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International Envelope Series



Belonging to the ISO 216 international paper size standard, R2 is a unique and versatile paper size. This standard, recognized globally except in North America where the ANSI series is prevalent, ensures consistency in dimensions across different paper types.

R2 measures 432 x 559 mm or approximately 17 x 22 inches. This makes it an ideal choice for various applications ranging from architectural drawings to graphic designs and large-scale advertisements. Its generous dimensions provide ample space for detailed work, making it a favorite among professionals who require precision and clarity.

R2 paper dimensions


View All International Envelope Series

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

Interestingly, the ISO 216 standard that R2 adheres to is based on an aspect ratio of √2:1. This unique ratio allows for seamless scaling between sizes without distortion or loss of content - a feature that sets it apart from other paper size standards.

The R2's versatility extends beyond its physical attributes. It also plays a significant role in environmental sustainability efforts. Many printing companies prefer using R2 due to its efficient use of materials which reduces waste and promotes sustainable practices.

Whether you're looking at functionality or sustainability, the R2 stands out as an exceptional choice within the ISO 216 series. Its unique features make it not just another paper size but rather a tool that enhances productivity while promoting eco-friendly practices.

Other Formats in the International Envelope Series

Interesting facts about R2

1: R2 paper is part of the ISO 216 standard

R2 paper is a specific size within the ISO 216 standard, which defines the series of paper sizes used globally. It falls under the A series, which is commonly used for printing and stationery purposes.

2: R2 paper measures approximately 450 x 640 millimeters

The dimensions of R2 paper are approximately 450 x 640 millimeters or about 17.7 x 25.2 inches. It has a unique aspect ratio that allows for easy scaling and resizing without losing proportions.

3: R2 paper is larger than A3 but smaller than A2

In terms of size, R2 paper sits between A3 and A2 papers in the ISO series. It offers a slightly larger surface area compared to A3 but is smaller than A2, making it suitable for various printing needs such as posters or architectural drawings.

4: R-series papers are often used in technical drawings

The R-series papers, including R2, are commonly utilized in technical drawings and blueprints due to their convenient size and aspect ratio. They provide ample space for detailed diagrams while maintaining readability.

5: The ISO series was based on German DIN standards

The ISO paper sizes were derived from the German DIN (Deutsches Institut für Normung) standards introduced in the early twentieth century. The DIN system aimed to establish consistent sizing across different industries and applications.

6: The aspect ratio of all ISO papers remains constant

An interesting feature of ISO papers, including R-series, is that they all share an identical aspect ratio. The ratio between the longer and shorter sides is always approximately 1.414, which allows for easy scaling and compatibility between different sizes.

7: R2 paper can be used to create folded brochures

R2 paper's dimensions make it suitable for creating folded brochures or pamphlets. By folding it in half, you can obtain a size similar to A3, which provides ample space for content while maintaining a compact form.

8: R2 paper is not as widely available as standard A-series papers

While A-series papers are commonly found in stationery stores and print shops worldwide, R2 paper might be less readily available due to its specific size and specialized use cases. However, it can usually be obtained from specialty paper suppliers or online retailers.

9: The ISO series includes both larger and smaller sizes than R2

The ISO series encompasses a wide range of paper sizes beyond R2. It includes larger formats such as A0, A1, B0, B1, as well as smaller ones like A4, A5, B5. This variety ensures there is an appropriate size for various printing needs.

10: The ISO series has become the global standard for paper sizing

The ISO 216 standard has been widely adopted around the world since its introduction in the twentieth century. It ensures consistency in paper sizes across different countries and industries, facilitating international communication and printing practices.