Paper size

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Comparing different paper sizes

Paper comes in different sizes. There are names for the different sizes of paper. In different parts of the world, different sizes and names are used.

There are also envelope sizes made to fit different kinds of paper.

International sizes[change | change source]

In most of the world an international system of paper sizes is used. The normal size of paper is called A4. It is measured in metric units. It is 210 millimetres wide and 297 millimetres long. This is about the size of US letter, but it is a little narrower, and a little longer. The Deutsches Institut für Normung chose this standard in 1922 and other countries soon followed.

The other common size of paper in Europe is called B5. It is 176 millimetres wide by 250 millimetres long. This is about the same as executive size in the United States. It is sometimes used for writing personal letters to people.

There are also many other paper sizes used for writing notes, for big posters, for books, and for other things.

In the international paper size system, the sizes are based on mathematical formulas. A0 is the biggest at 1 square metre. A1 is half as big as A0. A2 is half as big as A1, and so on. The sizes with "B" and "C" in their name are in between the "A" sizes.

Sizes in United States and Canada[change | change source]

In the United States and Canada the normal size of paper is called letter size, or sometimes US letter. It is ​8 12 inches wide and 11 inches long (216 × 279 mm).

The other common size of paper in the US is called legal, or sometimes US legal. It is also ​8 12 inches wide, but it is 14 inches long. It is similar to the size called foolscap in Britain.

Another size is called executive. It is ​7 14 inches wide by ​10 12 inches long. It is not very common. It is sometimes used for writing personal letters to people.

There is also a size called tabloid. It is 11 inches wide, and 17 inches long. That is the same size as two pieces of letter size put next to each other.

There are also many other paper sizes used for writing notes, for big posters, for books, and for other things.

Paper sizes and computer printers[change | change source]

Most printers used with computers are designed to fit US letter and A4, and smaller paper sizes. Sometimes they can fit US legal also. For larger paper sizes, printers at professional printing businesses may be needed.

Details[change | change source]

Below are charts showing all the different sizes of paper that are usually made, listed in increasing order of size. Dimensions are shown width first, then length.

If a company wants to make something with a different size of paper than these, they have to have it specially cut for them.

US/Canada Paper Sizes
Name Inches mm Ratio
Statement 5 12 × ​8 12 140 × 216 1.5455
Executive 7 14 × ​10 12 184 × 267 1.4483
Quarto 8 × 10 203 × 254 1.25
Government-letter 8 × ​10 12 203 × 267 1.3125
ANSI A, Letter 8 12 × 11 216 × 279 1.2941
Foolscap 8 × 13 203 × 330 1.625
Legal 8 12 × 14 216 × 356 1.6471
ANSI B, Ledger, Tabloid 11 × 17 279 × 432 1.5455
Post 15 12 × ​19 14 394 × 489 1.2419
Crown 15 × 20 381 × 508 1.3333
Large post 16 12 × 21 419 × 533 1.2727
ANSI C 17 × 22 432 × 559 1.2941
Demy 17 12 × ​22 12 445 × 572 1.2857
Medium 18 × 23 457 × 584 1.2778
Royal 20 × 25 508 × 635 1.25
ANSI D 22 × 34 559 × 864 1.5455
Double demy 22 12 × 35 572 × 889 1.5542
Elephant 23 × 28 584 × 711 1.2174
ANSI E 34 × 44 864 × 1118 1.2941
Quad demy 35 × 45 889 × 1143 1.2857
International Paper Sizes (in mm)
A B C
0 841 × 1189 1000 × 1414 917 × 1297
1 594 × 841 707 × 1000 648 × 917
2 420 × 594 500 × 707 458 × 648
3 297 × 420 353 × 500 324 × 458
4 210 × 297 250 × 353 229 × 324
5 148 × 210 176 × 250 162 × 229
6 105 × 148 125 × 176 114 × 162
7 74 × 105 88 × 125 81 × 114
8 52 × 74 62 × 88 57 × 81
9 37 × 52 44 × 62 40 × 57
10 26 × 37 31 × 44 28 × 40