PSI Pressure Converter

Convert pressure measurements between PSI, Bar, Pascals, and Atmospheres.

Pressure Info

Pressure Value

Calculation Results

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About this calculator

Overview

Pounds per Square Inch (PSI) is a unit of pressure common in the US and UK. In the SI system, pressure is measured in Pascals (N/m²).

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Pro Tips

1 PSI is the pressure resulting from a force of one pound-force applied to an area of one square inch.
Standard atmospheric pressure at sea level is approximately 14.7 PSI.
Tire pressures are almost always given in PSI or Bar.

Fun Facts

Formula: 1 PSI ≈ 6894.76 Pa