Millibars to Atmospheres

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Millibars mbar

Atmospheres atm

1 mbar = — atm

Quick reference

Millibars (mbar)	Atmospheres (atm)

Formula

Atmospheres = millibars × 0.00098692327

Multiply the millibars value by 0.0009869232667160128 to get atmospheres. To reverse — divide atmospheres by 0.0009869232667160128 to get millibars.

About this conversion

The millibar (mbar) equals one thousandth of a bar, widely used in meteorology and weather forecasting. Learn more →

The atmosphere (atm) is a reference pressure unit equal to the average atmospheric pressure at sea level: 101,325 pascals. Learn more →