inHg to bar Converter

How to convert inches of mercury to bars

Formulabar = inHg × 0.0338638864

Multiply the value in inches of mercury by 0.0338638864. To go the other way, multiply by 29.5299833 (or divide by 0.0338638864).

An inch of mercury is smaller than a bar: it takes 29.5299833 inches of mercury to make one bar.

Worked examples

1 inch of mercury1 inHg × 0.0338638864 = 0.0338638864 bar
5 inches of mercury5 inHg × 0.0338638864 = 0.169319432 bar
10 inches of mercury10 inHg × 0.0338638864 = 0.338638864 bar
20 inches of mercury20 inHg × 0.0338638864 = 0.6772777281 bar
100 inches of mercury100 inHg × 0.0338638864 = 3.38638864 bar

Inches of mercury to bars conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Inches of mercury to bars: 0.1–10 inHg
Inches of mercury (inHg)	Bars (bar)
0.1 inHg	0.0033863886 bar
0.25 inHg	0.0084659716 bar
0.5 inHg	0.016931943 bar
1 inHg	0.033863886 bar
2 inHg	0.067727773 bar
3 inHg	0.10159166 bar
4 inHg	0.13545555 bar
5 inHg	0.16931943 bar
6 inHg	0.20318332 bar
7 inHg	0.2370472 bar
8 inHg	0.27091109 bar
9 inHg	0.30477498 bar
10 inHg	0.33863886 bar

Inches of mercury to bars: 12–1,000 inHg
Inches of mercury (inHg)	Bars (bar)
12 inHg	0.40636664 bar
15 inHg	0.5079583 bar
20 inHg	0.67727773 bar
25 inHg	0.84659716 bar
30 inHg	1.0159166 bar
40 inHg	1.3545555 bar
50 inHg	1.6931943 bar
75 inHg	2.5397915 bar
100 inHg	3.3863886 bar
250 inHg	8.4659716 bar
500 inHg	16.931943 bar
1,000 inHg	33.863886 bar

About the units

Inch of mercury (inHg)

About 3,386.39 Pa. US weather reports and aircraft altimeters use inches of mercury (standard is 29.92 inHg). One inch of mercury equals 3,386.38864 pascals (Pa).

Bar (bar)

Exactly 100,000 Pa, very close to one atmosphere. Common for tyres, scuba tanks and espresso machines (9 bar).

Frequently asked questions

How many bars are in one inch of mercury?

There are 0.0338638864 bars in one inch of mercury, and this value is exact by definition.

How do I convert inches of mercury to bars?

Multiply the number of inches of mercury by 0.0338638864. For example, 10 inHg × 0.0338638864 = 0.338638864 bar.

How many inches of mercury are in one bar?

One bar equals 29.5299833 inches of mercury. That is the reverse factor, 1 ÷ 0.0338638864.

What is 10 inches of mercury in bars?

10 inHg = 0.338638864 bar.

Is this inHg to bar converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.