|
Home
Pressure Unit Conversion and Converter
Convert pressure units with the pressure unit converting tool, look up a conversion from the tables, identify a pressure unit and its family association with other pressure units or find the relevant pressure conversion factor in Pascals.
Pressure Converter
Please note that the above pressure unit converter limits input to 10 digits and uses conversion factors limited to 10 significant figures.
Pressure Conversion Tables
Choose a look up table for converting a particular pressure unit or for a specific pressure conversion application.
Pressure Unit
bar to psi, inHg, mH2O and ftH2O
psi to mbar, hPa, Bar, inHg, mH2O, inH2O and ftH2O
mH2O to ftH2O, bar, psi and inHg
inH2O to mmH2O, mbar, psi and mmHg
Application Specific
Tyre pressure for cars, trucks, cycles, motorbikes or aircraft
Barometric mbar (hPa) to psi, inhg, mmHg and Torr
Altitude in feet or meters to pressure
Pressure Unit Conversion Factors
The following list shows each pressure unit and its equivalent value converted into Pascals (Pa) which is the SI unit of measure for pressure:
bar | Bar converts to 100,000 Pascals |
psi, pfsi, lb/in² or lbf/in² | Pounds per Square Inch or Pounds Force per Square Inch converts to 6,894.76 Pascals |
mbar, mb or mbr | Millibar converts to 100 Pascals |
N/m² | Newton per Square Metre converts to 1 Pascal |
Pa | Pascal converts to 1 Pascal (SI unit for pressure) |
hPa | Hectopascal converts to 100 Pascals |
kPa | Kilopascal converts to 1,000 Pascals |
MPa | Megapascal converts to 1,000,000 Pascals |
kg/cm² or kgf/cm² | Kilogram per Square Centimeter or Kilogram Force per Square Centimetre converts to 98,066.5 Pascals |
Torr | Torr converts to 133.322 Pascals |
mTorr | Millitorr converts to 0.133322 Pascals |
atm | Standard Atmosphere converts to 101,325 Pascals |
at | Technical Atmosphere converts to 98,066.5 Pascals |
dyn/cm², dyne/cm² dynes/cm² or d/cm² | Dyne per Square Centimeter converts to 0.1 Pascals |
oz/in² or ozf/in² | Ounce per Square Inch or Ounce Force per Square Inch converts to 430.922 Pascals |
tsi or tfsi (uk, long) | Tons per Square Inch or Tons Force per Square Inch (uk, long) converts to 15,444,300 Pascals |
tsi or tfsi (usa, short) | Tons per Square Inch or Tons Force per Square Inch (usa, short) converts to 13,789,500 Pascals |
tsf or tfsf (usa, short) | Tons per Square Foot or Tons Force per Square Foot (usa, short) converts to 95,760.5 Pascals |
psf or pfsf | Pounds per Square Foot or Pounds Force per Square Foot converts to 47.8803 Pascals |
g/cm² or gf/cm² | Gram Force per Square Centimetre or Gram per Square Centimeter converts to 98.0665 Pascals |
Manometric Pressure Unit Conversion Factors
The following units are known as manometric pressure units and are derived from the pressure exerted by a column of liquid under the acceleration of earth's gravity.
Since the pressure of the fluid column can vary with changes in liquid density and local gravity it is important to quantify these factors when using these units and these are highlighted at the bottom of this manometric units section.
The use of manometric units is discouraged by national standard organisations because they do not precisely represent the true pressure and there are various conventions used for the temperature and density of the liquid which can lead to confusion.
The above manometric pressure units assume the following in their derivation and although they are not physical constants they have been accepted as popular conventions and are used universally:
Standard acceleration due to gravity of 9.80665m/s^2
Density of pure water at 4 deg C is 1000 kg/m^3
Density of mercury at 0 deg C is 13,595.08 kg/m^3
Please note that the above pressure units converter produces results rounded to 3 decimal places or less and the pressure conversion factors are rounded to 6 significant figures, therefore they should not be treated as exact conversions unless otherwise stated.
Pressure Units Grouped by Relationship
Many units have a similar application or derivation, the use of each varies depending on country, industry and pressure value
Pressure units derived from 'Pascal' the SI unit for pressure
Pa, hPa, kPa, MPa, N/m²
bar, mbar, mb, mbr
dyn/cm², dyne/cm², dynes/cm², d/cm²
Force related pressure units
kg/cm², kgf/cm², at, g/cm², gf/cm²
psi, pfsi, lb/in², lbf/in², oz/in², ozf/in²
tsi (uk, long), tfsi (uk, long), tsi (usa, short), tfsi (usa, short), tsf (usa, short), tfsf (usa, short), psf, pfsf
Water related pressure units
mm-H2O 4 deg C, cm-H2O 4 deg C, mH2O 4 deg C
mm-WG 4 deg C, cm-WG 4 deg C, mWG 4 deg C
mm-WC 4 deg C, cm-WC 4 deg C, mWC 4 deg C
in-H2O 4 deg C, ft-H2O 4 deg C
in-WG 4 deg C, ft-WG 4 deg C
in-WC 4 deg C, ft-WC 4 deg C
Mercury related pressure units
mm-Hg 0 deg C, cm-Hg 0 deg C,
in-Hg 0 deg C
microns Hg 0 deg C, micron Hg 0 deg C
Pressure units derived from 1 standard atmosphere (1 atm = 101325 Pascals)
atm, Torr, mTorr
Home
Request Info | Ask a Question
|
Site Last Updated: 03/09/10
Reference
Glossary - Find explanations for terminology used in specifying and using pressure instruments
Pressure Conversion - Look up conversion factors or select a conversion table for a particular pressure unit
Pressure Measuring Guide - Collection of guidance notes for sourcing, setting up and using pressure measurement equipment
News Articles - Archive of application notes, product releases and technical information
Specify
Pressure Sensor Specification - Select parameters with PSAT to generate a spec for your own use or to submit as an enquiry
Product Finder - Choose multiple product and application types to filter out a suitable product
Contact
|
