Pascals to Millibars Converter

To convert a measurement in pascals to millibars, multiply the value by 0.01. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 Pa to millibars: 5 × 0.01 = 0.05 mbar.

A pascal is the SI derived unit of pressure, equal to one newton of force per square meter (1 N/m²). Named after the French mathematician and physicist Blaise Pascal, the unit was adopted by the International System of Units in 1971. It is a small unit, so everyday pressures are usually expressed in kilopascals or bars.

Common uses of pascals include: Scientific and engineering stress calculations; Meteorological reporting (via hectopascals); Material strength and tensile testing; Fluid mechanics and aerodynamics.

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.

Here are some common values converted:

1 Pa = 0.01 mbar 5 Pa = 0.05 mbar 10 Pa = 0.1 mbar 50 Pa = 0.5 mbar 100 Pa = 1 mbar