PSI to Millibar Converter

Formula: mbar = PSI × 68.9475

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Understanding PSI and Millibars

Pounds per Square Inch (PSI)

PSI is a unit of pressure commonly used in the United States and United Kingdom. It represents the force in pounds applied to one square inch of area. PSI is frequently used for:

  • Tire pressure measurements
  • Industrial and hydraulic systems
  • Gas cylinder pressure

Millibars (mbar)

A millibar is a metric unit of pressure equal to 1/1000 of a bar. Millibars are commonly used in:

  • Meteorology and weather forecasting
  • Atmospheric pressure measurements
  • Scientific applications

Common Conversions

  • 1 PSI = 68.9475 millibars
  • 14.7 PSI = 1013.25 millibars (standard atmospheric pressure)
  • 29.92 PSI = 2062.4 millibars