What Does PSI Mean for Air Compressors?

By Julia Watts | Content Manager

Meaning of PSI

PSI refers to pounds per square inch and it is considered the English unit of measure for pressure.

PSI measures how much force is in a certain area. Both force and area have an inverse relationship. As the force increases, pressure increases and where the area increases, pressure decreases.

PSI stands for pounds per square inch. It measures how much force is in a certain area – one pound-force applied to one square inch.

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Julia Watts Content Manager

Specializing in business energy, fleet management and fuel cards, Julia’s here to help your company power up and get on the move. Having spent years working in the dynamic world of startup entrepreneurship, she loves creating content that might help exciting ventures, big or small, to flourish.

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