Metric Paper Sizes - A Paper Series
The A Paper Series is a globally recognized paper size series used in all countries except United States, Mexico and Canada. It is based on the international paper size standard ISO 216, which originated from the German standard DIN 476.
This Series was introduced in Germany in 1922 as DIN 476. In the next twenty years it was adopted by nine other countries in Europe. However, after World War II it quickly spread to other countries - in Europe and on other continents. By 1975 the A Paper Series was a global standard and was officially established as ISO 216 Standard.
It should be noted that there are several countries where ISO 216 is an official paper size standard but "letter", "legal" or other standards are still widely used.
Width to Length ratio of paper sizes in this series is equal to square root of 2, so approximately 1:1.4142. The largest paper size in this series, i.e. A0, has an area of 1m2. All smaller paper sizes thereafter (A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10) have half the area of the preceding paper size. What this means is that A1 paper size has an area of 0.5m2, A2 has an area of 0.25m2 and so on. This is achieved by halving the preceding paper size across the larger dimension. This allows the 1:1.4142 aspect ratio to be maintained for all paper sizes in the A Paper Series. The most popular paper size is A4 measuring 210mm by 297mm (8.27in by 11.69in).
The below diagrams are to give paper measurements and visually explain how each of the sizes in this series is created.
The A Paper Series is a globally recognized paper size series used in all countries except United States, Mexico and Canada. It is based on the international paper size standard ISO 216, which originated from the German standard DIN 476.
This Series was introduced in Germany in 1922 as DIN 476. In the next twenty years it was adopted by nine other countries in Europe. However, after World War II it quickly spread to other countries - in Europe and on other continents. By 1975 the A Paper Series was a global standard and was officially established as ISO 216 Standard.
It should be noted that there are several countries where ISO 216 is an official paper size standard but "letter", "legal" or other standards are still widely used.
Width to Length ratio of paper sizes in this series is equal to square root of 2, so approximately 1:1.4142. The largest paper size in this series, i.e. A0, has an area of 1m2. All smaller paper sizes thereafter (A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10) have half the area of the preceding paper size. What this means is that A1 paper size has an area of 0.5m2, A2 has an area of 0.25m2 and so on. This is achieved by halving the preceding paper size across the larger dimension. This allows the 1:1.4142 aspect ratio to be maintained for all paper sizes in the A Paper Series. The most popular paper size is A4 measuring 210mm by 297mm (8.27in by 11.69in).
The below diagrams are to give paper measurements and visually explain how each of the sizes in this series is created.
Dimensions of A0 Paper Size:
Dimensions of A1 Paper Size:
Dimensions of A2 Paper Size:
Dimensions of A3 Paper Size:
Dimensions of A4 Paper Size:
Dimensions of A5 Paper Size:
Dimensions of A6 Paper Size:
Dimensions of A7 Paper Size:
Dimensions of A8 Paper Size:
Dimensions of A9 Paper Size:
Dimensions of A10 Paper Size:
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