PSI to Millibars

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psi
mbar
1 psi = — mbar

Quick reference

PSI (psi)Millibars (mbar)

Formula

Millibars = psi × 68.9476

Multiply the psi value by 68.94760000000001 to get millibars. To reverse — divide millibars by 68.94760000000001 to get psi.

About this conversion

Pounds per square inch (psi) is an imperial pressure unit widely used in the US for tire pressure, hydraulics, and gas pressure. Learn more →

The millibar (mbar) equals one thousandth of a bar, widely used in meteorology and weather forecasting. Learn more →

Source: NIST International Reference