Wolfram|Alpha Units & Measures

Display Formats

Display Resolution

get data on a computer display format
VGA display
compare formats
WXGA, QXGA
compute display characteristics from pixel count
1024 x 768 pixels
specify pixel density
1280x1024 pixels at 264 ppi 2.5 megapixel 300dpi display

Paper Sizes

get dimensions of a paper format
A4 paper
compare paper formats
legal paper vs ledger paper

Photo Sizes

compute characteristics of a photo size
8"x10" photograph
specify pixel density
4" x 6" photo at 72 ppi
get properties of a photo size
nearest paper sizes for a 5"x7" photo
compare photo sizes
5" by 7" photo vs 8" by 10" photo