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German Series



Belonging to the ISO 216 international paper size standard, DIN C1 is a unique and versatile paper size. This standard, recognized globally, ensures consistency in the dimensions of paper sizes across different countries and industries. The DIN C1 measures 917 x 648 millimeters or approximately 36.1 x 25.5 inches.

As part of the C series in the ISO classification, DIN C1 is primarily used for envelopes designed to accommodate B series paper without folding. This makes it an ideal choice for businesses and individuals who prioritize presentation and professionalism in their correspondence.

DIN C1 paper dimensions


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2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

The dimensions of DIN C1 are calculated using a specific aspect ratio - √2:1 - which is common across all ISO 216 standards. This unique aspect ratio allows for seamless scaling between different sizes within the series without distortion or loss of content.

Interestingly, while ANSI standards are more prevalent in North America, DIN C1 and other ISO sizes have gained increasing acceptance due to their mathematical consistency and ease of scalability. As such, understanding this format can be beneficial when dealing with international documents or designing print materials for a global audience.

DIN C1 represents more than just a paper size; it's part of an internationally recognized system that promotes consistency and efficiency in printing and document management worldwide.

Other Formats in the German Series

Interesting facts about DIN C1

1: DIN C1 Paper Size

DIN C1 paper size is part of the DIN paper series, which is based on the German Institute for Standardization (Deutsches Institut für Normung) standards. It measures 648 mm x 917 mm, making it one of the largest standard paper sizes in the series.

2: Proportional Ratios

The DIN C1 paper size maintains a proportional ratio of √2:1, just like other papers in the DIN series. This means that if you divide its longer side by its shorter side, you will always get approximately 1.4142.

3: Historical Origins

The DIN paper sizes were first introduced in Germany during the early 20th century to standardize paper dimensions and simplify printing processes. The goal was to create a system that would allow for easy scaling and compatibility between different printers and papers.

4: Common Uses

DIN C1 paper is commonly used for large format printing applications such as posters, banners, architectural plans, and technical drawings. Its generous size allows for detailed designs and ample space for information.

5: International Variations

The DIN C1 size is not widely adopted outside of Europe. In other parts of the world, alternative large format sizes are often used instead, such as ANSI E or Arch E in North America.

6: Folding Possibilities

Due to its dimensions and proportional ratio, folding a DIN C1 sheet once along its longer side will result in two equal halves with dimensions equivalent to a folded A0 sheet (DIN A0 = √2 x √2 x DIN C1).

7: Paper Weight Considerations

When choosing paper for printing on DIN C1 size, it is important to consider its weight. The larger the paper, the heavier it tends to be. This can affect printing and handling processes, as well as transportation costs.

8: Environmental Impact

The production of large format papers like DIN C1 requires significant amounts of resources and energy. As a responsible printer, it is essential to promote sustainable practices by using eco-friendly paper options and recycling waste materials.

9: Cutting Challenges

Cutting a DIN C1 sheet precisely can be challenging due to its size. Specialized cutting equipment or professional print services are often required to ensure accurate trimming without damaging the paper.

10: Artistic Possibilities

DIN C1's generous dimensions offer artists and designers ample space for creative expression. It allows for intricate details, bold designs, and eye-catching visuals that can make a strong impact when displayed in galleries or public spaces.