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Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

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gigapascal
Symbol:  GPa 
Category:  Pressure 
SI Equivalent:  1×109 Pa
Dimension ML-1T-2 
System:  SI 
Convert     GPa  
80 GPa =
Energy density
  Symbol Unit Name
2.14714×106  Btu (IT)/ft3  British thermal unit (IT) per cubic foot 
3.44709×105  Btu (IT)/gal (UK)  British thermal unit (IT) per gallon (UK) 
2.8703×105  Btu (IT)/gal (US)  British thermal unit (IT) per gallon (US) 
8×1010  J/m3  joule per cubic meter 
8×107  kJ/m3  kilojoule per cubic meter 
1.00531×107  MGOe  megagauss-oersted (MGOe) 
Pressure
  Symbol Unit Name
8.15773×105  at  atmosphere (metric) 
7.89539×105  atm  atmosphere (standard) 
8×105  bar  bar 
8×1011  barad  barad 
8×1011    barye 
6.00049×107    centiHg (0°C) 
6.00049×107  cmHg (0 °C)  centimeter of mercury (0°C) 
8.15796×108  cmH2O  centimeter of water (4°C) 
8×1011  dyn/cm2  dyne per square centimeter 
2.6765×107  ft H2O  foot of water (4°C) 
8×108  hPa  hectopascal 
2.3624×107  inHg (0 °C)  inch of mercury (0°C) 
2.36884×107  inHg (15.56 °C)  inch of mercury (15.56°C) 
3.21485×108  inH2O (15.56 °C)  inch of water (15.56°C) 
3.21179×108  inH2O (4 °C)  inch of water (4°C) 
8.15773×105  kgf/cm2  kilogram force per square centimeter 
8.15773×107  kgf/dm2  kilogram force per square decimeter 
8.15773×109  kgf/m2  kilogram force per square meter 
8157.73  kgf/mm2  kilogram force per square millimeter 
8×107  kPa  kilopascal 
1.1603×104  kip/in2, ksi, KSI  kilopound force per square inch 
8×104  MPa  megapascal 
8.16572×106  mH2O, mCE (15.56 °C)  meter of water (15.56°C) 
8.15796×106  mH2O, mCE (4 °C)  meter of water (4°C) 
8×1011  µbar  microbar (barye, barrie) 
6.00049×1011  µHg (0 °C)  micron of mercury (millitorr) 
8×108  mbar  millibar 
6.00049×108  mmHg, torr, Torr (0 °C)  millimeter of mercury (0°C) 
8.16572×109  mmH2O, mmCE (15.56 °C)  millimeter of water (15.56°C) 
8.15796×109  mmH2O, mmCE (4 °C)  millimeter of water (4°C) 
6.00049×1011  mtorr  millitorr 
8×1010  N/m2  newton per square meter 
1.85648×108  ozf/in2, osi  ounce force (av.) per square inch 
8×1010  Pa, N/m2  pascal 
1.67083×109  lbf/ft2  pound force per square foot 
1.1603×107  psi, PSI, lbf/in2  pound force per square inch 
5.37575×1010  pdl/ft2  poundal per square foot 
3.73316×108  pdl/in2  poundal per square inch 
7.89539×105  atm  standard atmosphere 
7.45908×105  tonf/ft2 (UK)  ton force (long) per square foot 
5179.92  tonf/in2 (UK)  ton force (long) per square inch 
815.773  tonf/cm2 (metric)  ton force (metric) per square centimeter 
8.15773×106  tonf/m2 (metric)  ton force (metric) per square meter 
8.35417×105  tonf/ft2 (US)  ton force (short) per square foot 
5801.51  tonf/in2 (US)  ton force (short) per square inch 
6.00049×108  torr  torr 
Glossary
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.