# Pounds Per Square Inch to Millibars Conversion

Enter the pressure in pounds per square inch below to get the value converted to millibars.

**Results in Millibars:**

## How to Convert Pounds Per Square Inch to Millibars

To convert a pound per square inch measurement to a millibar measurement, multiply the pressure by the conversion ratio. One pound per square inch is equal to 68.9475 millibars, so use this simple formula to convert:

The pressure in millibars is equal to the pounds per square inch multiplied by 68.9475.

**For example,**here's how to convert 5 pounds per square inch to millibars using the formula above.

Pounds per square inch and millibars are both units used to measure pressure. Keep reading to learn more about each unit of measure.

## Pounds Per Square Inch

One pound per square inch is the pressure of equal to one pound-force per square inch.

The pound per square inch is a US customary and imperial unit of pressure. A pound per square inch is sometimes also referred to as a pound-force per square inch. Pounds per square inch can be abbreviated as *psi*, for example 1 pound per square inch can be written as 1 psi.

PSI can be expressed using the formula:

1 psi = 1 lbfin^{2}

Pressure in pounds per square inch are equal to the pound-force divided by the area in square inches.

## Millibars

One millibar is equal to one-thousandth of a bar, which is defined as the pressure of one newton per square meter. One millibar is also equal to one hectopascal.

The millibar is a non-SI metric unit for pressure. In the metric system, "milli" is the prefix for 10^{-3}. Millibars can be abbreviated as *mbar*, for example 1 millibar can be written as 1 mbar.

## Pound Per Square Inch to Millibar Conversion Table

Pounds Per Square Inch | Millibars |
---|---|

1 psi | 68.95 mbar |

2 psi | 137.9 mbar |

3 psi | 206.84 mbar |

4 psi | 275.79 mbar |

5 psi | 344.74 mbar |

6 psi | 413.69 mbar |

7 psi | 482.63 mbar |

8 psi | 551.58 mbar |

9 psi | 620.53 mbar |

10 psi | 689.48 mbar |

11 psi | 758.42 mbar |

12 psi | 827.37 mbar |

13 psi | 896.32 mbar |

14 psi | 965.27 mbar |

15 psi | 1,034 mbar |

16 psi | 1,103 mbar |

17 psi | 1,172 mbar |

18 psi | 1,241 mbar |

19 psi | 1,310 mbar |

20 psi | 1,379 mbar |

21 psi | 1,448 mbar |

22 psi | 1,517 mbar |

23 psi | 1,586 mbar |

24 psi | 1,655 mbar |

25 psi | 1,724 mbar |

26 psi | 1,793 mbar |

27 psi | 1,862 mbar |

28 psi | 1,931 mbar |

29 psi | 1,999 mbar |

30 psi | 2,068 mbar |

31 psi | 2,137 mbar |

32 psi | 2,206 mbar |

33 psi | 2,275 mbar |

34 psi | 2,344 mbar |

35 psi | 2,413 mbar |

36 psi | 2,482 mbar |

37 psi | 2,551 mbar |

38 psi | 2,620 mbar |

39 psi | 2,689 mbar |

40 psi | 2,758 mbar |