Kilopascals to Millibars Converter

To convert a measurement in kilopascals to millibars, multiply the value by 10. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 kPa to millibars: 5 × 10 = 50 mbar.

A kilopascal equals 1,000 pascals and is the most common metric unit for everyday pressures such as tire inflation. The kilopascal became widespread as metric countries standardized on SI units, replacing older units like the kilogram-force per square centimeter in engineering and automotive specifications.

Common uses of kilopascals include: Tire pressure in metric countries; Blood pressure in some clinical contexts; HVAC and building pressure specifications; Compressed air and pneumatic systems.

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 kPa = 10 mbar 5 kPa = 50 mbar 10 kPa = 100 mbar 50 kPa = 500 mbar 100 kPa = 1,000 mbar