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Quantity Catalog - Pressure, Stress, Energy density, Spectral exposure (ln)
Home Refresh UoMs for Quantitites > Composite Quantity UoMs > Pressure, Stress, Energy density, Spectral exposure (ln)

Pressure is the force exerted on a surface per unit area. It is a measure of how much force is applied over a specific area, causing compression or expansion.

Common units of pressure include pascals (Pa), atmospheres (atm), and pounds per square inch (psi).

  • Pressure is crucial in engineering for designing structures to withstand external forces.
  • It is essential in weather forecasting to determine changes in atmospheric pressure.
  • Pressure plays a role in industries like manufacturing and transportation for maintaining safe operations.
  standard atmosphere  atm

1 atm = 101325.0 kg/m/s^2;

  atmtech  atmtech

1 atmtech = 98066.5 kg/m/s^2;

  bar  bar

1 bar = 100000.0 kg/m/s^2;

  cm water  cmh2o

1 cmH2O = 98.0665 kg/m/s^2;

  cm water at 4 degC  cmh2o4c

1 cmH2O4C = 98.0638 kg/m/s^2;

  cm mercury  cmhg

1 cmHg = 1333.224 kg/m/s^2;

  cm mercury at 0 degC  cmhg0c

1 cmHg0C = 1333.22 kg/m/s^2;

  feet water  fth2o

1 ftH2O = 2989.067 kg/m/s^2;

  feet water at 39 degF  fth2o39f

1 ftH2O39F = 2988.98 kg/m/s^2;

  feet mercury  fthg

1 ftHg = 40636.66 kg/m/s^2;

  hecto pascal  hpa

1 hPa = 100.0 kg/m/s^2;

  inch water  inh2o

1 inH2O = 249.0889 kg/m/s^2;

  inch water at 39 degF  inh2o39f

1 inH2O39F = 249.082 kg/m/s^2;

  inch water at 60 degF  inh2o60f

1 inH2O60F = 248.84 kg/m/s^2;

  inch mercury  inhg

1 inHg = 3386.389 kg/m/s^2;

  inch mercury at 32 degF  inhg32f

1 inHg32F = 3386.38 kg/m/s^2;

  inch mercury at 60 degF  inhg60f

1 inHg60F = 3376.85 kg/m/s^2;

  (pressure base)  kg/m/s^2

  kilo pascal  kpa

1 kPa = 1000.0 kg/m/s^2;

  kips per square inch  ksi

1 ksi = 6894757 kg/m/s^2;

  millibar  mbar

1 mbar = 100 kg/m/s^2;

  millimeter water  mmh2o

1 mmH2O = 9.80665 kg/m/s^2;

  mm of mercury  mmhg

1 mmHg = 133.32236842105263 kg/m/s^2;

  mega pascal  mpa

1 MPa = 1000000.0 kg/m/s^2;

  pascal  pa

1 Pa = 1.0 kg/m/s^2;

  poundf per square foot  psf

1 psf = 47.880258980347215 kg/m/s^2;

  poundf per square inch  psi

1 psi = 6894.75729317 kg/m/s^2;

  mm of mercury  torr

1 torr = 133.32236842105263 kg/m/s^2;

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