Paper Size Guide
Look up standard paper dimensions for A-series, US, and print production formats without hunting through charts.
AK
appkiro.comCommon sizes for quick access.
International standard sizes with 1:√2 aspect ratio.
Geometric mean between A series sizes.
Envelope sizes - geometric mean between A and B.
Raw format sizes for printing before trimming.
Supplementary Raw Format A - extra bleed area.
North American office and press standards.
American National Standards Institute sizes.
American architectural drawing standards.
Japanese Industrial Standard paper sizes.
Chinese national standard paper sizes.
Swedish standard paper sizes.
Traditional French paper sizes.
Traditional British Imperial paper sizes.
Paper Sizes draws international paper formats next to each other at the correct proportions, lets you search the catalogue by name, dimension, or pixel size, and reads dimensions out of an image or PDF you upload. Two sizes can be compared at any time, side by side or overlaid.
Three things: a name like A4 or Letter, a millimetre or inch dimension such as 210x297mm or 8.5x11in, and a pixel size with a DPI like 1920x1080@300dpi. The dimension and pixel modes show closest matches with how far each candidate is from your target.
The width and height are divided by the chosen DPI to get inches, then converted to millimetres. The four DPI buttons (72, 150, 300, 600) update the conversion live.
It reads an image to grab pixel dimensions or a PDF to grab the first page size in points. Image dimensions feed the DPI converter; PDF dimensions are converted directly to millimetres because PDFs already use a physical unit.
When a search matches by name, only sizes whose name contains the query stay highlighted. When you search by dimension or pixels, only the top closest matches stay highlighted so you can spot them quickly inside the long catalogue.