Convert millibars to atm

Millibars to standard atmospheres. Enter a value to convert, or use the millibars to atm chart further down the page.

1 mbar = 0.0009869232667 atm

1 millibar equals 0.0009869232667 standard atmospheres. Going the other way, 1 standard atmosphere = 1,013.25 millibars.

How to convert millibars to atm

To convert millibars to standard atmospheres, multiply the millibar value by 0.0009869232667. You can also divide by 1013.25 to get the same answer.

atm = mbar × 0.0009869232667

Convert 15 mbar to standard atmospheres:

15 mbar = 0.014803849 atm

Use this millibars to atm table for quick reference without typing anything.

A millibar is 100 pascals, identical to a hectopascal. It is the standard unit in weather reports.

The standard atmosphere is defined as exactly 101,325 pascals — the reference sea-level pressure.

How many atm are in a millibar?

1 millibars equals 0.0009869232667 atm. Going the other way, 1 atm is 1,013.25 millibars.

How do you convert millibars to atm?

To convert millibars to standard atmospheres, multiply the millibar value by 0.0009869232667. You can also divide by 1013.25 to get the same answer.

What is 10 millibars in atm?

10 millibars equals 0.009869232667 atm. The conversion chart on this page lists the other values people look up most often.