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International Envelope Series



Belonging to the realm of non-standard paper sizes, X10 is a unique entity. It's not part of any conventional ISO or ANSI series, which typically govern the dimensions of standard paper sizes. This distinctiveness sets X10 apart, making it an intriguing choice for specific applications.

While most are familiar with A4 or Letter size papers, the X10 size may not ring a bell for many. However, its uniqueness lies in its adaptability and versatility. The unconventional dimensions can be tailored to fit specific needs that traditional paper sizes might not accommodate.

X10 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 flexibility offered by X10 is particularly beneficial in specialized fields such as graphic design or advertising where creativity and innovation are paramount. Here, the unusual size can serve as a canvas for unique designs that wouldn't fit within the constraints of standard-sized papers.

Moreover, using an uncommon paper size like X10 can also serve as a subtle yet effective marketing strategy. It stands out among stacks of regular-sized documents and immediately grabs attention - an essential aspect in today's information-saturated world where capturing audience interest is half the battle won.

While it may not be part of any recognized ISO or ANSI series, the X10 paper size holds its own with its distinctive appeal and adaptability. Its potential to cater to niche requirements makes it more than just another paper size - it's a tool for innovation and differentiation in various fields.

Other Formats in the International Envelope Series

Interesting facts about X10

1: X10 paper is a part of the ISO 216 standard

X10 paper is one of the many sizes defined by the ISO 216 standard for paper sizes. This international standard was first introduced in 1975 and is widely used across the globe.

2: X10 paper measures approximately 138 x 97 millimeters

The dimensions of X10 paper are approximately 138 x 97 millimeters or about 5.43 x 3.82 inches. It falls within the range of small-sized papers.

3: X10 paper is commonly used for business cards

X10 paper's compact size makes it ideal for creating business cards. Its dimensions allow for important contact information to be printed on a small, portable card.

4: X10 paper can be easily cut from larger sheets

X10 size can be obtained by cutting a larger sheet, such as A7 or A6, into smaller pieces. This flexibility allows for efficient use of resources and reduces waste.

5: The aspect ratio of X10 paper is approximately √2

The aspect ratio (width to height ratio) of X10 paper is approximately √2 (square root of two). This means that when you fold an X10 sheet in half, you get two smaller sheets with the same proportions as the original.

6: The ISO series includes both rounded and truncated sizes

The ISO series, which includes X10 paper, consists of both rounded and truncated sizes. Rounded sizes have aspect ratios close to √2, while truncated sizes have slightly different proportions but still maintain consistency within each series.

7: X10 paper is not commonly used in North America

While X10 paper is part of the ISO 216 standard, it is not widely used in North America. The region primarily follows the ANSI/ASME Y14.1 standard, which includes different paper sizes.

8: X10 paper can be challenging to find in some countries

In certain countries, finding X10 paper may be difficult as it is not as commonly stocked by printers and stationery stores. However, it can often be custom-cut from larger sheets upon request.

9: X10 paper can be used for unique crafts and DIY projects

The small size of X10 paper makes it perfect for various crafts and DIY projects. It can be utilized for origami, miniature bookbinding, or creating intricate greeting cards.

10: The ISO series includes a wide range of sizes

The ISO series encompasses a broad range of sizes beyond just A-series papers. It includes B-series (used for posters) and C-series (used for envelopes) as well as other specialized formats like SRA3 and RA2.