Millibars to Torr Converter

To convert a measurement in millibars to torr, multiply the value by 0.750061682704. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 mbar to torr: 5 × 0.750061682704 = 3.750308 Torr.

A millibar equals one thousandth of a bar, or 100 pascals, and is equivalent to the hectopascal used in modern meteorology. The millibar dominated weather reporting for much of the 20th century. It is numerically identical to the hectopascal (hPa) that officially replaced it, so 1013 mbar and 1013 hPa describe the same sea-level pressure.

Common uses of millibars include: Atmospheric pressure in weather forecasts; Barometer and altimeter readings; Aviation weather reporting; Storm and hurricane intensity tracking.

A torr is a unit of pressure defined as 1/760 of a standard atmosphere, approximately equal to one millimeter of mercury (about 133.32 pascals). Named after Evangelista Torricelli, inventor of the barometer, the torr is used mainly in vacuum technology and laboratory work where low pressures are measured against a mercury column.

Common uses of torr include: Vacuum system measurements; Laboratory and analytical instruments; Semiconductor process chambers; Physiology and respiratory gas pressures.

Here are some common values converted:

1 mbar = 0.750061682704 Torr 5 mbar = 3.750308 Torr 10 mbar = 7.500617 Torr 50 mbar = 37.503084 Torr 100 mbar = 75.006168 Torr