What is psi?

What is psi?

Psi (symbol: ψ) is a unit of pressure in the metric system. It is commonly used to measure tire pressure, gas pressure, and pressure in various other applications.

1 psi is equal to approximately 6,894.76 Pascals, which is a standard unit of pressure in the International System of Units (SI). It is also equivalent to 0.0689475729 atmospheres and 51.7149 kilopascals.

In tire pressure, psi is used to indicate the recommended pressure for a tire, which is usually imprinted on the sidewall of the tire. Keeping the tire pressure at the recommended level helps to improve fuel efficiency, maintain vehicle handling and stability, and extend tire life.

In other applications, psi is used to measure the pressure of gases, liquids, and other materials. It is a versatile unit of pressure that is widely used across many industries, including engineering, physics, and environmental science.