STRUCTURAL
Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result10.1972 mmH₂O1 hPa = 10.1972 mmH₂O
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hPa to mmH₂O Converter
Convert hectopascal (hPa) to millimetre of water, conventional (mmH₂O). 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 hectopascal value to calculate millimetre of water, conventional 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 hPa | Pa | 100 |
| hectopascalfrom hPa | hPa | 1 |
| kilopascalfrom hPa | kPa | 0.1 |
| megapascalfrom hPa | MPa | 0.0001 |
| gigapascalfrom hPa | GPa | 0.0000001 |
| millibarfrom hPa | mbar | 1 |
| barfrom hPa | bar | 0.001 |
| standard atmospherefrom hPa | atm | 0.000986923 |
| torrfrom hPa | Torr | 0.750062 |
| millimetre of mercuryfrom hPa | mmHg | 0.750062 |
| inch of mercury, conventionalfrom hPa | inHg | 0.02953 |
| millimetre of water, conventionalfrom hPa | mmH₂O | 10.1972 |
| inch of water, conventionalfrom hPa | inH₂O | 0.401463 |
| pound-force per square footfrom hPa | psf | 2.08854 |
| pound-force per square inchfrom hPa | psi | 0.0145038 |
| kilopound-force per square inchfrom hPa | ksi | 0.0000145038 |
| kilogram-force per square centimetrefrom hPa | kgf/cm² | 0.00101972 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
hPa to mmH₂O Conversion Reference
Hectopascal (hPa) and millimetre of water, conventional (mmH₂O) are units of pressure & stress. Use this page to convert in either direction.
Conversion Examples
| Hectopascal (hPa) | Millimetre Of Water, Conventional (mmH₂O) |
|---|---|
| 1 hPa | 10.1972 mmH₂O |
| 5 hPa | 50.9858 mmH₂O |
| 10 hPa | 101.972 mmH₂O |
| 100 hPa | 1019.72 mmH₂O |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
mmH₂O to hPa (millimetre of water, conventional to hectopascal)
Related Pressure & stress Conversions
hPa to Pa (hectopascal to pascal)hPa to kPa (hectopascal to kilopascal)hPa to MPa (hectopascal to megapascal)hPa to GPa (hectopascal to gigapascal)hPa to mbar (hectopascal to millibar)hPa to bar (hectopascal to bar)hPa to atm (hectopascal to standard atmosphere)hPa to Torr (hectopascal to torr)hPa to mmHg (hectopascal to millimetre of mercury)hPa to inHg (hectopascal to inch of mercury, conventional)hPa to inH₂O (hectopascal to inch of water, conventional)hPa to psf (hectopascal to pound-force per square foot)hPa to psi (hectopascal to pound-force per square inch)hPa to ksi (hectopascal to kilopound-force per square inch)hPa to kgf/cm² (hectopascal to kilogram-force per square centimetre)