A Paper Sizes

A Paper Size in cm, inches

A series paper sizes and dimensions are defined by the ISO 216 international paper size standard. The A series is comman and world wide used paper size. The base A0 size of paper is defined as having an area of 1 m2 and a dimension ratio of 1 to √2. Successive paper sizes in the series A1, A2, A3, and so forth, are defined by halving the preceding paper size across the larger dimension. This also effectively halves the area of each sheet. The most frequently used paper size is A4 measuring 210 by 297 millimetres (8.27 in × 11.7 in). The standard dimensions are rounded to the nearest millimetre.

A Paper Sizes
Size Millimeters Inches
A0 size 841 x 1189 mm 33.1 x 46.8 in
A1 size 594 x 841 mm 23.4 x 33.1 in
A2 size 420 x 594 mm 16.5 x 23.4 in
A3 size 297 x 420 mm 11.7 x 16.5 in
A4 size 210 x 297 mm 8.3 x 11.7 in
A5 size 148 x 210 mm 5.8 x 8.3 in
A6 size 105 x 148 mm 4.1 x 5.8 in
A7 size 74 x 105 mm 2.9 x 4.1 in
A8 size 52 x 74 mm 2 x 2.9 in
A9 size 37 x 52 mm 1.5 x 2 in
A10 size 26 x 37 mm 1 x 1.5 in
A11 size 18 x 26 mm 0.7 x 1 in
A12 size 13 x 18 mm 0.5 x 0.7 in
A13 size 9 x 13 mm 0.4 x 0.5 in
2A0 size 1189 x 1682 mm 46.8 x 66.2 in
4A0 size 1682 x 2378 mm 66.2 x 93.6 in
A0+ size 914 x 1292 mm 36 x 50.9 in
A1+ size 609 x 914 mm 24 x 36 in
A3+ size 329 x 483 mm 12.9 x 19 in
A0
841 x 1189 mm
A1
594 x 841 mm
A2
420 x 594 mm
A3
297 x 420 mm
A4
210 x 297 mm
A5
148 x 210 mm
A6
105 x 148 mm
A7
74 x 105 mm
A8
52 x 74 mm
A9
37 x 52 mm
A10
26 x 37 mm
A11
18 x 26 mm
A12
13 x 18 mm
A13
9 x 13 mm
2A0
1189 x 1682 mm
4A0
1682 x 2378 mm
A0+
914 x 1292 mm
A1+
609 x 914 mm
A3+
329 x 483 mm