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ISO Paper Sizes

The table below details the ISO paper sizes. These are standard sizes that make the most efficient use of the paper. In addition, we may use larger sheets to be able to accommodate additional items we need for the printing and finishing processes we employ.

SIZEISO PAPER SIZE IN MMISO PAPER SIZE IN CMISO PAPER SIZE IN INCHES
A0841 mm x 1189 mm84.1 cm x 118.9 cm(33 in x 46.81 in)
A1594 mm x 841 mm59.4 cm x 84.1 cm(23.39 in x 33 in)
A2420 mm x 594 mm 42.0 cm x 59.4 cm(16.54 in x 23.36 in)
A3297 mm x 420 mm 29.7 cm x 42.0 cm (11.69 in x 16.54 in)
A4210 mm x 297 mm21.0 cm x 29.7 cm(8.27 in x 11.69 in)
A5148 mm x 210 mm14.8 cm x 21.0 cm(5.83 in x 8.27 in)
A6105 mm x 148 mm 10.5 cm x 14.8 cm(4.13 in x 5.83 in)
A774 mm x 105 mm 7.4 cm x 10.5 cm(2.91 in x 4.13 in)

ISO paper sizes are a standardized system of paper dimensions that are widely used across the world. These sizes are established by the International Organization for Standardization (ISO), and are based on the metric system. This system of paper sizes is designed to facilitate easy and efficient communication, as well as printing and copying.

Standard international paper size. Empty page, a2, a3, a4 and other formats vector illustration

The ISO paper size system is based on the A series, which consists of a set of paper sizes that increase in size in a consistent manner. The A series includes A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, and A10. The size of each paper in the A series is based on the dimensions of the previous paper in the series, with each paper being exactly half the size of the one before it. This means that A1 is half the size of A0, A2 is half the size of A1, and so on.

The most commonly used paper size in the ISO paper size system is A4, which measures 210mm x 297mm (8.27 inches x 11.69 inches). A4 is the standard size for documents, letters, and forms in many countries, including Europe and Australia. In contrast, the most commonly used paper size in the United States is Letter size, which measures 8.5 inches x 11 inches (215.9mm x 279.4mm).

One of the main advantages of the ISO paper size system is that it facilitates easy scaling. Because the size of each paper in the A series is based on the dimensions of the previous paper in the series, it is easy to scale documents up or down without having to worry about aspect ratios or other factors. For example, if you have a document that is printed on A4 paper, you can easily scale it up to A3 or down to A5 without having to worry about distorting the proportions of the document.

Another advantage of the ISO paper size system is that it reduces paper waste. Because each paper in the A series is based on the dimensions of the previous paper in the series, it is possible to cut each paper size from the next largest size with no waste. For example, two A4 sheets can be cut from an A3 sheet, and four A4 sheets can be cut from an A2 sheet, and so on. This reduces the amount of paper waste generated during the printing and cutting process, which is good for the environment and can also help to save money on paper costs.

In addition to the A series, the ISO paper size system also includes the B series and the C series. The B series is based on the geometric mean of the A series, and includes B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10. The C series is used primarily for envelopes, and includes C0, C1, C2, C3, C4, C5, C6, C7, C8, C9, and C10.

The B series is similar to the A series in that each paper size is half the size of the one before it, but the B series has different dimensions than the A series. The B series is designed to be used for posters, wall charts, and other large format printing projects. The C series is based on the size of an A series paper with the same number, but it is designed to be used for envelopes.

There are some variations in paper sizes across different countries, even within the ISO paper size system. For example, in North America, Letter size is the most commonly used paper size, whereas in most other countries, A4 is the standard size for documents and letters.

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