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How many millimeter mercury in 1 pound/square inch?
The answer is 51.714925105101.

We assume you are converting between and **pound/square inch**.

You can view more details on each measurement unit:

millimeter mercury or
pound/square inch

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.00014503773800722 pound/square inch.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between millimeters mercury and pounds/square inch.

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

1 millimeter mercury to pound/square inch = 0.01934 pound/square inch

10 millimeter mercury to pound/square inch = 0.19337 pound/square inch

20 millimeter mercury to pound/square inch = 0.38674 pound/square inch

30 millimeter mercury to pound/square inch = 0.5801 pound/square inch

40 millimeter mercury to pound/square inch = 0.77347 pound/square inch

50 millimeter mercury to pound/square inch = 0.96684 pound/square inch

100 millimeter mercury to pound/square inch = 1.93368 pound/square inch

200 millimeter mercury to pound/square inch = 3.86736 pound/square inch

You can do the reverse unit conversion from pound/square inch to millimeter mercury, or enter any two units below:

millimeter mercury to ton/square foot

millimeter mercury to millihg

millimeter mercury to kilopascal

millimeter mercury to micron mercury

millimeter mercury to decibar

millimeter mercury to kilopond/square meter

millimeter mercury to kip/square inch

millimeter mercury to pieze

millimeter mercury to newton/square millimeter

millimeter mercury to kilonewton/square meter

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.

The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.

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