Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert megapascal (MPa) to millimetre of water, conventional (mmH₂O). 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 megapascal value to calculate millimetre of water, conventional 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 MPa | Pa | 1000000 |
| hectopascalfrom MPa | hPa | 10000 |
| kilopascalfrom MPa | kPa | 1000 |
| megapascalfrom MPa | MPa | 1 |
| gigapascalfrom MPa | GPa | 0.001 |
| millibarfrom MPa | mbar | 10000 |
| barfrom MPa | bar | 10 |
| standard atmospherefrom MPa | atm | 9.86923 |
| torrfrom MPa | Torr | 7500.62 |
| millimetre of mercuryfrom MPa | mmHg | 7500.62 |
| inch of mercury, conventionalfrom MPa | inHg | 295.3 |
| millimetre of water, conventionalfrom MPa | mmH₂O | 101972 |
| inch of water, conventionalfrom MPa | inH₂O | 4014.63 |
| pound-force per square footfrom MPa | psf | 20885.4 |
| pound-force per square inchfrom MPa | psi | 145.038 |
| kilopound-force per square inchfrom MPa | ksi | 0.145038 |
| kilogram-force per square centimetrefrom MPa | kgf/cm² | 10.1972 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Megapascal (MPa) and millimetre of water, conventional (mmH₂O) are units of pressure & stress. Use this page to convert in either direction.
| Megapascal (MPa) | Millimetre Of Water, Conventional (mmH₂O) |
|---|---|
| 1 MPa | 101972 mmH₂O |
| 5 MPa | 509858 mmH₂O |
| 10 MPa | 1019720 mmH₂O |
| 100 MPa | 10197200 mmH₂O |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
mmH₂O to MPa (millimetre of water, conventional to megapascal)