mbar |
| 250 inHg | 8,465.97 mbar |
| 500 inHg | 16,931.94 mbar |
| 1,000 inHg | 33,863.89 mbar |
About this conversion
Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Frequently asked questions
How many millibars are in one inches of mercury?
1 inHg = 33.8639 mbar.
How do I convert inHg to mbar?
Millibars = inches of mercury × 33.86389.