A0    841 * 1189 mm                                     
B0   1030 * 1456

A1   594 * 841                                                   
B1   728 * 1030

A2   420 * 594                                                   
B2   515 * 728

A3   297 * 420                                                   
B3   364 * 515

A4   210 * 297   정부공문서 규격                    
B4   257 * 364     8절지

A5   148 * 210    교과서                                  
B5   182 * 257  16절지

A6   105 * 148     엽서                                     
B6   128 * 182     32절지

...