• Conversions of pressure or stress units

    Pressure conversion p = F / A = force divided by area
    The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m²).
    This program converts English and American measures to metric units
    pascal (Pa) 
     millibars (mbar) = hectopascals (hPa) 
     psi - pounds per square inch (lb/sq in) 
    bar (bar) 
    atmosphere (atm) 
    torr (torr) 
    Standard atmospheric pressure is 101,325 pascals = 1,013.25 hPa = 101.325 kPa
    Important to know: 1 Pa = 1 N/m294 dBSPL and 1 bar = 105 Pa
    1 kPa = 103 Pa = 1000 Pa = 1000 N/m2154 dBSPL
    Pressure = force / area       p = F / A
    Please enter two values, the third value will be calculated.
     Pressure p  Pa = N / m² Magisches Dreieck Ohm
    Force F  N
    Area A 
    Pressure units conversion chart
    Sorted from low to high
    Pressure or mechanical stress unit, p Symbol Definition Relation to SI unit pascal, Pa = N/m²
    pascal (metric SI unit) Pa ≡ N/m² = kg/(m·s²)
           
    barye (cgs unit) - ≡ 1 dyn/cm² = 0.1 Pa
    poundal per square foot pdl/sq ft ≡ 1 pdl / ft² ≈ 1.488 164 Pa
    millimetre of water (3.98 °C) mmH2O ≈ 999.972 kg/m³ × 1 mm × g = 9.806 38 Pa (= 0.999972 kgf/m²)
    pound per square foot psf ≡ 1 lbf / ft² ≈ 47.880 259 Pa
    centimetre of water (3.98 °C) cmH2O ≈ 999.972 kg/m³ × 1 cm × g = 98.0638 Pa
    torr torr ≡ 101 325 / 760 Pa ≈ 133.322 368 4 Pa
    millimetre of mercury mmHg ≡ 13595.1 kg/m³ × 1 mm × g ≈ 1 torr = 133.322 387 415 Pa
    inch of water (3.98 °C) inH2O ≈ 999.972 kg/m³ × 1 in × g = 249.082 Pa
    pièze (mts unit) pz ≡ 1000 kg / m·s² = 1 kPa
    centimetre of mercury cmHg ≡ 13 595.1 kg / m³ × 1 cm × g = 1.333 223 874 15 kPa
    foot of water (3.98 °C) ftH2O ≈ 999.972 kg / m³ × 1 ft × g = 2.988 98 kPa
    inch of mercury inHg ≡ 13 595.1 kg / m³ × 1 in × g = 3.386 388 640 341 kPa
    pound per square inch psi ≡ 1 lbf / 1 in² ≈ 6.894 757 kPa
    foot of mercury ftHg ≡ 13 595.1 kg/m³ × 1 ft × g = 40.636 663 684 091 9 kPa
    short ton per square foot - ≡ 1 sh tn × g / 1 ft² ≈ 95.760 518 kPa
    atmosphere (technical) atm ≡ 1 kgf / cm² = 98.0665 kPa
    bar bar - ≡105 Pa = 100 000 Pa
    atmosphere (standard) atm - ≡101 325 Pa
    kip per square inch ksi ≡ 1 kipf / in² ≈ 6.894757 MPa
    kilogram-force per square millimetre kgf/mm² ≡ 1 kgf / mm² = 9.806 65 MPa

    Unit Equivalent energy measures
    Pounds per square inch
    (psi, PSI, lb/in2, lb/sq in)
    Commonly used in the U.S., but not elsewhere. Normal atmospheric pressure is 14.7 psi, which means that a column of air one square inch in area rising from the Earth's surface up to space weighs 14.7 pounds.
    Atmosphere
    (atm)
    Normal atmospheric pressure is defined as 1 atmosphere. 1 atm = 14.6956 psi = 760 torr.
    Torr
    (torr)
    Based on the original Torricelli barometer design, one atmosphere of pressure will force the column of mercury (Hg) in a mercury barometer to a height of 760 millimeters. A pressure that causes the Hg column to rise 1 millimeter is called a torr (you may still see the term 1 mm Hg used; this has been replaced by the torr). 1 atm = 760 torr = 14.7 psi.
    Bar
    (bar)
    The bar is nearly identical to the atmosphere unit. One bar = 750.062 torr = 0.9869 atm = 100,000 Pa.
    Millibar
    (mb or mbar)
    There are 1,000 millibar in one bar. This unit is used by meteorologists who find it easier to refer to atmospheric pressures without using decimals. One millibar = 0.001 bar = 0.750 torr = 100 Pa.
    Pascal
    (Pa)
    1 pascal = a force of 1 Newton per square meter. 1 Newton is the force required to accelerate 1 kilogram one meter per second per second = 1 kg · m/s2; this is actually quite logical for physicists and engineers. 1 pascal = 10 dyne/cm 2 = 0.01 mbar. 1 atm = 101,325 Pascals = 760 mm Hg = 760 torr = 14.7 psi.
    Kilopascal
    (kPa)
    The prefix "kilo" means "1,000", so one kilopascal = 1,000 Pa. Therefore, 101.325 kPa = 1 atm = 760 torr and 100 kPa = 1 bar = 750 torr.
    Megapascal
    (MPa)
    The prefix "mega" means "1,000,000", so one megapascal = 1,000 kPa = 1,000,000 Pa. Such high pressures are rarely encounterd.
    Gigapascal
    (GPa)
    The prefix "giga" means "1,000,000,000", so one gigapascal = 1,000 MPa = 1,000,000 kPa = 1,000,000,000 Pa = 9,870 atm = 10,000 bar. Pressures of several gigapascals can convert graphite to diamond or make hydrogen a metallic conductor.
    Conversion chart
    Pressure, temperature and standard height (altitude or elevation)
    Values in "standard atmosphere"
      Elevation      Temperature        Air Pressure
            (feet)         (degrees °C)     (millibar = hPa)
    
