Quick lookup for A & B paper sizes and C envelope sizes, with simple conversion between dimensions in mm and inches. Across the world, apart from in North America, paper is sold in standard sizes defined by ISO 216. The key feature of these standard sizes being that if you cut a sheet in half parallel to the shortest edge you will get the next size down.
DISCLAIMER: DMOZing.com is not affiliated in any way, shape, or form with DMOZ, AOL, Netscape, their management, entities or their official websites. Links to external websites on this website does not constitute endorsement.