Pebibyte (PiB)

A pebibyte is a very large unit of digital data that measures storage in binary form so computers can count data exactly and clearly.

Petabyte (PB)

A petabyte is a very large unit for measuring digital data, often used to describe big databases, cloud storage, and data centers.

Pounds per Square Inch (psi)

Pounds per square inch psi is a unit that measures how strongly a force presses on a surface and is widely used for tire and fluid pressure.

Pascal (Pa)

Pascal, written as Pa, is a unit that tells us how strongly something pushes on a surface, like air pressing on your skin or water on a pool wall.

Pressure

Pressure is the force spread over an area, and this guide explains what it means, how we measure it, and how to convert between common pressure units.

US Pint (pt)

A US pint is a common liquid measure used in the United States, helpful for cooking, shopping, and understanding drink sizes.