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International Envelope Series



The R6 paper size, a member of the ISO 216 standard, is an intriguing format that holds its own unique place in the world of print and design. This standard, recognized globally, ensures consistency across different regions and industries. The R6 size specifically belongs to the RA series within this standard.

Measuring 1682 x 2378 mm or approximately 66.2 x 93.6 inches, R6 is one of the larger formats in the RA series. Its expansive dimensions make it ideal for large-scale applications such as posters, banners, and architectural drawings.

R6 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

One fascinating aspect about R6 is its aspect ratio - a perfect square root of two (1:√2). This unique ratio allows for seamless scaling between sizes within the ISO standards without distortion or loss of content.

Another noteworthy feature about R6 is its compatibility with digital printing technologies. Its dimensions align well with common digital print sizes, making it a popular choice among designers and printers who require high-quality outputs on a larger scale.

While not as commonly used as A4 or Letter sizes from ANSI series, R6 offers distinct advantages in specific applications due to its unique dimensions and aspect ratio. It's an essential tool in any designer's toolkit when large-scale prints are required.

Other Formats in the International Envelope Series

Interesting facts about R6

1: R6 paper is not a standard paper size

R6 paper is not part of the ISO 216 international paper size standard. It is a non-standard size that is not commonly used in the printing industry.

2: R6 paper has dimensions of 179 mm x 254 mm

The dimensions of R6 paper are approximately 179 mm x 254 mm (7.05 in x 10 in). It falls between the A5 and A4 sizes, making it slightly larger than A5 but smaller than A4.

3: R6 paper is sometimes used for booklets and brochures

Although not widely used, R6 paper can be utilized for creating booklets and brochures due to its unique size. Its dimensions make it suitable for folding into a compact booklet format.

4: The origin of the R series sizes

The R series sizes, including R6, were introduced by Japan as an alternative to the ISO standard sizes. These sizes were primarily developed for use in photocopiers and printers manufactured in Japan.

5: Limited availability of pre-cut R6 paper

Unlike standard ISO sizes, finding pre-cut sheets or reams of R6 paper can be challenging. Printers often need to cut larger sheets down to the desired size manually.

6: Customization options for R6-sized documents

R6-sized documents offer customization opportunities since they deviate from traditional standards. This uniqueness can help certain projects stand out or fulfill specific design requirements.

7: Compatibility issues with printing equipment

Due to its non-standard size, some printing equipment may not be compatible with R6 paper. Printers and copiers designed for ISO standard sizes may not accommodate R6 sheets.

8: Limited software support for R6 paper

Many popular design and word processing software do not include built-in templates or presets for R6 paper. Users often need to create custom document sizes manually.

9: Niche use in certain industries

R6 paper finds limited application in specific industries such as Japanese publishing, where it may be used for certain types of books or magazines that require a unique size.

10: Potential cost implications

The non-standard nature of R6 paper can lead to higher costs compared to standard sizes. Custom cutting, limited availability, and potential compatibility issues can contribute to increased expenses.