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inch of water (15.56°C)
Symbol:  inH2O (15.56 °C) 
Category:  Pressure 
SI Equivalent:  248.845 Pa
Dimension ML-1T-2 
System:  UK, US 
Pressure unit defined by a column of water at 15.56°C with a height of 1 inch.
Convert     inH2O (15.56 °C)  
1 inH2O (15.56 °C) =
Energy density
  Symbol Unit Name
6.67881×10-3  Btu (IT)/ft3  British thermal unit (IT) per cubic foot 
1.07224×10-3  Btu (IT)/gal (UK)  British thermal unit (IT) per gallon (UK) 
8.92827×10-4  Btu (IT)/gal (US)  British thermal unit (IT) per gallon (US) 
248.845  J/m3  joule per cubic meter 
0.248845  kJ/m3  kilojoule per cubic meter 
3.12708×10-2  MGOe  megagauss-oersted (MGOe) 
  Symbol Unit Name
2.53752×10-3  at  atmosphere (metric) 
2.45591×10-3  atm  atmosphere (standard) 
2.48845×10-3  bar  bar 
2488.45  barad  barad 
2488.45    barye 
0.186649    centiHg (0°C) 
0.186649  cmHg (0 °C)  centimeter of mercury (0°C) 
2.53759  cmH2O  centimeter of water (4°C) 
2488.45  dyn/cm2  dyne per square centimeter 
8.32542×10-2  ft H2O  foot of water (4°C) 
2.48845×10-7  GPa  gigapascal 
2.48845  hPa  hectopascal 
7.34841×10-2  inHg (0 °C)  inch of mercury (0°C) 
7.36843×10-2  inHg (15.56 °C)  inch of mercury (15.56°C) 
0.99905  inH2O (4 °C)  inch of water (4°C) 
2.53752×10-3  kgf/cm2  kilogram force per square centimeter 
0.253752  kgf/dm2  kilogram force per square decimeter 
25.3752  kgf/m2  kilogram force per square meter 
2.53752×10-5  kgf/mm2  kilogram force per square millimeter 
0.248845  kPa  kilopascal 
3.6092×10-5  kip/in2, ksi, KSI  kilopound force per square inch 
2.48845×10-4  MPa  megapascal 
2.54×10-2  mH2O, mCE (15.56 °C)  meter of water (15.56°C) 
2.53759×10-2  mH2O, mCE (4 °C)  meter of water (4°C) 
2488.45  µbar  microbar (barye, barrie) 
1866.49  µHg (0 °C)  micron of mercury (millitorr) 
2.48845  mbar  millibar 
1.86649  mmHg, torr, Torr (0 °C)  millimeter of mercury (0°C) 
25.4  mmH2O, mmCE (15.56 °C)  millimeter of water (15.56°C) 
25.3759  mmH2O, mmCE (4 °C)  millimeter of water (4°C) 
1866.49  mtorr  millitorr 
248.845  N/m2  newton per square meter 
0.577471  ozf/in2, osi  ounce force (av.) per square inch 
248.845  Pa, N/m2  pascal 
5.19724  lbf/ft2  pound force per square foot 
3.6092×10-2  psi, PSI, lbf/in2  pound force per square inch 
167.216  pdl/ft2  poundal per square foot 
1.16122  pdl/in2  poundal per square inch 
2.45591×10-3  atm  standard atmosphere 
2.3202×10-3  tonf/ft2 (UK)  ton force (long) per square foot 
1.61125×10-5  tonf/in2 (UK)  ton force (long) per square inch 
2.53752×10-6  tonf/cm2 (metric)  ton force (metric) per square centimeter 
2.53752×10-2  tonf/m2 (metric)  ton force (metric) per square meter 
2.59862×10-3  tonf/ft2 (US)  ton force (short) per square foot 
1.8046×10-5  tonf/in2 (US)  ton force (short) per square inch 
1.86649  torr  torr