Millibars to Psi Converter
How to convert millibars to psi
psi = millibars ÷ 68.9475729
To convert millibars to psi, divide the number of millibars by 68.9475729.
1 mbar = 0.0145037738 psi
Examples
- Standard sea-level atmospheric pressure: 1,013.25 mbar ÷ 68.9475729 = 14.6959488 psi
- 1,000 mbar ÷ 68.9475729 = 14.5037738 psi
Good to know
Psi means pounds-force per square inch (lbf/in²). Gauge readings (psig) are measured relative to atmospheric pressure, absolute readings (psia) relative to a vacuum; the conversion factor is the same for both.
Millibars to psi conversion table
| Millibars (mbar) | Psi |
|---|---|
| 1 mbar | 0.0145037738 psi |
| 10 mbar | 0.145037738 psi |
| 100 mbar | 1.45037738 psi |
| 500 mbar | 7.25188689 psi |
| 900 mbar | 13.0533964 psi |
| 950 mbar | 13.7785851 psi |
| 980 mbar | 14.2136983 psi |
| 1,000 mbar | 14.5037738 psi |
| 1,013.25 mbar | 14.6959488 psi |
| 1,020 mbar | 14.7938492 psi |
| 1,030 mbar | 14.938887 psi |
| 1,050 mbar | 15.2289625 psi |
| 1,100 mbar | 15.9541512 psi |
| 2,000 mbar | 29.0075475 psi |
Unit definitions
- Millibar (mbar)
- A millibar is one thousandth of a bar, exactly 100 pascals, and is identical to the hectopascal. It is used in meteorology for atmospheric pressure.
- Psi
- Psi is one pound-force per square inch, about 6894.757 pascals. It is the everyday pressure unit in the United States, used for tires, compressors and plumbing.