How many millimeter mercury in 1 foot of head?
The answer is 22.414102813594.
We assume you are converting between and foot of head.
You can view more details on each measurement unit:
millimeter mercury or foot of head
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.00033463823293911 foot of head.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimeters mercury and feet of head.
Type in your own numbers in the form to convert the units!
1 millimeter mercury to foot of head = 0.04461 foot of head
10 millimeter mercury to foot of head = 0.44615 foot of head
20 millimeter mercury to foot of head = 0.8923 foot of head
30 millimeter mercury to foot of head = 1.33844 foot of head
40 millimeter mercury to foot of head = 1.78459 foot of head
50 millimeter mercury to foot of head = 2.23074 foot of head
100 millimeter mercury to foot of head = 4.46148 foot of head
200 millimeter mercury to foot of head = 8.92295 foot of head
You can do the reverse unit conversion from foot of head to millimeter mercury, or enter any two units below:
millimeter mercury to kilopond/square centimeter
millimeter mercury to foot of water
millimeter mercury to centimeter mercury
millimeter mercury to nanobar
millimeter mercury to millimeter of water
millimeter mercury to femtobar
millimeter mercury to petapascal
millimeter mercury to yoctobar
millimeter mercury to barad
millimeter mercury to inch of air
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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