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German Series



Belonging to the ISO 216 standard, DIN A5 is a paper size that holds significant importance in the world of print and design. This format, measuring 148 x 210 millimeters or 5.8 x 8.3 inches, is precisely half the size of its predecessor, DIN A4.

As part of the A series in this international standard, DIN A5's dimensions are derived from an aspect ratio of √2:1. This unique characteristic ensures that when a sheet is cut or folded in half along its longest side, it retains the same aspect ratio.

DIN A5 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

DIN A5's compact yet spacious layout makes it an ideal choice for various applications. From brochures and flyers to small booklets and journals, this versatile paper size caters to diverse needs while maintaining a professional appearance.

Interestingly enough, despite being globally recognized under ISO standards, DIN A5 does not align with any ANSI (American National Standards Institute) sizes used predominantly in North America. This discrepancy highlights the regional variations in paper sizing standards across different parts of the world.

DIN A5 stands as a testament to thoughtful design principles that prioritize consistency and versatility. Its widespread use across multiple domains underscores its effectiveness as a medium for communication and expression.

Other Formats in the German Series

Interesting facts about DIN A5

1: The Origin of DIN A5

DIN A5 paper is part of the international standard paper size series known as the ISO 216. It was first introduced in Germany in the early 20th century and later adopted by many countries worldwide.

2: Half the Size, Double the Fun

DIN A5 measures exactly half the size of its larger counterpart, DIN A4. When folded in half, an A4 sheet becomes an A5 sheet.

3: Perfect for Pocket Notebooks

The compact size of DIN A5 makes it ideal for pocket notebooks and journals. Its dimensions (148 x 210 mm or 5.8 x 8.3 inches) provide a convenient balance between portability and writing space.

4: Popular Among Students

DIN A5 is commonly used by students for taking notes, making flashcards, and creating study guides due to its manageable size and ease of organization.

5: Commonly Used for Flyers

DIN A5 is often chosen as a standard format for flyers, brochures, and promotional materials. Its compact size allows for easy distribution while still providing enough space to showcase important information or visuals.

6: The "A" Series Proportions

The aspect ratio of all ISO paper sizes within the "A" series remains constant at approximately √2 (1 to √2). This means that when you divide a sheet in half along its longer side, you get two sheets with identical proportions.

7: International Standardization Efforts

The adoption of ISO 216 and the DIN A series helped streamline paper production and usage worldwide. It facilitated compatibility between different printing systems, reduced waste, and simplified document handling.

8: A5 in Artistic Expression

DIN A5 is a popular choice for artists working on sketches, drawings, or small paintings. Its size allows for quick experimentation and easy storage of finished pieces.

9: The "DIN" in DIN A5

The term "DIN" stands for Deutsches Institut für Normung (German Institute for Standardization), which played a significant role in establishing the ISO 216 standard and the DIN paper sizes.

10: Variations Across Countries

While most countries adhere to the ISO 216 standard, some regions have their own unique paper size systems. For example, North America uses different letter-based sizes such as Letter (8.5 x 11 inches) instead of DIN A series.