| All the unit conversions |
| Type | System | Unit | Conversion factor |
| Pressure (compound parts) | CGS | Barye (Ba) | 0.1 |
| Imperial | PoundforcePerSquareFoot (psf) | 47.880258980335842616129676704 |
| | PoundforcePerSquareInch (psi) | 6894.7572931683613367226734453 |
| None | Atmosphere (atm) | 101325 |
| | Bar (bar) | 100000 |
| | InchOfMercury32F (inHg32) | 3386.38 |
| | InchOfMercury60F (inHg60) | 3376.85 |
| | KipPerSquareInch (ksi) | 6894757.2931683613367226734453 |
| | MillimetreOfMercury (mmHg) | 133.322387415 |
| | TechnicalAtmosphere (at) | 98066.5 |
| | Torr (Torr) | 133.32236842105263157894736842 |
| SI | Pascal (Pa) | 1 |