Transitional Paper Sizes

PA0 840 × 1120 mm PA1 560 × 840 mm PA2 420 × 560 mm PA3 280 × 420 mm PA4 210 × 280 mm PA5 140 × 210 mm PA6 105 × 140 mm PA7 70 × 105 mm PA8 52 × 70 mm PA9 35 × 52 mm PA10 26 × 35 mm F0 841 × 1321 mm F1 660 × 841 mm F2 420 × 660 mm F3 330 × 420 mm F4 210 × 330 mm F5 165 × 210 mm F6 105 × 165 mm F7 82 × 105 mm F8 52 × 82 mm F9 41 × 52 mm F10 26 × 41 mm

Further Information

The transitional paper size formats consist of the PA Series and the F Series. The PA Series proposed to be included into the ISO 216 standard in 1975. They were rejected by the committee who decided that the number of standardised paper formats should be kept to a minimum. However this series is still used today, in particular PA4 (or L4). Its width is that of the ISO standard A4, and height of Canadian P4 (210mm × 280mm). The PA4 format can easily be printed on equipment designed for A4 or US Letter size, which is why it is used by many international magazines, and is a good solution as the format of presentation slides. PA4 is more of a page format than a paper size. It has a 4:3 aspect ratio when in landscape orientation.

In Southeast Asia, a common size used is the non-standard F4. The longer side is 330mm, which is the same as the British Foolscap. The shorter side is 210mm, which is the same as the ISO A4. The F4 is occasionally known as (metric) Foolscap or Folio.

Format	Width × Height (mm)	Width × Height (in)
PA0	840 × 1120 mm	33.1 × 44.1 in
PA1	560 × 840 mm	22 × 33.1 in
PA2	420 × 560 mm	16.5 × 22 in
PA3	280 × 420 mm	11 × 16.5 in
PA4	210 × 280 mm	8.3 × 11 in
PA5	140 × 210 mm	5.5 × 8.3 in
PA6	105 × 140 mm	4.1 × 5.5 in
PA7	70 × 105 mm	2.8 × 4.1 in
PA8	52 × 70 mm	2 × 2.8 in
PA9	35 × 52 mm	1.4 × 2 in
PA10	26 × 35 mm	1 × 1.4 in
F0	841 × 1321 mm	33.1 × 52 in
F1	660 × 841 mm	26 × 33.1 in
F2	420 × 660 mm	16.5 × 26 in
F3	330 × 420 mm	13 × 16.5 in
F4	210 × 330 mm	8.3 × 13 in
F5	165 × 210 mm	6.5 × 8.3 in
F6	105 × 165 mm	4.1 × 6.5 in
F7	82 × 105 mm	3.2 × 4.1 in
F8	52 × 82 mm	2 × 3.2 in
F9	41 × 52 mm	1.6 × 2 in
F10	26 × 41 mm	1 × 1.6 in