mbar

What is a Millibar?

Pressure Unit

Definition

A millibar (mbar) is a unit of pressure equal to one-thousandth of a bar, or 100 pascals.

Popular Millibar Conversions

Most common conversions from Millibars

1 mbar = 100 Pa Millibar to Pascals 1 mbar = 0.1 kPa Millibar to Kilopascals 1 mbar = 0.0001 MPa Millibar to Megapascals 1 mbar = 0.001 bar Millibar to Bars 1 mbar = 0.014504 psi Millibar to PSI 1 mbar = 0.0009869233 atm Millibar to Atmospheres

History

The millibar was introduced in 1909 and became standard in meteorology. It has largely been replaced by the hectopascal (hPa), which is numerically equivalent.

Common Uses

  • Weather forecasting
  • Barometric pressure
  • Aviation altimetry
  • Meteorology

Fun Facts

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Standard atmospheric pressure is 1013.25 mbar

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Hurricane central pressures can drop below 900 mbar

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1 mbar equals 1 hectopascal

All Millibar Conversions

Millibars to Pascals mbar → Pa Millibars to Kilopascals mbar → kPa Millibars to Megapascals mbar → MPa Millibars to Bars mbar → bar Millibars to PSI mbar → psi Millibars to Atmospheres mbar → atm Millibars to Torr mbar → Torr Millibars to mmHg mbar → mmHg

Related Units

bar Bar Pa Pascal atm Atmosphere psi PSI