ขนาดกระดาษ

‘A’ size — size in millimeters — approx inches
2A0 — 1,189 x 1,682 mm — 46.8 x 66.2 in
A0 — 841 x 1,189 mm — 33.1 x 46.8 in
A1 — 594 x 841 mm — 23.4 x 33.1 in
A2 — 420 x 594 mm — 16.5 x 23.4 in
A3 — 297 x 420 mm — 11.7 x 16.5 in
A4 — 210 x 297 mm — 8.3 x 11.7 in
A5 — 148 x 210 mm — 5.8 x 8.3 in
A6 — 105 x 148 mm — 4.1 x 5.8 in
A7 — 74 x 105 mm — 2.9 x 4.1 in