PPI

PPI is an acronym that can refer to different concepts depending on the context. Two common meanings are Pixels per inch and Producer Price Index.

Pixels per inch refers to the density of pixels in a digital image or on a display screen. It is calculated by dividing the diagonal pixel resolution by the diagonal size of the screen in inches. A higher PPI indicates greater sharpness and detail, while the term is closely related to the concept of dots per inch (DPI) used in printing. PPI describes the pixel density of a device or image file and helps determine how large a picture will appear on a given screen. It is important to distinguish PPI from DPI, though they are related in considerations of image clarity.

Producer Price Index is an economic indicator that measures average changes over time in the selling prices received by domestic producers for their goods and services. In the United States, the PPI is published monthly by the Bureau of Labor Statistics and covers three main stages of production: finished goods, intermediate goods, and crude materials. The index provides insight into inflationary pressures at the wholesale level and is used by policymakers, economists, and contracting parties to assess price trends and adjust for inflation. It differs from the Consumer Price Index, which tracks prices paid by consumers.

Other uses of PPI exist in specialized fields, but Pixels per inch and Producer Price Index are the most widely recognized. When encountering the term, identifying the field or domain helps determine the intended meaning.