STRUCTURAL
Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result406.782 inH₂O1 atm = 406.782 inH₂O
EVERYDAY · ENGINEERING · SCIENCE
atm to inH₂O Converter
Convert standard atmosphere (atm) to inch of water, conventional (inH₂O). 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 standard atmosphere value to calculate inch 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 atm | Pa | 101325 |
| hectopascalfrom atm | hPa | 1013.25 |
| kilopascalfrom atm | kPa | 101.325 |
| megapascalfrom atm | MPa | 0.101325 |
| gigapascalfrom atm | GPa | 0.000101325 |
| millibarfrom atm | mbar | 1013.25 |
| barfrom atm | bar | 1.01325 |
| standard atmospherefrom atm | atm | 1 |
| torrfrom atm | Torr | 760 |
| millimetre of mercuryfrom atm | mmHg | 760 |
| inch of mercury, conventionalfrom atm | inHg | 29.9213 |
| millimetre of water, conventionalfrom atm | mmH₂O | 10332.3 |
| inch of water, conventionalfrom atm | inH₂O | 406.782 |
| pound-force per square footfrom atm | psf | 2116.22 |
| pound-force per square inchfrom atm | psi | 14.6959 |
| kilopound-force per square inchfrom atm | ksi | 0.0146959 |
| kilogram-force per square centimetrefrom atm | kgf/cm² | 1.03323 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
atm to inH₂O Conversion Reference
Standard Atmosphere (atm) and inch of water, conventional (inH₂O) are units of pressure & stress. Use this page to convert in either direction.
Conversion Examples
| Standard Atmosphere (atm) | Inch Of Water, Conventional (inH₂O) |
|---|---|
| 1 atm | 406.782 inH₂O |
| 5 atm | 2033.91 inH₂O |
| 10 atm | 4067.82 inH₂O |
| 100 atm | 40678.2 inH₂O |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
inH₂O to atm (inch of water, conventional to standard atmosphere)
Related Pressure & stress Conversions
atm to Pa (standard atmosphere to pascal)atm to hPa (standard atmosphere to hectopascal)atm to kPa (standard atmosphere to kilopascal)atm to MPa (standard atmosphere to megapascal)atm to GPa (standard atmosphere to gigapascal)atm to mbar (standard atmosphere to millibar)atm to bar (standard atmosphere to bar)atm to Torr (standard atmosphere to torr)atm to mmHg (standard atmosphere to millimetre of mercury)atm to inHg (standard atmosphere to inch of mercury, conventional)atm to mmH₂O (standard atmosphere to millimetre of water, conventional)atm to psf (standard atmosphere to pound-force per square foot)atm to psi (standard atmosphere to pound-force per square inch)atm to ksi (standard atmosphere to kilopound-force per square inch)atm to kgf/cm² (standard atmosphere to kilogram-force per square centimetre)