UnitChart

Convert inHg to millibars

inches of mercury to millibars. Enter a value to convert, or use the inHg to millibars chart further down the page.

1 inHg = 33.8639 mbar

1 inch of mercury equals 33.8639 millibars. Going the other way, 1 millibar = 0.02953 inches of mercury.

Check this before you rely on it. This converter is provided free and without warranty, and its results are not professional advice.

How to convert inHg to millibars

To convert inches of mercury to millibars, multiply the inch of mercury value by 33.8638864. You can also divide by 0.0295299833 to get the same answer.

mbar = inHg × 33.8638864

Worked example

Convert 15 inHg to millibars:

15 inHg = 507.958 mbar

inHg to millibars conversion chart

Use this inHg to millibars table for quick reference without typing anything.

inHg to millibars conversion table
inches of mercury (inHg)millibars (mbar)
0.01 inHg0.338639 mbar
0.1 inHg3.38639 mbar
1 inHg33.8639 mbar
2 inHg67.7278 mbar
3 inHg101.592 mbar
5 inHg169.319 mbar
10 inHg338.639 mbar
20 inHg677.278 mbar
50 inHg1,693.19 mbar
100 inHg3,386.39 mbar
1,000 inHg33,863.9 mbar

What is a inch of mercury?

An inch of mercury is about 3,386.39 pascals. Aircraft altimeters and US weather reports use it; the standard sea-level setting is 29.92 inHg.

What is a millibar?

A millibar is 100 pascals, identical to a hectopascal. It is the standard unit in weather reports.

Frequently asked questions

How many millibars are in a inch of mercury?

1 inHg equals 33.8639 millibars. Going the other way, 1 millibars is 0.02953 inHg.

How do you convert inHg to millibars?

To convert inches of mercury to millibars, multiply the inch of mercury value by 33.8638864. You can also divide by 0.0295299833 to get the same answer.

What is 10 inHg in millibars?

10 inHg equals 338.639 millibars. The conversion chart on this page lists the other values people look up most often.

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