Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert pound-force per square inch (psi) to inch of water, conventional (inH₂O). 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 pound-force per square inch value to calculate inch 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 psi | Pa | 6894.76 |
| hectopascalfrom psi | hPa | 68.9476 |
| kilopascalfrom psi | kPa | 6.89476 |
| megapascalfrom psi | MPa | 0.00689476 |
| gigapascalfrom psi | GPa | 0.00000689476 |
| millibarfrom psi | mbar | 68.9476 |
| barfrom psi | bar | 0.0689476 |
| standard atmospherefrom psi | atm | 0.068046 |
| torrfrom psi | Torr | 51.7149 |
| millimetre of mercuryfrom psi | mmHg | 51.7149 |
| inch of mercury, conventionalfrom psi | inHg | 2.03602 |
| millimetre of water, conventionalfrom psi | mmH₂O | 703.07 |
| inch of water, conventionalfrom psi | inH₂O | 27.6799 |
| pound-force per square footfrom psi | psf | 144 |
| pound-force per square inchfrom psi | psi | 1 |
| kilopound-force per square inchfrom psi | ksi | 0.001 |
| kilogram-force per square centimetrefrom psi | kgf/cm² | 0.070307 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Pound-force Per Square Inch (psi) and inch of water, conventional (inH₂O) are units of pressure & stress. Use this page to convert in either direction.
| Pound-force Per Square Inch (psi) | Inch Of Water, Conventional (inH₂O) |
|---|---|
| 1 psi | 27.6799 inH₂O |
| 5 psi | 138.4 inH₂O |
| 10 psi | 276.799 inH₂O |
| 100 psi | 2767.99 inH₂O |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
inH₂O to psi (inch of water, conventional to pound-force per square inch)