Poster Sizes, Paper Sizes, Size Guide for Popular A, B & C Sizes
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PAPER SIZES & POSTER SIZES GUIDE

ISO paper standards are widely used. Originally for the litho and screen print industries where sizes need to be fixed they are still used extensively in the large format digital printing market although Large format digital printers use rolls rather than sheets of paper. This is due to the fact that most of the shelf display hardware for exhibition, retail and advertising are manufactured to take these set poster sizes. Poster frames, Billboards, Pavement signs come in set sizes. European displays are metric where in the UK we still have imperial sizes such as 20" x 30". Paper sizes listed below:
A Series Formats (mm) B Series Formats (mm) C Series Formats (mm)
4A0 1682 x 2378
2A0 1189 x 1682
A0 841 x 1189 B0 1000 x 1414 C0 917 x 1297
A1 594x 841 B1 707 x 1000 C1 648 x 917
A2 420 x 594 B2 500 x 707 C2 458 x 648
A3 297 x 420 B3 353 x 500 C3 324 x 458
A4 210 x 297 B4 250 x 353 C4 229 x 324
A5 148 x 210 B5 176 x 250 C5 162 x 229
A6 105 x 148 B6 125 x 176 C6 114 x 162
A7 74 x 105 B7 88 x 125 C7 81 x 114
A8 52 x 74 B8 62 x 88 C8 57 x 81
A9 37 x 52 B9 44 x 62 C9 40 x 57
A10 26 x 37 B10 31 x 44 C10 28 x 40

The magnification factors between all A sizes:

fromto A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
A0 100% 71% 50% 35% 25% 18% 12.5% 8.8% 6.2% 4.4% 3.1%
A1 141% 100% 71% 50% 35% 25% 18% 12.5% 8.8% 6.2% 4.4%
A2 200% 141% 100% 71% 50% 35% 25% 18% 12.5% 8.8% 6.2%
A3 283% 200% 141% 100% 71% 50% 35% 25% 18% 12.5% 8.8%
A4 400% 283% 200% 141% 100% 71% 50% 35% 25% 18% 12.5%
A5 566% 400% 283% 200% 141% 100% 71% 50% 35% 25% 18%
A6 800% 566% 400% 283% 200% 141% 100% 71% 50% 35% 25%
A7 1131% 800% 566% 400% 283% 200% 141% 100% 71% 50% 35%
A8 1600% 1131% 800% 566% 400% 283% 200% 141% 100% 71% 50%
A9 2263% 1600% 1131% 800% 566% 400% 283% 200% 141% 100% 71%
A10 3200% 2263% 1600% 1131% 800% 566% 400% 283% 200% 141% 100%

Large format printing Posters and printing sizes

Double Quad Crown  60 x 40" Elephant  28 x 23"
Quad Demy  45 x 35"  Super Royal  27 1⁄2 x 20 1⁄2"
Quad Crown  40 x30"  Double Foolscap  27 x 17"
Double Demy  35 x 22 1⁄2"  Royal  25 x 20"
Quad Foolscap  34 x 27"  Medium  23 x 18"
Double Large Post  33 x 21"  Demy  22 1⁄2 x 17 1⁄2" 
Double Post  31 1⁄2 x 19 1⁄2"  Music Demy  20 x 15 1⁄2" 
Imperial  30 x 22"  Crown  20 x 15" 
Double Crown  30 x 20" Post  19 1⁄4 x 15 1⁄2" 
- - Foolscap  17 x 13 1⁄2" 
 
Information bought to you by the UK's leading Eco-Friendly Large Format Printing company - Digital Display Printing.
Poster Sizes Guide

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