Millibar (mbar) to Pounds per square inch (psi) Conversion
Millibar
The millibar (mbar) is a unit of pressure equal to one thousandth of a bar (100 Pa). It is the standard unit for atmospheric pressure in meteorology: standard atmospheric pressure is 1,013.25 mbar, and weather maps plot isobars (lines of equal pressure) in millibars or hectopascals (1 hPa = 1 mbar). The eye of a powerful hurricane can have a central pressure below 900 mbar, while high-pressure systems typically exceed 1,020 mbar.
Pounds per square inch
Pounds per square inch (psi) is a unit of pressure defined as one pound-force per square inch (approximately 6,894.76 Pa). It is the standard for tyre pressure, hydraulic systems, and gas cylinders in the United States. Standard atmospheric pressure is approximately 14.696 psi. In engineering, gauge pressure (psig — relative to atmosphere) is distinguished from absolute pressure (psia — relative to a perfect vacuum), a distinction critical in thermodynamics and fluid system design.
| Millibar (mbar) | Pounds per square inch (psi) |
|---|---|
| 0.1 mbar | 0.0014503773773022 psi |
| 1 mbar | 0.014503773773022 psi |
| 2 mbar | 0.029007547546043 psi |
| 3 mbar | 0.043511321319065 psi |
| 5 mbar | 0.072518868865108 psi |
| 10 mbar | 0.14503773773022 psi |
| 20 mbar | 0.29007547546043 psi |
| 30 mbar | 0.43511321319065 psi |
| 50 mbar | 0.72518868865108 psi |
| 100 mbar | 1.4503773773022 psi |
| 1000 mbar | 14.503773773022 psi |