Paper Size

There have been many standard sizes of paper at different times and in different countries, but today there are two widespread systems in use: the international standard (A4 and its siblings) and the North American sizes.

Contents 1 The international standard: ISO 216 1.1 German extensions 1.2 Swedish extensions 1.3 Japanese B-series variant 2 North American paper sizes 2.1 Loose sizes 2.1.1 ANSI paper sizes 2.1.2 Architectural sizes 2.1.3 Other sizes 2.2 Tablet sizes 3 Traditional inch-based paper sizes 4 Transitional paper sizes 4.1 PA series 4.2 Antiquarian 4.3 F4 5 Other metric sizes