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Paper Sizes

 

ISO A paper sizes

The A paper size system was formally adopted in Europe in the 19th century and has since spread around the world. It is now used in nearly every country apart from the USA and Canada. A4 is the most common standard business letter size used in English speaking countries.

The A-series consists of a logical set of paper sizes that are defined by the ISO 216 standard. The largest size A0 measures one square meter. The height/width ratio remains constant (1:1.41) for all sizes. This simple means you get the A1 size by folding an A0 paper in two along its short side. Then fold the A1 size in two to get an A2 size paper, and so on.

 

841 x 1189mm
33.11 x 46.81 inches

594 x 841mm
23.39 x 33.11 inches

420 x 841mm
16.54 x 23.39 inches
SHOP A2 PRODUCTS

297 x 420mm
11.69 x 16.54 inches

210 x 297mm
8.27 x 11.69 inches
SHOP A4 PRODUCTS

148 x 210mm
5.83 x 8.27 inches
SHOP A5 PRODUCTS

105 x 148mm
4.13 x 5.83 inches

74 x 105mm
2.91 x 4.13 inches

52 x 74mm
2.05 x 2.91 inches

37 x 52mm
1.5 x 2.05 inches

ISO B paper sizes

The dimensions of the B series paper sizes are defined by the ISO 216 international paper size standard. The B series is not as common as the A series. The B series uses an aspect ratio of 1:√2. The area of the B series paper sheets is the geometric mean of the A series sheets. For example, B1 is between A0 and A1 in size.

 

ISO C paper sizes

The dimensions of the C series sizes are defined by the ISO 269 paper size standard. The C series is most commonly used for envelopes. The aspect ratio of C series envelopes is 1:√2, and this means that an A4 sheet of paper when folded in half, parallel to its smaller sides, will fit nicely into a C5 envelope.

 

707 x 1000mm
27.83 x 39.37 inches

500 x 707mm
19.69 x 27.83 inches
 

917 x 648mm
36.1 x 25.51 inches

648 x 458mm
25.51 x 18.03 inches
SHOP C2 PRODUCTS

353 x 500mm
13.90 x 19.69 inches

250 x 353mm
9.84 x 13.90 inches
SHOP B4 PRODUCTS
 

458 x 324mm
18.03 x 12.76 inches
SHOP C3 PRODUCTS

324 x 229mm
12.76 x 9.02 inches
SHOP C4 PRODUCTS

176 x 250mm
6.93 x 9.84 inches
SHOP B5 PRODUCTS

125 x 176mm
4.92 x 6.93 inches
SHOP B6 PRODUCTS
 

229 x 162mm
9.02 x 6.38 inches
SHOP C5 PRODUCTS

162 x 114mm
6.38 x 4.49 inches
SHOP C6 PRODUCTS

88 x 125mm
3.46 x 4.92 inches

62 x 88mm
2.44 x 3.46 inches
 

114 x 81mm
4.49 x 3.2 inches
SHOP C7 PRODUCTS

81 x 57mm
3.2 x 2.2 inches

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