Megapascals to Inches of Mercury (MPa → inHg)
Formula
1 MPa = 295.2998016471232 inHgConversion Table
| MPa | inHg |
|---|---|
| 0 | 0 |
| 1.0000 | 295.30 |
| 2.0000 | 590.60 |
| 3.0000 | 885.90 |
| 4.0000 | 1,181.2 |
| 5.0000 | 1,476.5 |
| 6.0000 | 1,771.8 |
| 7.0000 | 2,067.1 |
| 8.0000 | 2,362.4 |
| 9.0000 | 2,657.7 |
| 10.000 | 2,953.0 |
| 11.000 | 3,248.3 |
| 12.000 | 3,543.6 |
| 13.000 | 3,838.9 |
| 14.000 | 4,134.2 |
| 15.000 | 4,429.5 |
| 16.000 | 4,724.8 |
| 17.000 | 5,020.1 |
| 18.000 | 5,315.4 |
| 19.000 | 5,610.7 |
| MPa | inHg |
|---|---|
| 20.000 | 5,906.0 |
| 21.000 | 6,201.3 |
| 22.000 | 6,496.6 |
| 23.000 | 6,791.9 |
| 24.000 | 7,087.2 |
| 25.000 | 7,382.5 |
| 26.000 | 7,677.8 |
| 27.000 | 7,973.1 |
| 28.000 | 8,268.4 |
| 29.000 | 8,563.7 |
| 30.000 | 8,859.0 |
| 31.000 | 9,154.3 |
| 32.000 | 9,449.6 |
| 33.000 | 9,744.9 |
| 34.000 | 10,040 |
| 35.000 | 10,335 |
| 36.000 | 10,631 |
| 37.000 | 10,926 |
| 38.000 | 11,221 |
| 39.000 | 11,517 |
| MPa | inHg |
|---|---|
| 40.000 | 11,812 |
| 41.000 | 12,107 |
| 42.000 | 12,403 |
| 43.000 | 12,698 |
| 44.000 | 12,993 |
| 45.000 | 13,288 |
| 46.000 | 13,584 |
| 47.000 | 13,879 |
| 48.000 | 14,174 |
| 49.000 | 14,470 |
| 50.000 | 14,765 |
| 51.000 | 15,060 |
| 52.000 | 15,356 |
| 53.000 | 15,651 |
| 54.000 | 15,946 |
| 55.000 | 16,241 |
| 56.000 | 16,537 |
| 57.000 | 16,832 |
| 58.000 | 17,127 |
| 59.000 | 17,423 |
| MPa | inHg |
|---|---|
| 60.000 | 17,718 |
| 61.000 | 18,013 |
| 62.000 | 18,309 |
| 63.000 | 18,604 |
| 64.000 | 18,899 |
| 65.000 | 19,194 |
| 66.000 | 19,490 |
| 67.000 | 19,785 |
| 68.000 | 20,080 |
| 69.000 | 20,376 |
| 70.000 | 20,671 |
| 71.000 | 20,966 |
| 72.000 | 21,262 |
| 73.000 | 21,557 |
| 74.000 | 21,852 |
| 75.000 | 22,147 |
| 76.000 | 22,443 |
| 77.000 | 22,738 |
| 78.000 | 23,033 |
| 79.000 | 23,329 |
Megapascals to Inches of Mercury Conversion
Converting Megapascals (MPa) to Inches of Mercury (inHg) is a common pressure conversion. 1 MPa equals 295.299802 inHg. For example, 100 MPa is equal to 29,529.980165 inHg.
Quick Mental Math: Megapascals to Inches of Mercury
Pressure units (atm, bar, psi, pascal) are diverse; use atmospheres as a reference tier.
Why is converting Megapascals to Inches of Mercury tricky?
Magnitude or direction confusion between megapascals and inches-of-mercury is the primary error source.
Quick Reference Values
1 MPa = 295.299802 inHg. 5 MPa = 1,476.499008 inHg. 10 MPa = 2,952.998016 inHg. 25 MPa = 7,382.495041 inHg. 50 MPa = 14,764.990082 inHg. 100 MPa = 29,529.980165 inHg.
What is Megapascals?
Megapascals (MPa) is a unit of pressure. The megapascal (MPa) equals one million pascals (Pa), the SI derived unit for pressure. It measures force per unit area, with 1 MPa equaling 1,000,000 N/m². The pascal is defined by the BIPM as one newton per square meter, making the megapascal a standard for high-pressure measurements in engineering and materials science[bipm-si-brochure]. The pascal unit was adopted by the CGPM in 1971, named after Blaise Pascal to honor his work in hydrostatics. The megapascal as a multiple of the pascal emerged with the widespread use of the SI system to quantify large pressure values in the 20th century[bipm-si-brochure]. Megapascals are widely used globally in engineering, construction, and materials testing. Countries adopting the metric system, including those in Europe and Asia, rely on MPa for tensile strength and pressure measurements. The ISO 80000 standard references MPa for expressing pressure in technical documentation[iso-80000].
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].
Common Misspellings
People often search for this conversion using these alternate spellings: mega pascal, megapascel, megapascal, megapascall, megapascal, inch of mercury, inch-mercury, in hg, inches mercury. All of these refer to the Megapascals to Inches of Mercury conversion.