STRUCTURAL
Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
ResultmmH₂O → MPaConvert millimetre of water, conventional to megapascal
EVERYDAY · ENGINEERING · SCIENCE
Unit conversion. Made clear.
Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.
520units ready to convert
HOW IT IS CALCULATED
Convert through pascal
Enter a millimetre of water, conventional value to calculate megapascal with full internal precision before display rounding.
Display precisionAuto · 12 significant digits
Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| pascalfrom mmH₂O | Pa | Interactive |
| hectopascalfrom mmH₂O | hPa | Interactive |
| kilopascalfrom mmH₂O | kPa | Interactive |
| megapascalfrom mmH₂O | MPa | Interactive |
| gigapascalfrom mmH₂O | GPa | Interactive |
| millibarfrom mmH₂O | mbar | Interactive |
| barfrom mmH₂O | bar | Interactive |
| standard atmospherefrom mmH₂O | atm | Interactive |
| torrfrom mmH₂O | Torr | Interactive |
| millimetre of mercuryfrom mmH₂O | mmHg | Interactive |
| inch of mercury, conventionalfrom mmH₂O | inHg | Interactive |
| millimetre of water, conventionalfrom mmH₂O | mmH₂O | Interactive |
| inch of water, conventionalfrom mmH₂O | inH₂O | Interactive |
| pound-force per square footfrom mmH₂O | psf | Interactive |
| pound-force per square inchfrom mmH₂O | psi | Interactive |
| kilopound-force per square inchfrom mmH₂O | ksi | Interactive |
| kilogram-force per square centimetrefrom mmH₂O | kgf/cm² | Interactive |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.