Templates Paper & Print

ISO A3

11.7 x 16.5 in CMYK 1.41:1 portrait

An 11.7 by 16.5 in (297 by 420 mm) ISO A3 sheet. Twice the area of A4 and the size most office laser printers can produce when configured for tabloid output.

11.7 x 16.5 in

about the size of a tabloid sheet

About this size

A3 is the largest A-size that fits in standard office equipment. Most laser printers with a Tabloid paper tray handle A3 natively, which makes it the practical step up when A4 is too small for the design but a trip to a print shop is not warranted.

The format also matches Tabloid (11 by 17 in) closely enough that the two are often interchangeable for office output, though the proportions differ slightly and the trim is not the same.

  • Posters
  • Sketches
  • Print layouts

Pro tips

  1. 1 Fits most office laser printers configured for Tabloid output. A useful step up from A4 without leaving the office equipment pipeline.
  2. 2 A useful midpoint when A4 is too small. Larger format gives layout room without the workflow weight of A2 or A1.
  3. 3 Close to but not identical to US Tabloid (11 by 17 in). The proportions are slightly different; do not swap files between the two without checking trim.

Same series — ISO A-Series

Rendered at relative scale; tap any size to open it.

ISO A0 33.1 x 46.8 in Open ISO A1 23.4 x 33.1 in Open ISO A2 16.5 x 23.4 in Open ISO A3 11.7 x 16.5 in You're here ISO A4 8.3 x 11.7 in Open ISO A5 5.8 x 8.3 in Open ISO A6 4.1 x 5.8 in Open

Compare with

Sizes often weighed alongside ISO A3. Open a side-by-side breakdown.

Paper & Print ISO A3 vs ISO A4 Side-by-side specs and scale visual. Open comparison

Other useful sizes in Paper & Print.

33.1 x 46.8 in

33.1 x 46.8 in

ISO A0

ISO A0 is a 33.1 x 46.8 in Sketchpad template for paper & print projects.

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23.4 x 33.1 in

23.4 x 33.1 in

ISO A1

ISO A1 is a 23.4 x 33.1 in Sketchpad template for paper & print projects.

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16.5 x 23.4 in

16.5 x 23.4 in

ISO A2

ISO A2 is a 16.5 x 23.4 in Sketchpad template for paper & print projects.

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8.3 x 11.7 in

8.3 x 11.7 in

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ISO A4

ISO A4 is a 8.3 x 11.7 in Sketchpad template for paper & print projects.

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