Millibar to Bar Converter

Convert pressure measurements from millibars (mbar) to bars (bar) with this easy-to-use calculator.

1 bar
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How to Convert Millibars to Bars

To convert millibars (mbar) to bars (bar), divide the pressure value by 1,000:

bars = millibars ÷ 1,000

Understanding Pressure Units

What is a Millibar (mbar)?

A millibar is a unit of pressure equal to one-thousandth of a bar. It's commonly used in meteorology for measuring atmospheric pressure. 1 millibar is equivalent to 100 pascals.

What is a Bar?

A bar is a metric unit of pressure equal to 100,000 pascals (Pa) or approximately 0.987 standard atmospheres. The bar is widely used in many scientific and engineering applications.

Common Pressure Values

  • Standard atmospheric pressure: 1,013.25 millibars = 1.01325 bars
  • Average sea-level pressure: 1,013 millibars = 1.013 bars
  • Typical high-pressure system: 1,020 millibars = 1.02 bars
  • Typical low-pressure system: 980 millibars = 0.98 bars