الفئة A المقياس	مم×مم (mm)	بوصة×بوصة
A0	841 × 1189 mm	33.1 × 46.8 in
A1	594 × 841 mm	23.4 × 33.1 in
A2	420 × 594 mm	16.5 × 23.4 in
A3	297 × 420 mm	11.7 × 16.5 in
A4	210 × 297 mm	8.3 × 11.7 in
A5	148 × 210 mm	5.8 × 8.3 in
A6	105 × 148 mm	4.1 × 5.8 in
A7	74 × 105 mm	2.9 × 4.1 in
A8	52 × 74 mm	2 × 2.9 in
A9	37 × 52 mm	1.5 × 2 in
A10	26 × 37 mm	1 × 1.5 in
A11	18 × 26 mm	0.7 × 1 in
A12	13 × 18 mm	0.5 × 0.7 in
A13	9 × 13 mm	0.4 × 0.5 in