STRUCTURAL
Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.00131579 atm1 mmHg = 0.00131579 atm
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mmHg to atm Converter
Convert millimetre of mercury (mmHg) to standard atmosphere (atm). 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 millimetre of mercury value to calculate standard atmosphere 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 mmHg | Pa | 133.322 |
| hectopascalfrom mmHg | hPa | 1.33322 |
| kilopascalfrom mmHg | kPa | 0.133322 |
| megapascalfrom mmHg | MPa | 0.000133322 |
| gigapascalfrom mmHg | GPa | 0.000000133322 |
| millibarfrom mmHg | mbar | 1.33322 |
| barfrom mmHg | bar | 0.00133322 |
| standard atmospherefrom mmHg | atm | 0.00131579 |
| torrfrom mmHg | Torr | 1 |
| millimetre of mercuryfrom mmHg | mmHg | 1 |
| inch of mercury, conventionalfrom mmHg | inHg | 0.0393701 |
| millimetre of water, conventionalfrom mmHg | mmH₂O | 13.5951 |
| inch of water, conventionalfrom mmHg | inH₂O | 0.53524 |
| pound-force per square footfrom mmHg | psf | 2.7845 |
| pound-force per square inchfrom mmHg | psi | 0.0193368 |
| kilopound-force per square inchfrom mmHg | ksi | 0.0000193368 |
| kilogram-force per square centimetrefrom mmHg | kgf/cm² | 0.00135951 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
mmHg to atm Conversion Reference
Millimetre Of Mercury (mmHg) and standard atmosphere (atm) are units of pressure & stress. Use this page to convert in either direction.
Conversion Examples
| Millimetre Of Mercury (mmHg) | Standard Atmosphere (atm) |
|---|---|
| 1 mmHg | 0.00131579 atm |
| 5 mmHg | 0.00657895 atm |
| 10 mmHg | 0.0131579 atm |
| 100 mmHg | 0.131579 atm |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
atm to mmHg (standard atmosphere to millimetre of mercury)
Related Pressure & stress Conversions
mmHg to Pa (millimetre of mercury to pascal)mmHg to hPa (millimetre of mercury to hectopascal)mmHg to kPa (millimetre of mercury to kilopascal)mmHg to MPa (millimetre of mercury to megapascal)mmHg to GPa (millimetre of mercury to gigapascal)mmHg to mbar (millimetre of mercury to millibar)mmHg to bar (millimetre of mercury to bar)mmHg to Torr (millimetre of mercury to torr)mmHg to inHg (millimetre of mercury to inch of mercury, conventional)mmHg to mmH₂O (millimetre of mercury to millimetre of water, conventional)mmHg to inH₂O (millimetre of mercury to inch of water, conventional)mmHg to psf (millimetre of mercury to pound-force per square foot)mmHg to psi (millimetre of mercury to pound-force per square inch)mmHg to ksi (millimetre of mercury to kilopound-force per square inch)mmHg to kgf/cm² (millimetre of mercury to kilogram-force per square centimetre)