How many millimeter mercury in 1 inch wc? The answer is 1.8683201911017. We assume you are converting between millimeter mercury [0 °C] and inch of water column. You can view more details on each measurement unit: millimeter mercury or inch wc The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0075006157584566 millimeter mercury, or 0.0040146307866177 inch wc. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimeters mercury and inches water column. Type in your own numbers in the form to convert the units!
1 millimeter mercury to inch wc = 0.53524 inch wc
5 millimeter mercury to inch wc = 2.6762 inch wc
10 millimeter mercury to inch wc = 5.3524 inch wc
20 millimeter mercury to inch wc = 10.7048 inch wc
30 millimeter mercury to inch wc = 16.0572 inch wc
40 millimeter mercury to inch wc = 21.40961 inch wc
50 millimeter mercury to inch wc = 26.76201 inch wc
75 millimeter mercury to inch wc = 40.14301 inch wc
100 millimeter mercury to inch wc = 53.52402 inch wc
You can do the reverse unit conversion from inch wc 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.
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!