Pound per Square Inch ConversionsUse this easy and mobile-friendly calculator to convert between Pounds per Square Inch and other units of Pressure.
1 Pound per Square Inch ≈
Pounds per Square InchA pound per square inch, or psi, is a unit of pressure equal to the weight of one pound at sea level over an area of one square inch.
MillibarsA millibar is a unit of pressure equal to 1/1000th of a bar, or 100 pascals. Barometric pressure readings are often given in millibars.