How to convert pascals to millimeters of mercury
To convert a measurement in pascals to millimeters of mercury, multiply the value by 0.007500615758. The conversion factor comes from the relationship between both units and the pascal.
For example, to convert 5 Pa to millimeters of mercury: 5 × 0.007500615758 = 0.037503078792 mmHg.
What is a pascal?
A pascal is the SI derived unit of pressure, equal to one newton of force per square meter (1 N/m²). Named after the French mathematician and physicist Blaise Pascal, the unit was adopted by the International System of Units in 1971. It is a small unit, so everyday pressures are usually expressed in kilopascals or bars.
Common uses of pascals include: Scientific and engineering stress calculations; Meteorological reporting (via hectopascals); Material strength and tensile testing; Fluid mechanics and aerodynamics.
What is a millimeter of mercury?
A millimeter of mercury (mmHg) is a unit of pressure equal to the pressure exerted by a one-millimeter-high column of mercury, about 133.32 pascals. Derived from early mercury barometers, the mmHg is nearly identical to the torr. It remains the standard unit for blood pressure and other physiological measurements in medicine worldwide.
Common uses of millimeters of mercury include: Blood pressure readings (systolic/diastolic); Intraocular and intracranial pressure; Barometric pressure in medicine; Vacuum and gas-pressure measurement.
Pascals to millimeters of mercury worked examples
Here are some common values converted:
1 Pa = 0.007500615758 mmHg 5 Pa = 0.037503078792 mmHg 10 Pa = 0.075006157585 mmHg 50 Pa = 0.375030787923 mmHg 100 Pa = 0.750061575846 mmHg
Frequently asked questions
How many millimeters of mercury are in one pascal?
One pascal (Pa) equals 0.007500615758 millimeters of mercury (mmHg). Multiply any value in pascals by 0.007500615758 to convert to millimeters of mercury.
How do I convert pascals to millimeters of mercury?
Multiply the value in pascals by 0.007500615758. For example, 5 Pa × 0.007500615758 = 0.037503078792 mmHg.
How do I convert millimeters of mercury to pascals?
Multiply the value in millimeters of mercury by 133.322387, or divide by 0.007500615758. Use the swap button on the converter above to reverse the direction.
Is the pascal to millimeter of mercury conversion exact?
These conversions use standard SI-derived definitions. 1 atm = 101,325 Pa and 1 psi = 6,894.757 Pa exactly by definition.
What is the formula for pascals to millimeters of mercury?
The formula is: mmHg = Pa × 0.007500615758. This comes from the definition of both units relative to the pascal.