What is mm Hg in pressure?

What is mm Hg in pressure?

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, and currently defined as exactly 133.322387415 pascals. It is denoted mmHg or mm Hg.

What is standard mmHg?

Standard temperature and pressure, abbreviated STP, refers to nominal conditions in the atmosphere at sea level. Standard pressure supports 760 millimeters in a mercurial barometer (760 mmHg). This is about 29.9 inches of mercury, and represents approximately 14.7 pounds per inch (14.7 lb/in2).

How do you find mm Hg?

As discussed earlier we know that one millimetre of mercury is the pressure exerted by a 1mm vertical column of mercury at 0 degree Celsius. And we also know that one mmHg is also equal to 1 torr, which is 1 / 760 of atmospheric pressure (atm) that is 1 atm = 760 mmHg.

What is mmHg used for?

MmHg means millimetres of mercury (Hg = mercury) and is used in EU member states and Switzerland to measure the pressure of body fluids, such as eg blood pressure. It goes back to a time when pressure was measured by means of a mercury column.

What numbers are low blood pressure?

In severe cases, low blood pressure can be life-threatening. A blood pressure reading lower than 90 millimeters of mercury (mm Hg) for the top number (systolic) or 60 mm Hg for the bottom number (diastolic) is generally considered low blood pressure.

What is a good blood pressure for a woman?

Optimal blood pressure is a reading of lower than 120/80. When your blood pressure numbers are consistently greater than 135/85, you’re considered to have high blood pressure, or hypertension (but if you have diabetes or kidney disease, 130/80 is considered a high reading).

Is Hg the same as mmHg?

Two units of barometric pressure are millimeters of mercury (mm Hg) and inches of mercury (in Hg). Multiply the pressure in mm Hg by 0.03937 to convert to in Hg. For example, if you have 29 mm Hg, multiply 29 by 0.03937 to get 1.14 in Hg. Divide the pressure of mm Hg by 25.4 to convert to in Hg.

How do you convert inHg to mmHg?

1 inch = 25.4 mm. mmHg value = inHg value x 25.4.

What is the normal atmospheric pressure in ATM?

Normal atmospheric pressure is 14.7 psi, which means that a column of air one square inch in area rising from the Earth’s atmosphere to space weighs 14.7 pounds. Normal atmospheric pressure is defined as 1 atmosphere. 1 atm = 14.6956 psi = 760 torr.

How do you convert inches to ATM?

To convert 28 inches of mercury to atmospheres, divide 28 by the 29.92. This yields a result of 0.936 atmosphere. To convert back to inches, multiply 0.936 by 29.92. The conversion requires adjustment at temperatures higher or lower than zero degrees Celsius.

What is 29 inHg (inches of mercury) in words?

Convert pressure: 29.9 inHg (inches of mercury) to The pressure value 29.9 inHg (inches of mercury) in words is “twenty-nine point nine inHg (inches of mercury)”. This is simple to use online converter of weights and measures.

What is the difference between 1 mmHg and 1 torr?

1 mmHg = 1.000000142466321 Torr. The difference between one millimeter of mercury and one torr, as well as between one atmosphere (101.325 kPa) and 760 mmHg (101.3250144354 kPa), is less than one part in seven million (or less than 0.000015%).

What is the difference between 10 mmHg and Psi?

1 mmHg to psi = 0.01934 psi 10 mmHg to psi = 0.19337 psi 20 mmHg to psi = 0.38674 psi 30 mmHg to psi = 0.5801 psi

What is the ratio of Hg to mm Hg?

1 in Hg to mm Hg = 25.4 mm Hg 2 in Hg to mm Hg = 50.80001 mm Hg 3 in Hg to mm Hg = 76.20001 mm Hg 4 in Hg to mm Hg = 101.60001 mm Hg