## ››Convert to foot of head

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.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of millimeter mercury to foot of head

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

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You can do the reverse unit conversion from foot of head to millimeter mercury, or enter any two units below:

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## ››Definition: Millimeter mercury

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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