Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
EVERYDAY · ENGINEERING · SCIENCE
Convert millimetre of water, conventional (mmH₂O) to gigapascal (GPa). Enter a value for an instant result, or use the examples and reverse conversion below.
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a millimetre of water, conventional value to calculate gigapascal with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| pascalfrom mmH₂O | Pa | 9.80665 |
| hectopascalfrom mmH₂O | hPa | 0.0980665 |
| kilopascalfrom mmH₂O | kPa | 0.00980665 |
| megapascalfrom mmH₂O | MPa | 0.00000980665 |
| gigapascalfrom mmH₂O | GPa | 0.00000000980665 |
| millibarfrom mmH₂O | mbar | 0.0980665 |
| barfrom mmH₂O | bar | 0.0000980665 |
| standard atmospherefrom mmH₂O | atm | 0.0000967841 |
| torrfrom mmH₂O | Torr | 0.0735559 |
| millimetre of mercuryfrom mmH₂O | mmHg | 0.0735559 |
| inch of mercury, conventionalfrom mmH₂O | inHg | 0.0028959 |
| millimetre of water, conventionalfrom mmH₂O | mmH₂O | 1 |
| inch of water, conventionalfrom mmH₂O | inH₂O | 0.0393701 |
| pound-force per square footfrom mmH₂O | psf | 0.204816 |
| pound-force per square inchfrom mmH₂O | psi | 0.00142233 |
| kilopound-force per square inchfrom mmH₂O | ksi | 0.00000142233 |
| kilogram-force per square centimetrefrom mmH₂O | kgf/cm² | 0.0001 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Millimetre Of Water, Conventional (mmH₂O) and gigapascal (GPa) are units of pressure & stress. Use this page to convert in either direction.
| Millimetre Of Water, Conventional (mmH₂O) | Gigapascal (GPa) |
|---|---|
| 1 mmH₂O | 0.00000000980665 GPa |
| 5 mmH₂O | 0.0000000490332 GPa |
| 10 mmH₂O | 0.0000000980665 GPa |
| 100 mmH₂O | 0.000000980665 GPa |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
GPa to mmH₂O (gigapascal to millimetre of water, conventional)