# Convert Atmospheres to Millibars

Enter the pressure in atmospheres below to get the value converted to millibars.

**Results in Millibars:**

## How to Convert Atmospheres to Millibars

To convert an atmosphere measurement to a millibar measurement, multiply the pressure by the conversion ratio. One atmosphere is equal to 1,013.25 millibars, so use this simple formula to convert:

The pressure in millibars is equal to the atmospheres multiplied by 1,013.25.

**For example,**here's how to convert 5 atmospheres to millibars using the formula above.

Atmospheres and millibars are both units used to measure pressure. Keep reading to learn more about each unit of measure.

## 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.

## 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.

## Atmosphere Measurements and Equivalent Millibar Conversions

Atmospheres | Millibars |
---|---|

1 atm | 1,013 mbar |

2 atm | 2,027 mbar |

3 atm | 3,040 mbar |

4 atm | 4,053 mbar |

5 atm | 5,066 mbar |

6 atm | 6,080 mbar |

7 atm | 7,093 mbar |

8 atm | 8,106 mbar |

9 atm | 9,119 mbar |

10 atm | 10,133 mbar |

11 atm | 11,146 mbar |

12 atm | 12,159 mbar |

13 atm | 13,172 mbar |

14 atm | 14,186 mbar |

15 atm | 15,199 mbar |

16 atm | 16,212 mbar |

17 atm | 17,225 mbar |

18 atm | 18,239 mbar |

19 atm | 19,252 mbar |

20 atm | 20,265 mbar |

21 atm | 21,278 mbar |

22 atm | 22,292 mbar |

23 atm | 23,305 mbar |

24 atm | 24,318 mbar |

25 atm | 25,331 mbar |

26 atm | 26,345 mbar |

27 atm | 27,358 mbar |

28 atm | 28,371 mbar |

29 atm | 29,384 mbar |

30 atm | 30,398 mbar |

31 atm | 31,411 mbar |

32 atm | 32,424 mbar |

33 atm | 33,437 mbar |

34 atm | 34,451 mbar |

35 atm | 35,464 mbar |

36 atm | 36,477 mbar |

37 atm | 37,490 mbar |

38 atm | 38,504 mbar |

39 atm | 39,517 mbar |

40 atm | 40,530 mbar |

## More Atmosphere Pressure Conversions

- Convert to Pascals
- 1 atm is equal to 101,325 pascals
- Convert to Hectopascals
- 1 atm is equal to 1,013.25 hectopascals
- Convert to Bars
- 1 atm is equal to 1.01325 bars
- Convert to Kilograms Per Square Centimeter
- 1 atm is equal to 1.033227 kilograms per square centimeter
- Convert to Kilograms Per Square Meter
- 1 atm is equal to 10,332.3 kilograms per square meter
- Convert to Pounds Per Square Inch
- 1 atm is equal to 14.695964 pounds per square inch
- Convert to Pounds Per Square Foot
- 1 atm is equal to 2,116.22 pounds per square foot
- Convert to Torr
- 1 atm is equal to 760 torr