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inch of water (4°C)
Symbol:  inH2O (4 °C) 
Category:  Pressure 
SI Equivalent:  249.082 Pa
Dimension ML-1T-2 
System:  UK, US 
 
Notes
Pressure unit defined by a column of water at 4°C with a height of 1 inch.
Convert     inH2O (4 °C)  
1 inH2O (4 °C) =
Energy density
  Symbol Unit Name
6.68516×10-3  Btu (IT)/ft3  British thermal unit (IT) per cubic foot 
1.07326×10-3  Btu (IT)/gal (UK)  British thermal unit (IT) per gallon (UK) 
8.93676×10-4  Btu (IT)/gal (US)  British thermal unit (IT) per gallon (US) 
249.082  J/m3  joule per cubic meter 
0.249082  kJ/m3  kilojoule per cubic meter 
3.13006×10-2  MGOe  megagauss-oersted (MGOe) 
Pressure
  Symbol Unit Name
2.53993×10-3  at  atmosphere (metric) 
2.45825×10-3  atm  atmosphere (standard) 
2.49082×10-3  bar  bar 
2490.82  barad  barad 
2490.82    barye 
0.186827    centiHg (0°C) 
0.186827  cmHg (0 °C)  centimeter of mercury (0°C) 
2.54  cmH2O  centimeter of water (4°C) 
2490.82  dyn/cm2  dyne per square centimeter 
8.33333×10-2  ft H2O  foot of water (4°C) 
2.49082×10-7  GPa  gigapascal 
2.49082  hPa  hectopascal 
7.3554×10-2  inHg (0 °C)  inch of mercury (0°C) 
7.37544×10-2  inHg (15.56 °C)  inch of mercury (15.56°C) 
1.00095  inH2O (15.56 °C)  inch of water (15.56°C) 
2.53993×10-3  kgf/cm2  kilogram force per square centimeter 
0.253993  kgf/dm2  kilogram force per square decimeter 
25.3993  kgf/m2  kilogram force per square meter 
2.53993×10-5  kgf/mm2  kilogram force per square millimeter 
0.249082  kPa  kilopascal 
3.61263×10-5  kip/in2, ksi, KSI  kilopound force per square inch 
2.49082×10-4  MPa  megapascal 
2.54242×10-2  mH2O, mCE (15.56 °C)  meter of water (15.56°C) 
2.54×10-2  mH2O, mCE (4 °C)  meter of water (4°C) 
2490.82  µbar  microbar (barye, barrie) 
1868.27  µHg (0 °C)  micron of mercury (millitorr) 
2.49082  mbar  millibar 
1.86827  mmHg, torr, Torr (0 °C)  millimeter of mercury (0°C) 
25.4242  mmH2O, mmCE (15.56 °C)  millimeter of water (15.56°C) 
25.4  mmH2O, mmCE (4 °C)  millimeter of water (4°C) 
1868.27  mtorr  millitorr 
249.082  N/m2  newton per square meter 
0.57802  ozf/in2, osi  ounce force (av.) per square inch 
249.082  Pa, N/m2  pascal 
5.20218  lbf/ft2  pound force per square foot 
3.61263×10-2  psi, PSI, lbf/in2  pound force per square inch 
167.375  pdl/ft2  poundal per square foot 
1.16233  pdl/in2  poundal per square inch 
2.45825×10-3  atm  standard atmosphere 
2.3224×10-3  tonf/ft2 (UK)  ton force (long) per square foot 
1.61278×10-5  tonf/in2 (UK)  ton force (long) per square inch 
2.53993×10-6  tonf/cm2 (metric)  ton force (metric) per square centimeter 
2.53993×10-2  tonf/m2 (metric)  ton force (metric) per square meter 
2.60109×10-3  tonf/ft2 (US)  ton force (short) per square foot 
1.80631×10-5  tonf/in2 (US)  ton force (short) per square inch 
1.86827  torr  torr 
Glossary
Negotiate Your Salary

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Metal 3D Printing Design Guide

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

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

STEM Career Outlook

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