Millimeters of Mercury to Millibars (mmHg → mbar)
Formula
1 mmHg = 1.33322 mbarConversion Table
| mmHg | mbar |
|---|---|
| 0 | 0 |
| 1.0000 | 1.3332 |
| 2.0000 | 2.6664 |
| 3.0000 | 3.9997 |
| 4.0000 | 5.3329 |
| 5.0000 | 6.6661 |
| 6.0000 | 7.9993 |
| 7.0000 | 9.3325 |
| 8.0000 | 10.666 |
| 9.0000 | 11.999 |
| 10.000 | 13.332 |
| 11.000 | 14.665 |
| 12.000 | 15.999 |
| 13.000 | 17.332 |
| 14.000 | 18.665 |
| 15.000 | 19.998 |
| 16.000 | 21.332 |
| 17.000 | 22.665 |
| 18.000 | 23.998 |
| 19.000 | 25.331 |
| mmHg | mbar |
|---|---|
| 20.000 | 26.664 |
| 21.000 | 27.998 |
| 22.000 | 29.331 |
| 23.000 | 30.664 |
| 24.000 | 31.997 |
| 25.000 | 33.331 |
| 26.000 | 34.664 |
| 27.000 | 35.997 |
| 28.000 | 37.330 |
| 29.000 | 38.663 |
| 30.000 | 39.997 |
| 31.000 | 41.330 |
| 32.000 | 42.663 |
| 33.000 | 43.996 |
| 34.000 | 45.329 |
| 35.000 | 46.663 |
| 36.000 | 47.996 |
| 37.000 | 49.329 |
| 38.000 | 50.662 |
| 39.000 | 51.996 |
| mmHg | mbar |
|---|---|
| 40.000 | 53.329 |
| 41.000 | 54.662 |
| 42.000 | 55.995 |
| 43.000 | 57.328 |
| 44.000 | 58.662 |
| 45.000 | 59.995 |
| 46.000 | 61.328 |
| 47.000 | 62.661 |
| 48.000 | 63.995 |
| 49.000 | 65.328 |
| 50.000 | 66.661 |
| 51.000 | 67.994 |
| 52.000 | 69.327 |
| 53.000 | 70.661 |
| 54.000 | 71.994 |
| 55.000 | 73.327 |
| 56.000 | 74.660 |
| 57.000 | 75.994 |
| 58.000 | 77.327 |
| 59.000 | 78.660 |
| mmHg | mbar |
|---|---|
| 60.000 | 79.993 |
| 61.000 | 81.326 |
| 62.000 | 82.660 |
| 63.000 | 83.993 |
| 64.000 | 85.326 |
| 65.000 | 86.659 |
| 66.000 | 87.993 |
| 67.000 | 89.326 |
| 68.000 | 90.659 |
| 69.000 | 91.992 |
| 70.000 | 93.325 |
| 71.000 | 94.659 |
| 72.000 | 95.992 |
| 73.000 | 97.325 |
| 74.000 | 98.658 |
| 75.000 | 99.992 |
| 76.000 | 101.32 |
| 77.000 | 102.66 |
| 78.000 | 103.99 |
| 79.000 | 105.32 |
Millimeters of Mercury to Millibars Conversion
Converting Millimeters of Mercury (mmHg) to Millibars (mbar) is a common pressure conversion. 1 mmHg equals 1.33322 mbar. For example, 100 mmHg is equal to 133.322 mbar.
Quick Reference Values
1 mmHg = 1.33322 mbar. 5 mmHg = 6.6661 mbar. 10 mmHg = 13.3322 mbar. 25 mmHg = 33.3305 mbar. 50 mmHg = 66.661 mbar. 100 mmHg = 133.322 mbar.
What is Millimeters of Mercury?
Millimeters of Mercury (mmHg) is a unit of pressure. Millimeters of mercury (mmHg) measure pressure based on a column of mercury 1 millimeter high. It equals exactly 133.322387415 pascals, the SI derived unit for pressure, as defined by international standards. This unit is widely used in medical and meteorological fields for blood pressure and barometric pressure readings [nist-si-guide]. The mmHg unit originated from the mercury barometer invented by Evangelista Torricelli in 1643. It became standardized as a pressure unit because mercury's density allowed precise atmospheric pressure measurements. The adoption of the exact pascal conversion was formalized by the BIPM in the 20th century [bipm-si-brochure]. Millimeters of mercury remain common in healthcare worldwide, especially for blood pressure monitoring in the US and Europe. Meteorologists also use mmHg in weather reporting, though pascals are preferred in scientific contexts. Regulatory standards by ISO and NIST recognize mmHg for specific applications [nist-sp-811].
What is Millibars?
Millibars (mbar) is a unit of pressure. The millibar is a unit of pressure equal to 100 pascals or 0.1 kilopascals. It is one-thousandth of a bar, which is defined as exactly 100,000 pascals in the International System of Units (SI). The millibar is commonly used in meteorology to measure atmospheric pressure and is recognized under ISO standards for pressure units [iso-80000]. The bar and its subunit, the millibar, were introduced by the German meteorologist Heinrich von Helmholtz in the early 20th century. The millibar was adopted as a practical unit for meteorological pressure measurements before SI units were formalized [nist-sp-811]. Millibars remain widely used in weather reports and aviation worldwide, especially in countries like the United States, United Kingdom, and Australia. Meteorological agencies, including NOAA and the UK Met Office, use millibars alongside pascals for atmospheric pressure [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: millimeter of mercury, mm hg, millimeters mercury, mmhg, millimeters of mercery, milibars, milibars, millibar, milibar. All of these refer to the Millimeters of Mercury to Millibars conversion.