# Pounds Per Square Inch to Atmospheres Conversion

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

**Results in Atmospheres:**

## How to Convert Pounds Per Square Inch to Atmospheres

To convert a pound per square inch measurement to an atmosphere measurement, multiply the pressure by the conversion ratio.

Since one pound per square inch is equal to 0.068046 atmospheres, you can use this simple formula to convert:

The pressure in atmospheres is equal to the pounds per square inch multiplied by 0.068046.

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

Pounds per square inch and atmospheres 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.

## Atmospheres

The atmosphere is a reference measure of pressure equal to 101,325 pascals or 1,013,250 dynes. The atmosphere was originally defined as the pressure of 760 millimeters of mercury at standard gravity at 0 °C, but was later redefined in 1954 to be equal to 1,013,250 dynes.

Atmospheres can be abbreviated as *atm*; for example, 1 atmosphere can be written as 1 atm.

## Pound Per Square Inch to Atmosphere Conversion Table

Pounds Per Square Inch | Atmospheres |
---|---|

1 psi | 0.068046 atm |

2 psi | 0.136092 atm |

3 psi | 0.204138 atm |

4 psi | 0.272184 atm |

5 psi | 0.340229 atm |

6 psi | 0.408275 atm |

7 psi | 0.476321 atm |

8 psi | 0.544367 atm |

9 psi | 0.612413 atm |

10 psi | 0.680459 atm |

11 psi | 0.748505 atm |

12 psi | 0.816551 atm |

13 psi | 0.884597 atm |

14 psi | 0.952642 atm |

15 psi | 1.0207 atm |

16 psi | 1.0887 atm |

17 psi | 1.1568 atm |

18 psi | 1.2248 atm |

19 psi | 1.2929 atm |

20 psi | 1.3609 atm |

21 psi | 1.429 atm |

22 psi | 1.497 atm |

23 psi | 1.5651 atm |

24 psi | 1.6331 atm |

25 psi | 1.7011 atm |

26 psi | 1.7692 atm |

27 psi | 1.8372 atm |

28 psi | 1.9053 atm |

29 psi | 1.9733 atm |

30 psi | 2.0414 atm |

31 psi | 2.1094 atm |

32 psi | 2.1775 atm |

33 psi | 2.2455 atm |

34 psi | 2.3136 atm |

35 psi | 2.3816 atm |

36 psi | 2.4497 atm |

37 psi | 2.5177 atm |

38 psi | 2.5857 atm |

39 psi | 2.6538 atm |

40 psi | 2.7218 atm |