Pressure & stress
Pressure, material stress and fluid head.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert hectopascal (hPa) to millimetre of mercury (mmHg). 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 hectopascal value to calculate millimetre of mercury 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 hPa | Pa | 100 |
| hectopascalfrom hPa | hPa | 1 |
| kilopascalfrom hPa | kPa | 0.1 |
| megapascalfrom hPa | MPa | 0.0001 |
| gigapascalfrom hPa | GPa | 0.0000001 |
| millibarfrom hPa | mbar | 1 |
| barfrom hPa | bar | 0.001 |
| standard atmospherefrom hPa | atm | 0.000986923 |
| torrfrom hPa | Torr | 0.750062 |
| millimetre of mercuryfrom hPa | mmHg | 0.750062 |
| inch of mercury, conventionalfrom hPa | inHg | 0.02953 |
| millimetre of water, conventionalfrom hPa | mmH₂O | 10.1972 |
| inch of water, conventionalfrom hPa | inH₂O | 0.401463 |
| pound-force per square footfrom hPa | psf | 2.08854 |
| pound-force per square inchfrom hPa | psi | 0.0145038 |
| kilopound-force per square inchfrom hPa | ksi | 0.0000145038 |
| kilogram-force per square centimetrefrom hPa | kgf/cm² | 0.00101972 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Hectopascal (hPa) and millimetre of mercury (mmHg) are units of pressure & stress. Use this page to convert in either direction.
| Hectopascal (hPa) | Millimetre Of Mercury (mmHg) |
|---|---|
| 1 hPa | 0.750062 mmHg |
| 5 hPa | 3.75031 mmHg |
| 10 hPa | 7.50062 mmHg |
| 100 hPa | 75.0062 mmHg |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
mmHg to hPa (millimetre of mercury to hectopascal)