Open the paper tray of your printer and look at the available paper sizes. If you think that “Letter” size (8.5 x 11) is what most people use, then think again! Have a look at that A4 paper size. You may have never even noticed it before. Or perhaps you thought it is some weird size that nobody ever uses.

Actually, you might be surprised to learn that A4 Size Paper is the most commonly used paper size on Earth. Your printer paper tray has an adjustment to accommodate A4 which is a little taller and a little narrower than “Letter” size. By 1975 so many countries were using A4 that it is established as an ISO standard, as well as the official United Nations document size.

International Paper Size A4 is the established ISO standard adopted by all countries in the world except the United States and Canada.

Unfortunately, Mexico, Costa Rica, Colombia, Venezuela, Chile and the Philippines are places where the US “Letter” size is still in common use, despite their official adoption of the ISO standard.

How does A4 have a dimension of 210 mm × 297 mm? Well, A0 (841 mm × 1189 mm) is defined so that it has an area of 1 square meter before rounding. Successive paper sizes in the series (A1, A2, A3, et cetera) are defined by cutting in half the length of the preceding paper size.

Well, if you think this is boring, then you have probably stopped reading by now, but since you are still reading, I guess you might be interested enough to receive ten free sample sheets of A4 Size Paper. There is no catch. Just tell me where to send it via MetricPioneer.com/contact-us/ and be sure to put Free A4 in the subject line.

Click on the image below to see a video on the subject: