How many foot of head in 1 mm Hg? The answer is 0.044614768135779. We assume you are converting between foot of head and millimeter mercury [0 °C]. You can view more details on each measurement unit: foot of head or mm Hg The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00033463823293911 foot of head, or 0.0075006157584566 mm Hg. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between feet of head and millimeters mercury. Type in your own numbers in the form to convert the units!
1 foot of head to mm Hg = 22.4141 mm Hg
2 foot of head to mm Hg = 44.82821 mm Hg
3 foot of head to mm Hg = 67.24231 mm Hg
4 foot of head to mm Hg = 89.65641 mm Hg
5 foot of head to mm Hg = 112.07051 mm Hg
6 foot of head to mm Hg = 134.48462 mm Hg
7 foot of head to mm Hg = 156.89872 mm Hg
8 foot of head to mm Hg = 179.31282 mm Hg
9 foot of head to mm Hg = 201.72693 mm Hg
10 foot of head to mm Hg = 224.14103 mm Hg
You can do the reverse unit conversion from mm Hg to foot of head, or enter any two units below:
The millimeter of mercury by definition is 133.322387415 Pa (13.5951 g/cm3 × 9.80665 m/s2 × 1 mm), which is approximated with known accuracies of density of mercury and standard gravity.
The torr is defined as 1/760 of one standard atmosphere, while the atmosphere is defined as 101325 pascals. Therefore, 1 Torr is equal to
101325/760 Pa. The decimal form of this fraction is approximately 133.322368421.
The relationship between the torr and the millimeter of mercury is:
1 Torr = 0.999999857533699 mmHg
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%). This small difference is negligible for most applications outside metrology.
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