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Paper and Envelope Sizes

Thursday, June 21, 2007

European paper sizes range from A0 to A10 and the principal is that the lower the number, the larger the size is. Also as you move from sizes to size, the area is doubled (or halved) for example, A5 = 2 x A6, A4 = 2 x A5 etc.

There is also a range of "C" sizes which follow the same pattern but which are slightly larger than their "A" counterparts and are commonly used for envelopes. So an A5 piece of paper would fit into a C5 envelope, the envelope needing to be slightly larger than the A5 piece of paper.

The following chart displays the various "A" and corresponding "C" size along with their metric and imperial dimensions.

Size Dimensions (Metric) Dimensions (Imperial) Size Dimensions (Metric) Dimensions (Imperial)
A0 841 x 1189  33" x 47" C0 917 x 1297  36" x  51"
A1 594 x 841  23" x 33" C1 648 x 917  25.5" x 36"
A2 420 x 594  16.5" x 23" C2 458 x 648  18" x 25.5"
A3 297 x 420  11.7" x 16.5" C3 324 x 458  12.8" x 18"
A4 210 x 297  8.3" x 11.7" C4 229 x 324  9" x 12.8"
A5 148 x 210  5.8" x 8.3" C5 162 x 229  6.4" x 9"
A6 105 x 148  4.1" x 5.8" C6 114 x 162  4.5" x 6.4"
A7 74 x 105  2.9" x 4.1" C7 81 x 114  3.2" x 4.5"
A8 52 x 74  2" x 2.9" C8 57 x 81  2.2" x 3.2"
A9 37 x 52  1.5" x 2" C9 40 x 57  1.6" x 2.2"
A10 26 x 37  1" x 1.5" C10 28 x 40  1.1" x 1.6"

Greeting card sizes are generally quoted as the size when folded, e.g. an A6 greeting card measures 105mm x 148mm when folded, but 148mm x 210mm when opened out.

For a more detailed review of paper and envelope sizes along with technical specifications and historical information, visit International Standard Paper Sizes

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posted by Liz-Craft on Thursday, June 21, 2007 Permalink »