STRUCTURAL
Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result2.49089 hPa1 inH₂O = 2.49089 hPa
EVERYDAY · ENGINEERING · SCIENCE
inH₂O to hPa Converter
Convert inch of water, conventional (inH₂O) to hectopascal (hPa). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through pascal
Enter a inch of water, conventional value to calculate hectopascal with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| pascalfrom inH₂O | Pa | 249.089 |
| hectopascalfrom inH₂O | hPa | 2.49089 |
| kilopascalfrom inH₂O | kPa | 0.249089 |
| megapascalfrom inH₂O | MPa | 0.000249089 |
| gigapascalfrom inH₂O | GPa | 0.000000249089 |
| millibarfrom inH₂O | mbar | 2.49089 |
| barfrom inH₂O | bar | 0.00249089 |
| standard atmospherefrom inH₂O | atm | 0.00245832 |
| torrfrom inH₂O | Torr | 1.86832 |
| millimetre of mercuryfrom inH₂O | mmHg | 1.86832 |
| inch of mercury, conventionalfrom inH₂O | inHg | 0.0735559 |
| millimetre of water, conventionalfrom inH₂O | mmH₂O | 25.4 |
| inch of water, conventionalfrom inH₂O | inH₂O | 1 |
| pound-force per square footfrom inH₂O | psf | 5.20233 |
| pound-force per square inchfrom inH₂O | psi | 0.0361273 |
| kilopound-force per square inchfrom inH₂O | ksi | 0.0000361273 |
| kilogram-force per square centimetrefrom inH₂O | kgf/cm² | 0.00254 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
inH₂O to hPa Conversion Reference
Inch Of Water, Conventional (inH₂O) and hectopascal (hPa) are units of pressure & stress. Use this page to convert in either direction.
Conversion Examples
| Inch Of Water, Conventional (inH₂O) | Hectopascal (hPa) |
|---|---|
| 1 inH₂O | 2.49089 hPa |
| 5 inH₂O | 12.4544 hPa |
| 10 inH₂O | 24.9089 hPa |
| 100 inH₂O | 249.089 hPa |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
hPa to inH₂O (hectopascal to inch of water, conventional)
Related Pressure & stress Conversions
inH₂O to Pa (inch of water, conventional to pascal)inH₂O to kPa (inch of water, conventional to kilopascal)inH₂O to MPa (inch of water, conventional to megapascal)inH₂O to GPa (inch of water, conventional to gigapascal)inH₂O to mbar (inch of water, conventional to millibar)inH₂O to bar (inch of water, conventional to bar)inH₂O to atm (inch of water, conventional to standard atmosphere)inH₂O to Torr (inch of water, conventional to torr)inH₂O to mmHg (inch of water, conventional to millimetre of mercury)inH₂O to inHg (inch of water, conventional to inch of mercury, conventional)inH₂O to mmH₂O (inch of water, conventional to millimetre of water, conventional)inH₂O to psf (inch of water, conventional to pound-force per square foot)inH₂O to psi (inch of water, conventional to pound-force per square inch)inH₂O to ksi (inch of water, conventional to kilopound-force per square inch)inH₂O to kgf/cm² (inch of water, conventional to kilogram-force per square centimetre)