Millibar

mbar

Commonly Used Scientific Unit

The millibar is the standard unit for expressing atmospheric pressure in meteorology and weather reporting. Atmospheric pressure at sea level is approximately 1013.25 mbar.

Quick Converter

1 mbar = kPa

Controls display format. Very small or very large numbers will be shown in scientific notation (e.g., 1.5e-6).

Millibar (mbar)

The millibar is the standard unit for expressing atmospheric pressure in meteorology and weather reporting. Atmospheric pressure at sea level is approximately 1013.25 mbar.

Characteristics

  • Metric unit
  • 1 mbar = 100 Pa
  • 1 mbar = 0.001 bar
  • 1 mbar = 1 hectopascal (hPa)
  • Used in: weather forecasts, meteorology, barometers

Conversions

  • 1 mbar = 100 Pa
  • 1 mbar = 0.1 kPa
  • 1 mbar = 0.001 bar
  • 1 mbar = 0.000987 atm
  • 1 mbar = 0.0145038 psi
  • 1013.25 mbar = 1 standard atmosphere

Related Units

Used In Regions

Meteorology International
← Back to Pressure