          0               15.0             1013.25
       500             14.0              995
     1,000             13.0              977
     1,500             12.0              959
     2,000             11.0              942
     2,500             10.0              925
     3,000              9.1              908
     3,500              8.1              891
     4,000              7.1              875
     4,500              6.1              859
     5,000              5.1              843
     5,500              4.1              827
     6,000              3.1              812
     6,500              2.1              797
     7,000              1.1              782
     7,500              0.1              767
     8,000             -0.9              752
     8,500             -1.8              738
     9,000             -2.8              724
     9,500             -3.8              710
     10,000             -4.8              697 
     10,500             -5.8              683 
     11,000             -6.8              670 
     11,500             -7.8              657 
     12,000             -8.8              644 
     12,500             -9.8              632 
     13,000            -10.8              619 
     13,500            -11.8              607 
     14,000            -12.7              595 
     14,500            -13.7              583 
     15,000            -14.7              572 
     15,500            -15.7              560 
     16,000            -16.7              549 
     16,500            -17.7              538 
     17,000            -18.7              527 
     17,500            -19.7              516 
     18,000            -20.7              506 
     18,500            -21.7              495 
     19,000            -22.7              485 
     19,500            -23.6              475 
     20,000            -24.6              465 
     20,500            -25.6              456 
     21,000            -26.6              446 
    21,500            -27.6              437
    22,000            -28.6              428
    22,500            -29.6              419
    23,000            -30.6              410
    23,500            -31.6              401
    24,000            -32.6              392
    24,500            -33.6              384
    25,000            -34.5              376
    25,500            -35.5              368
    26,000            -36.5              360
    26,500            -37.5              352
    27,000            -38.5              344
    27,500            -39.5              336
    28,000            -40.5              329
    28,500            -41.5              322
    29,000            -42.5              315
    29,500            -43.5              307
    30,000            -44.5              301
    30,500            -45.4              294
    31,000            -46.4              287
    31,500            -47.4              281
    32,000            -48.4              274
    32,500            -49.4              268
    33,000            -50.4              262
    33,500            -51.4              256
    34,000            -52.4              250
    34,500            -53.4              244
    35,000            -54.4              238
    35,500            -55.4              232
    36,000            -56.3              225
    36,500            -57.3              219
    37,000            -58.3              213
    37,500            -59.3              207
    38,000            -60.3              200
    38,500            -61.3              194
    39,000            -62.3              188
    39,500            -63.3              182
    40,000            -64.3              176
    

    Air pressure depends on temperature and indirectly on altitude
    Pascal (Pa) is the metric SI unit of pressure and the standard pressure unit in the MKS metric system, equal to one newton
    per square meter or one "kilogram per meter per second per second." Sounds impressive, but in traditional English
    terms a pascal is only 0.000 145 pounds per square inch (0.020 885 lbf/ft2 or 0.007 50 mmHg). Thus pressure is more
    commonly measured in kilopascals (kPa), with 1 kPa = 0.145 lbf/in2. Air pressure is also measured in hectopascals (hPa),
    with 1 hPa = 1 millibar. The unit is named after Blaise Pascal (1623 - 1662), French philosopher and mathematician,
    who was the first person to use a barometer to measure differences in altitude.

    1 Pa = 1 N/m2
      10 µbar
      10 dynes/cm2

    1 µbar = 0.1 N/m2
      0.1 Pa
      1 dynes/cm2
     
    Not only take something from this website to enhance your knowledge.
    Please, also give some feedback to the author to improve the performance.
  • You might also like

    No comments:

    Post a Comment

    Good day precious one, We love you more than anything.

Powered by Blogger.