Inches of Mercury to Bars (inHg → bar)
Formula
1 inHg = 0.03386389 barConversion Table
| inHg | bar |
|---|---|
| 0 | 0 |
| 1.0000 | 0.033864 |
| 2.0000 | 0.067728 |
| 3.0000 | 0.10159 |
| 4.0000 | 0.13546 |
| 5.0000 | 0.16932 |
| 6.0000 | 0.20318 |
| 7.0000 | 0.23705 |
| 8.0000 | 0.27091 |
| 9.0000 | 0.30478 |
| 10.000 | 0.33864 |
| 11.000 | 0.37250 |
| 12.000 | 0.40637 |
| 13.000 | 0.44023 |
| 14.000 | 0.47409 |
| 15.000 | 0.50796 |
| 16.000 | 0.54182 |
| 17.000 | 0.57569 |
| 18.000 | 0.60955 |
| 19.000 | 0.64341 |
| inHg | bar |
|---|---|
| 20.000 | 0.67728 |
| 21.000 | 0.71114 |
| 22.000 | 0.74501 |
| 23.000 | 0.77887 |
| 24.000 | 0.81273 |
| 25.000 | 0.84660 |
| 26.000 | 0.88046 |
| 27.000 | 0.91433 |
| 28.000 | 0.94819 |
| 29.000 | 0.98205 |
| 30.000 | 1.0159 |
| 31.000 | 1.0498 |
| 32.000 | 1.0836 |
| 33.000 | 1.1175 |
| 34.000 | 1.1514 |
| 35.000 | 1.1852 |
| 36.000 | 1.2191 |
| 37.000 | 1.2530 |
| 38.000 | 1.2868 |
| 39.000 | 1.3207 |
| inHg | bar |
|---|---|
| 40.000 | 1.3546 |
| 41.000 | 1.3884 |
| 42.000 | 1.4223 |
| 43.000 | 1.4561 |
| 44.000 | 1.4900 |
| 45.000 | 1.5239 |
| 46.000 | 1.5577 |
| 47.000 | 1.5916 |
| 48.000 | 1.6255 |
| 49.000 | 1.6593 |
| 50.000 | 1.6932 |
| 51.000 | 1.7271 |
| 52.000 | 1.7609 |
| 53.000 | 1.7948 |
| 54.000 | 1.8287 |
| 55.000 | 1.8625 |
| 56.000 | 1.8964 |
| 57.000 | 1.9302 |
| 58.000 | 1.9641 |
| 59.000 | 1.9980 |
| inHg | bar |
|---|---|
| 60.000 | 2.0318 |
| 61.000 | 2.0657 |
| 62.000 | 2.0996 |
| 63.000 | 2.1334 |
| 64.000 | 2.1673 |
| 65.000 | 2.2012 |
| 66.000 | 2.2350 |
| 67.000 | 2.2689 |
| 68.000 | 2.3027 |
| 69.000 | 2.3366 |
| 70.000 | 2.3705 |
| 71.000 | 2.4043 |
| 72.000 | 2.4382 |
| 73.000 | 2.4721 |
| 74.000 | 2.5059 |
| 75.000 | 2.5398 |
| 76.000 | 2.5737 |
| 77.000 | 2.6075 |
| 78.000 | 2.6414 |
| 79.000 | 2.6752 |
Inches of Mercury to Bars Conversion
Converting Inches of Mercury (inHg) to Bars (bar) is a common pressure conversion. 1 inHg equals 0.033864 bar. For example, 100 inHg is equal to 3.386389 bar.
Quick Reference Values
1 inHg = 0.033864 bar. 5 inHg = 0.169319 bar. 10 inHg = 0.338639 bar. 25 inHg = 0.846597 bar. 50 inHg = 1.693195 bar. 100 inHg = 3.386389 bar.
What is Inches of Mercury?
Inches of Mercury (inHg) is a unit of pressure. Inches of mercury measure pressure as the height of a mercury column in inches exerted by atmospheric or other pressures. One inch of mercury equals exactly 3,386.389 pascals (Pa). This unit is commonly used in barometry and aviation altimetry [nist-si-guide]. The unit originates from mercury barometers developed by Evangelista Torricelli in 1643. Measuring pressure via mercury column height became standard in meteorology and aviation. The inch unit was adapted for use in English-speaking countries [nist-si-guide]. Inches of mercury are used mainly in the United States and Canada for weather reports and aircraft altimeters. Internationally, the pascal is preferred, but inHg remains common in aviation and HVAC industries [nist-si-guide].
What is Bars?
Bars (bar) is a unit of pressure. The bar is a unit of pressure equal to exactly 100,000 pascals (Pa). It is used to measure pressure or stress and is slightly less than the standard atmospheric pressure of 101,325 Pa. The bar is not an SI unit but is accepted for use with SI by the BIPM due to its convenience in many engineering fields [bipm-si-brochure]. The bar was introduced by the Norwegian meteorologist Vilhelm Bjerknes in 1909 to simplify atmospheric pressure measurements. It gained wider recognition in the mid-20th century and was formally accepted for use with the SI by the BIPM to provide a practical unit for pressure [bipm-si-brochure]. The bar is widely used in meteorology, engineering, and automotive industries worldwide, especially in Europe and Asia. It remains common in barometric pressure readings and tire pressure specifications, although the pascal is the SI base unit [bipm-si-brochure].
Common Misspellings
People often search for this conversion using these alternate spellings: inch of mercury, inch-mercury, in hg, inches mercury, barres, barre, bars pressure. All of these refer to the Inches of Mercury to Bars conversion.