Physical atmosphere (atm)
Atmospheric pressure is the pressure at any point in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point.
Metric
- Megapascal (MPa)0.1
- Bar1.01
- kgf/cm²1.03
- Kilopascal (kPa)101.32
- Hectopascal (hPa)1,013.25
- Millibar1,013.25
- kgf/m²10,332.27
- Pascal (Pa)101,325
Avoirdupois (U.S.)
Water
- Metre of water (mH2O)10.33
- Centimetre of water (cmH2O)1,033.26
- Foot of water (ftH20)33.9
- Inch of water (inH2O)406.79