Density-independent pixels (dp)
Density-independent pixels (dp, pronounced “dips”) are density-independent units of measurement used in Android and Material Design so that elements have a similar physical size on any screen
What it means, how it is used and where it comes up, with its related concepts.
What it is and how it works
One dp equals one physical pixel on a 160 DPI screen; on denser screens, the system scales it automatically. So a 48 dp button takes up roughly the same space on an entry-level phone as on a high-resolution one.
They are used for dimensions and spacing; text uses sp, which also respects the font size chosen by the user. The iOS equivalent is the point (pt) and, on the web, CSS pixels play a similar role.
Also known as
dp, dip