For 150 millimeters-of-mercury, the best unit to convert to is 150 millimeters-of-mercury. Or, multiply by 100000/6894.757 = 14.503774. Best conversion unit for 150 millimeters-of-mercury The best conversion unit defined in our website is to convert a number as the unit that is the lowest without going lower than 1. Or, you can find the single factor you need by dividing the A factor by the B factor.įor example, to convert from bar to pounds per square inch you would multiply by 100000 then divide by 6894.757. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into Pascals then divide by the factor for B to convert out of Pascals.
To convert from Pa into units in the left columnĭivide by the value in the right column or, multiply by the reciprocal, 1/x.ĥ00000 Pa / 100000 = 5 bar Multiply by the conversion value in the right column in the table below.ĥ bar * 100000 = 500000 Pa To simply convert from any unit into pascals, for example, from 5 bar, just Where S is our starting value, C is our conversion factor, and
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How to Convert Units of PressureĬonversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem: Some are obvious, such as pounds per square inch, but even the SI standard Pascal is actually an expression of one Newton per square meter. Since pressure is derived from force and area, many units for pressure directly relate force to area. Where P is equal to pressure, F is the normal force and A is area. Although not an SI unit, the millimetre of mercury is still routinely used in medicine, meteorology, aviation, and many other scientific fields. More pages related to measurement unit technical terms.Pressure is a scalar quality reflecting how force acts on a surface. A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, and currently defined as exactly 133.322 387 415 pascals. Given that the air pressure inside an automobile tire is 34.0 psi, express the pressure in each of the following units: (a) atm (b) cm Hg (c) torr (d) kPa.
The standard atmosphere value has many uses in atmospheric calculations and one example of this is the FAA procedures for setting aircraft altimeters at altitudes of 18,000 feet and above to ensure all aircraft are using the same pressure reference when measuring the height above sea level. Since 1 atm and 760 mm Hg are exact values, the answers have been rounded to three significant digits, which is consistent with the given value, 27.5 in. Note: Kilopascal is a metric unit of pressure. How many millimeters of mercury in 34 kilopascals: If p kPa 34 then p mmHg 7.50061683 × 34 255.02097222 mmHg.
How many millimeters of mercury in a kilopascal: If p kPa 1 then p mmHg 7.50061683 × 1 7.50061683 mmHg. So 1.01325 bar is not a real average as such, but used more as a sensible value that has been chosen as the representative average pressure for the Earth’s atmosphere at sea level. How to convert kilopascals to millimeters of mercury kPa to mmHg. Since the actual pressure at sea level varies in an unpredictable way due to constant changes in weather conditions, an overall true average is not practical to determine or use universally because it would need to be constantly iterated to keep up with climatic variations. The internationally accepted ‘standard’ value at sea level is 1.01325 bar. What is the average pressure on Earth at sea level in bar pressure? 1 atm to mmHgġ atmosphere (atm) = 760.000 mmHg ( millimetres of Mercury) Average atmospheric pressure at sea level The standard constant value used for atmospheric pressure at sea level is 1 atm (standard atmosphere) which equals 101325 pascals in SI units, and is equivalent to 29.9213 inches of mercury. What does one atmospheric pressure equal in inches of mercury?
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