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Photographic Series



Belonging to the ISO 216 international paper size standard, the 10R paper size is a unique and versatile format. It measures 254mm x 305mm or 10 inches x 12 inches, making it an ideal choice for various applications.

Unlike other sizes in the ISO series, the aspect ratio of the 10R does not follow the square root of two. Instead, it adheres to a more traditional photographic print size that's been in use since before digital photography became mainstream.

10R 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 larger dimensions of this paper size make it perfect for showcasing high-resolution images with stunning detail. Whether you're printing professional photographs or creating large-scale design mockups, the extra space allows your work to truly shine.

Interestingly enough, despite its non-standard aspect ratio within ISO series, this format has found its niche in specific industries such as photography and advertising where larger prints are often required. This demonstrates how even seemingly unconventional choices can carve out their own place in a standardized world.

While not conforming to typical ISO standards like A4 or A3 sizes do, the 10R paper size holds its own unique appeal and practicality. Its larger dimensions offer ample space for detailed prints and designs while maintaining a classic photographic print format that many professionals still prefer today.

Other Formats in the Photographic Series

Interesting facts about 10R

1. The Origin of 10R Paper

10R paper is part of the international paper size standard known as the ISO 216 series. It was first introduced in Germany in the early 20th century and has since become widely used around the world.

2. The Dimensions of 10R Paper

The dimensions of 10R paper are 254 mm x 203 mm (10 inches x 8 inches). It falls under the category of "RA" sizes, which are proportionally larger than their "A" counterparts.

3. Common Uses for 10R Paper

Due to its compact size, 10R paper is often used for various purposes such as printing photographs, postcards, greeting cards, and small-sized documents like certificates or invitations.

4. The Significance of "R" in its Name

The letter "R" in the name "10R" stands for "rectangular." This indicates that it is a rectangular-shaped paper size rather than a square one like some other ISO sizes.

5. Variations Across Different Countries

In some countries, such as Japan and South Korea, there are slight variations in the dimensions of what they consider to be equivalent to 10R paper. These differences can range from a few millimeters to centimeters.

6. Compatibility with Envelopes

A standard C5 envelope (162 mm x 229 mm) fits perfectly when used with folded or trimmed sheets of 10R paper without any additional adjustments required.

7. Historical Connection to Traditional Printing Methods

The dimensions of many traditional photographic prints made using darkroom techniques closely resemble the size of 10R paper. This connection adds a nostalgic touch to its usage in modern printing.

8. Availability in Different Paper Types

10R paper is available in various types, including glossy, matte, and textured finishes. This versatility allows for different aesthetic choices depending on the desired outcome of the printed material.

9. Compatibility with Digital Printing

With advancements in digital printing technology, 10R paper can now be easily printed at home or by professional printers using high-quality inkjet or laser printers.

10. The Global Reach of 10R Paper

The ISO 216 series, which includes 10R paper, is widely adopted across more than 150 countries worldwide. This standardization ensures compatibility and ease of use for both consumers and businesses alike.