Mercury barometer A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high. Currently, it is defined as exactly 133.322 387 415 pascals, or approximately [a] 1 torr = 1 760 atmosphere = 101 325 760 pascals. [1][2] It is denoted mmHg[3] or mm Hg. [4][2] Although not an SI unit, the ...
Millimeters of mercury is a non-SI unit of Pressure. The symbol for millimeters of mercury is mmHg. It is equal to a pressure of 133.3224 pascals or 0.00131579 atmospheres. 1 mmHg is also equal to 1 Torr.
If you'd like access to your account, some bank accounts have a debit card or ATM card. ATM cards are solely for ATM access, but debit cards let you purchase items. When you are managing a bank ...
Demystify mmHg, the critical unit used in blood pressure readings. Learn the physics and interpret the health implications of your results.
Blood pressure is the amount of force your blood uses to get through your arteries. A normal blood pressure reading for most adults is below 120/80 mmHg.
The millimetre column of mercury is a unit of pressure that is derived from the traditional way of measuring pressure using a mercury barometer. It refers to the pressure exerted by a column of mercury one millimetre high. The unit designation for a millimetre column of mercury is mmHg.
The mmHg is often described as synonymous with the torr, but it differs from it, although “by less than 2 × 10⁻⁷ Torr.”¹ According to the current national standard in the United States², the millimeter of mercury is not to be used. The pascal should be used instead.