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US Envelope Series



Belonging to the ISO 216 standard, the A-7 paper size is a unique and versatile format. This international standard, recognized globally, ensures consistency in paper sizes across different countries and industries. The A-7 size is part of the A-series that follows a logical and practical system based on a simple aspect ratio of √2:1.

The dimensions of an A-7 sheet are 74 x 105 millimeters or 2.91 x 4.13 inches, making it compact yet functional for various applications. Its small size makes it ideal for creating pocket-sized notebooks, small leaflets, or personal invitations.

A-7 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

One fascinating aspect of the A-series is its scalability. If you fold an A-7 sheet in half along its shortest side, you'll get an even smaller format known as A-8. Conversely, if you combine two A-7 sheets side by side along their longest edge, you'll create an A-6 format.

While not as commonly used as its larger counterparts like the ubiquitous A4 or letterhead-friendly A5, the versatility of the compact yet functional A-7 should not be underestimated in both professional and creative settings.

Whether your needs are commercial or personal - from business cards to wedding invitations - understanding and utilizing this unique paper size can add a touch of sophistication and practicality to your printed materials.

Other Formats in the US Envelope Series

Interesting facts about A-7

1: A-7 Paper Size

A-7 paper is part of the ISO 216 standard series, which defines the sizes of paper used globally. It measures 74 x 105 millimeters or approximately 2.9 x 4.1 inches.

2: Envelope Compatibility

A-7 paper is commonly used for creating envelopes that can fit greeting cards, invitations, and small notes. Its compact size makes it ideal for personal correspondence.

3: European Origin

The ISO paper size system originated in Europe during the early twentieth century as a means to standardize paper sizes across countries and industries.

4: Aspect Ratio

The aspect ratio of A-7 paper is approximately equal to the square root of two (√2). This unique ratio allows for easy scaling and resizing without altering the proportions of the original document.

5: Versatile Usage

A-7 paper finds applications beyond envelopes and notes. It can be used for creating small flyers, brochures, business cards, or even as a base for intricate origami designs.

6: Historical Significance

The A-series paper sizes were first introduced by Germany in the early twentieth century under DIN (Deutsches Institut für Normung) standards. The system was later adopted by other countries worldwide.

7: Scaling Possibilities

If you fold an A-7 sheet in half along its longer side, you get an A-8 size; folding it again gives you an A-9 size. This pattern continues throughout the entire ISO series.

8: Commonly Used in Stationery

A-7 paper is a popular choice for stationery items such as notepads, memo pads, and sticky notes due to its convenient size and ease of use.

9: A-7 Envelope Dimensions

The standard envelope size for A-7 paper is known as the Baronial envelope. It typically measures around 5.25 x 7.25 inches or approximately 133 x 184 millimeters.

10: International Recognition

The ISO paper sizes, including A-7, are recognized and widely used in countries across the globe, making them essential for international printing and document exchange.