# mbar - Millibar Pressure Unit

Millibar is a metric unit of pressure mainly used in European countries and is derived directly from the Bar pressure unit which equals 1,000 mbar. In SI units 1 mbar equals 100 Pascals.

The Millibar is most commonly used to measure barometric pressure for meteorological purposes and low range gas pressures due to its very small value.

In recent years the mb pressure unit has been replaced by the hPa (Hectopascal) which is exactly the same value. However the millibar has been used by many people for many years so it will be a long time before its use is completely phased out if at all.

There are three common abbreviated forms used to identify Millibar pressure unit which are mb, mbar and mbr.

You can convert a milli-bar reading into a different pressure unit by multiplying it by one of the conversion factors in the table below.

Alternatively you can use our pressure converter to calculate the answer instead.

mbar Pressure Conversion Factors

 0.001 bar 0.0145038 psi 1 mbar 100 N/m² 100 Pa 1 hPa 0.1 kPa 0.0001 MPa 0.00101972 kg/cm² 10.1972 mmH2O 4°C (39.2°F) 1.01972 cmH2O 4°C (39.2°F) 0.0101972 mH2O 4°C (39.2°F) 0.401463 inH2O 4°C (39.2°F) 0.0334553 ftH2O 4°C (39.2°F) 0.750062 mmHg 0°C (32°F) 0.0750062 cmHg 0°C (32°F) 0.02953 inHg 0°C (32°F) 0.750062 Torr 750.062 mTorr 0.000986923 atm 0.00101972 at 1000 dyn/cm² 0.23206 oz/in² 750.062 µHg 0°C (32°F) 6.4749e-06 tsi (uk, long) 7.25189e-06 tsi (usa, short) 0.00104427 tsf (usa, short) 2.08854 psf 1.01972 g/cm²

Please note that the conversion factors above are accurate to 6 significant figures.

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