Guides
Guides
What PPI tells you
Pixels per inch relates resolution to physical screen size.
GuidesEstimate screen width and height from diagonal
A diagonal plus aspect ratio is enough to estimate rectangular panel dimensions.
GuidesModel a multi-monitor desktop
Combined resolution is easy to calculate when displays are arranged side by side.
GuidesUse aspect ratio as a shape metric
A decimal ratio is useful for comparison even when common labels differ.
GuidesCompare displays with more than one number
PPI, physical size and resolution answer different questions.