Imperial Paper Sizes

Further Information

Traditionally, a number of different sizes were defined for large sheets of paper, and paper sizes were defined by the sheet name and the number of times it had been folded. Thus a full sheet of 'royal' paper was 25 × 20 inches, and 'royal octavo' was this size folded three times, so as to make eight sheets, and was thus 10 ×  6 1/4 inches. Imperial sizes were used in the United Kingdom and its territories.

Source: Wikipedia

Format Width x Height (mm) Width x Height (in)
Emperor 1219 x 1829 mm 48 x 72 in
Quad Demy 889 x 1143 mm 35 x 45 in
Antiquarian 787 x 1346 mm 31 x 53 in
Grand Eagle 730 x 1067 mm 28.7 x 42 in
Double Elephant 678 x 1016 mm 26.7 x 40 in
Atlas 660 x 864 mm 26 x 34 in
Columbier 597 x 876 mm 23.5 x 34.5 in
Double Demy 572 x 902 mm 22.5 x 35.5 in
Imperial 559 x 762 mm 22 x 30 in
Double Large Post 533 x 838 mm 21 x 33 in
Elephant 584 x 711 mm 23 x 28 in
Princess 546 x 711 mm 21.5 x 28 in
Cartridge 533 x 660 mm 21 x 26 in
Royal 508 x 635 mm 20 x 25 in
Sheet, Half Post 495 x 597 mm 19.5 x 23.5 in
Double Post 483 x 762 mm 19 x 30 in
Super Royal 483 x 686 mm 19 x 27 in
Broadsheet 457 x 610 mm 18 x 24 in
Medium 470 x 584 mm 18.5 x 23 in
Demy 445 x 572 mm 17.5 x 22.5 in
Copy Draught 406 x 508 mm 16 x 20 in
Large Post 394 x 508 mm 15.5 x 20 in
Post 394 x 489 mm 15.5 x 19.3 in
Crown 381 x 508 mm 15 x 20 in
Pinched Post 375 x 470 mm 14.8 x 18.5 in
Foolscap 343 x 432 mm 13.5 x 17 in
Small Foolscap 337 x 419 mm 13.3 x 16.5 in
Brief 343 x 406 mm 13.5 x 16 in
Pott 318 x 381 mm 12.5 x 15 in
Quarto 229 x 279 mm 9 x 11 in
Monarch 184 x 267 mm 7.2 x 10.5 in