| Did you mean to convert | millimeter mercury | to | pound/square inch pound/square inch [gauge] pound/square inch [absolute] |
How many millimeter mercury in 1 lb/sq.in? The answer is 51.714925105101. We assume you are converting between millimeter mercury [0 °C] and pound/square inch [gauge]. You can view more details on each measurement unit: millimeter mercury or lb/sq.in The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.00014503773800722 lb/sq.in. 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 lb/sq.in = 0.01934 lb/sq.in
10 millimeter mercury to lb/sq.in = 0.19337 lb/sq.in
20 millimeter mercury to lb/sq.in = 0.38674 lb/sq.in
30 millimeter mercury to lb/sq.in = 0.5801 lb/sq.in
40 millimeter mercury to lb/sq.in = 0.77347 lb/sq.in
50 millimeter mercury to lb/sq.in = 0.96684 lb/sq.in
100 millimeter mercury to lb/sq.in = 1.93368 lb/sq.in
200 millimeter mercury to lb/sq.in = 3.86736 lb/sq.in
You can do the reverse unit conversion from lb/sq.in to millimeter mercury, 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.
Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!